Sunday, August 28, 2011

INTRODUCTION AND DEDICATION




KEYNESIAN ECONOMICS 101



LEARN HOW WE CAN EMPLOY EVERYBODY WHILE REDUCING OUR DEBT RATIO BY REBUILDING OUR INFRASTRUCTURE



Please join my economics class by clicking on the "Lecture 1" link at the right after reading the following dedication. If the lectures are not listed, click on "August". You don't have to register, pay a fee, keep a schedule, do homework, or pass an exam for credits or degrees. You don't have to log-on, enter a user name, or remember a password. But if you study these lectures, you will discover the ONLY way out of this mess. Economics is too important to be left to the economists. and the most important and the most controversial economic question dividing our government, our voters, and perhaps your family, is the theory of the British economist, John Maynard Keynes (1883-1946). Biography review Our current “Great Recession” brought us plummeting tax revenues, exploding recovery costs, a large federal budget deficit, and hysterical cries for less government spending NOW, exactly when we should be employing our idle resources to rebuild our decaying and obsolete infrastructure. With effort, anyone with an above-average IQ can understand Keynesian economics. But that’s only half of us so, our half must out-vote the other and so, I am offering you this free learning opportunity. The following is a short summary of Keynesian economics that requires only a 12-year-old’s knowledge of arithmetic and, since it is more difficult than the course itself, serves as an entrance examination of sorts. If you can't follow the arithmetic, ask a 12-year-old for help. THE KEYNESIAN CATECHISM Unemployment rate ≈ 9%. National Debt = ND ≈ $14.5T. Gross Domestic Product = GDP ≈ $14.8T. Debt Ratio = DR = ND / GDP ≈ 98.0%. What should Congress do? Just as World War II DEstruction ended our Great Depression, so will massive, nation-wide CONstruction end our Great Recession. With a stimulus large enough to employ everybody who can work (à la World War II), the newly employed will rebuild our infrastructure, spend their paychecks, boost tax revenue, and multiply GDP. The magic of stimulus is in the multiplier: M ≈ 2.5. If the stimulus = S dollars spread over five years, then average GDP growth = ΔGDP = Multiplier × Stimulus / 5 = M × S / 5. Since GDP growth increases tax revenue and, relative to GDP, our tax burden (for all levels of government) = TB ≈ 30%, therefore, our five-year tax revenue growth = ΔTR = GDP growth × Tax Burden × 5 = ΔGDP × TB × 5 = (M × S / 5) × TB × 5. = M × S × TB. And our Infrastructure Purchase Discount = IPD = ΔTR/S = (M × S × TB) / S = M × TB ≈ 2.5 × 30% ≈ 75%, which ain’t bad. But if M = 3.0 (Yes, it’s possible!) and TB = 33% (as it should!), then IPD = M × TB = 3.0 × 33% = 99%!! and that comes with full employment, too! And if M ≈ 2.5 and S = $4T, then average GDP growth = ΔGDP, = M × S / 5 ≈ 2.5 × $4T / 5 ≈ $2T. And the average GDP growth rate = ΔGDP / GDP = $2T / $14.8T = 13.5% (as during WW II) and our Treasury bond rating goes to AAAA++++!!!! and our Treasury bond interest rate drops!!!! And five-year tax revenue growth = ΔTR, = ΔGDP × TB × 5 ≈ $2T × 0.3 × 5 ≈ $3T. And the new (post-stimulus)National Debt = ND + S - ΔTR ≈ $14.5 + $4T - $3T ≈ $15.5T. And the new (post-stimulus) GDP = GDP + ΔGDP ≈ $14.8T + $2T ≈ $16.8T. And the new (post-stimulus) Debt Ratio = new ND / new GDP ≈ $15.5T / $16.8T #8776; 92.3%. And the Debt Ratio change = ΔDR, = the new (post-stimulus)DR − DR ≈ 92.3% − 98% ≈ −5.7%!! So, with a stimulus of $4T, we can re-employ millions to rebuild our crmbling infrastructure at maybe zero deficit increase and also reduce our debt ratio by over 5%! Just as World War II spending hired millions who traded their "Victory" bonds for cars and homes and turned old farms into new suburbs, so will rebuilding our infrastructure restore our prosperity. But what determines the value of the multiplier, M? My course answers your questions about Keynesian economics. I have tried to simplify the theory so that, by understanding the facts and logic, every citizen with an above-average IQ can cast an informed vote. Did I succeed? You tell me! I welcome your comments and questions. In any case, I did my best. Now,it's your turn. Marvin Sussman, retired engineer ©2011 Marvin Sussman All Rights Reserved After reading the dedication below, Please click on "Lecture 1", above on the right. If the lectures are not listed, click on "August".

DEDICATION

This web site is dedicated to my fellow World War II 4th Cavalry Reconnaissance Squadron “A” troopers. My “Fighting Fourth” was a regular US Army unit with a history reaching back before the Civil War. Before entering combat, all the commissioned officers were graduates of West Point or of the Virginia Military Institute. All the non-commissioned officers had five to 25 years of service in the mounted cavalry. These were men who devoted their lives to the defense of their nation. All the privates were wartime volunteers from every corner of the nation: Brooklyn Italians, Chicago Poles, Irish, and Jews, Minnesota Scandinavians, Carolina Appalachians, Dakota Sioux. For the D-Day assault on Normandy, in the wee hours of the morning, long before H-Hour, “A” troop cleared a fortified island lying off the coast, opening the way to the mainland. My sergeant, Harvey Olson, and Corporal Thomas Killoran, both of the 2nd platoon, were the first American soldiers to land on a French beach, swimming ashore from a raft, with flashlights to guide the landing craft. As a boy, Sergeant John Onken, of the 3rd platoon, came to America from Germany with his parents after World War I and retained a slight accent. Especially friendly toward Jewish troopers, John could not understand why Germany followed the Nazis. John Onken was the first American soldier to die on a French beach. In 11 months of combat, from Utah Beach to the heart of Germany, “A” troop, no more than 140 men at full strength, (and never at full strength), suffered more than a hundred battle wounds and 36 deaths, including two captains and four lieutenants. President Franklin Delano Roosevelt awarded his Distinguished Unit Citation to the 4th Cavalry Reconnaissance Squadron for its: “...gallantry and esprit de corps... above and beyond the call of duty...” during the “Battle of the Bulge”. These troopers saw their nation in peril, and, in keeping with the highest traditions of the US Cavalry, rode to its rescue, and did extraordinary deeds of valor. While honoring their service, may this web site also enhance the heritage they preserved. Marvin Sussman

Thanks for your interest. Marvin Sussman, retired engineer Copyright © 2011 Marvin Sussman All rights reserved.    Please click on "Lecture 1", above on the right. If the lectures are not listed, click on "August".

Lecture 1. FEDERAL GOVERNMENT AND NATIONAL DEBT



Please note: For brief definitions of unfamiliar terms, click on "Jargon" at the top of the page or search Wikipedia online for more complete definitions.

National Debt (ND)

The wealth of nations is measured by their assets and liabilities. Our nation’s assets are its natural resources and its productive capacity, including its infrastructure and its people. Our liabilities are the net sums owed to creditors by the federal government: the National Debt (ND). Throughout this course, the ND refers to “Gross Debt”, which includes both Treasury bonds and notes held by the public and insurance payments eventually due to Social Securty, Medicare, and other beneficiaries. Throughout this course, we deal essentially with the federal government, which can issue currency. In economic terms, a state or local government, which cannot issue currency, is like a branch office of the federal government: it can tax, borrow, and spend but cannot issue currency. It does not have a central bank, like the Federal Reserve, that can create currency. If successfully sued by its creditors, it can become insolvent. Only the federal government is sovereign and solvent because it can ultimately create currency.

Government Power and Impotence

By law, the Federal Reserve has a delicate balancing act: "...to promote effectively the goals of maximum employment, stable prices, and moderate long-term interest rates." The Fed is now (mid-2011) failing at the first and most important goal: jobs. During the 1930s and 1940s, Marriner Eccles was the chairman of the Federal Reserve. He steered the economy through the Great Depression, WW II, and into a flourishing post-war era. When Japan bombed Pearl Harbor,he did not call in the Treasury bond holders and beg for sympathy. He laid down the rules. To compare his command of a crisis with the impotence of the current Fed, it is worth reading this full description of his strategy, including this excerpt: "Today’s fiscal conservatives prefer to ignore the history of the 1940s, a period when the Federal Reserve was far more accountable to elected officials and far more independent of the private financial interests that have come to dominate the Fed in recent decades. During the 1940s, the federal government spent and borrowed far greater than today as a percentage of overall economic activity. Today, federal spending is about 25 percent of gross domestic product; in the 1940s, spending peaked at nearly 45 percent of GDP. Today’s federal deficit is about 9 percent of GDP; in the 1940s, the deficit peaked at 31 percent of GDP. Today, the federal debt held by the public is about 61 percent of GDP; in the 1940s, it peaked at over 114 percent of GDP. Did those higher spending and debt levels bankrupt the U.S. economy? Quite the contrary — federal spending was critical to the war effort and the success of the U.S. economy. "After the war, massive federal spending funded social policy on a grand scale through the GI Bill of Rights and made available job training, tuition-free higher education,health care, and housing subsidies to nearly 16 million returning veterans, a third of the workforce. The GI Bill thereby bolstered an expanding middle class and created the conditions for sustainable economic growth. The growing economy pushed up tax revenues, lowering the debt burden and helping the federal government pay down debt." While blaming "Washington", we must also blame the real culprits: the voters, past and present, whose stupidity and/or ignorance of economic and political matters have saddled our nation with four self-inflicted problems: 1.  The Congressional struggle to raise the debt limit. Due to a law that violates the separation of powers, Congress first votes to assume a debt and then forbids payment of the debt by the executive branch until it gives its permission. The turmoil threatens the global economy for purely political reasons. 2. Our self-imposed, legal dependence upon the Treasury bond market to finance the administration of the US government (and therefore our economy). According to law, Congress must either tax or borrow whatever it spends. But a sovereign nation, which issues its own fiat currency, cannot physically fail to pay its debts as long as the computer keyboards of the Treasury Department and the Federal Reserve are still functioning. Treasury bonds offer the public a risk-free haven for savings at an interest rate usually high enough to protect against inflation. There is no good reason to pay a higher interest rate. If bond holders stop buying bonds, we will continue to feed, shelter, clothe, and defend ourselves. Requiring Congress to tax or borrow before it can spend is beneficial only to the bond holders. Our nation thrived for a century before Congress tied its own hands. As a result, over 200 million adults are supposedly at the mercy of a small number of bond-holders, all of whom have willingly invested in Treasury bonds and don't know what else to do with their money. To explain the problem and propose a solution would be outside the scope of this course. Interested students should look into the "New Economic Perspectives" blog for a good explanation of the operations of the Treasury and the Federal Reserve. 3.  The maldistribution of wealth, income, and political power. This is best explained by this excerpt from Michael Hudson's article in the "New Economic Perspectives" blog: "Altogether, the post-2008 crash saw some $13 trillion in such obligations transferred onto the government’s balance sheet from high finance, euphemized as “the private sector” as if it were the core economy itself, rather than its calcifying shell. "Instead of losing on their bad bets, bad loans, toxic mortgages and outright fraudulent claims, the financial institutions cleaned up, at public expense. They collected enough to create a new century’s power elite to lord it over taxpayers in industry, agriculture and commerce who will be charged to pay off this debt. "If there was a silver lining to all this, it has been to demonstrate that if the Treasury and Federal Reserve can create $13 trillion of public obligations – money –electronically on computer keyboards, there really is no Social Security problem at all, no Medicare shortfall, no inability of the American government to rebuild the nation’s infrastructure. The bailout of Wall Street showed how central banks can create money, as Modern Money Theory (MMT) explains. But rather than explaining how this phenomenon worked, the bailout was rammed through Congress under emergency conditions. Bankers threatened economic Armageddon if the government did not create the credit to save them from taking losses. "Even more remarkable is the attempt to convince the population that new money and debt creation to bail out Wall Street – and vest a new century of financial billionaires at public subsidy – cannot be mobilized just as readily to save labor and industry in the “real” economy. The Republicans and Obama administration appointees held over from the Bush and Clinton administration have joined to conjure up scare stories that Social Security and Medicare debts cannot be paid, although the government can quickly and with little debate take responsibility for paying trillions of dollars of bipartisan Finance- Care for the rich and their heirs." 4.  The obsession with debt, of which over 80% was produced by the policies of those most obsessed by it. In fact, the ND is important only when debt interest payments are unsustainably high. This is not the case now and can never happen with full employment and high tax revenues. Relative to the GDP, our post-WW II publicly-held debt was twice its present value but was never reduced by a penny. Instead, with unemployment rates rarely below 5% and top tax rates over 50%, our GDP simply grew large enough so that, at Reagans's first inauguration, 35 years later, the ratio was down to 25% of its peak. That is when the tax-cutters began to wreak havoc. Today, the ratio is back up to 50% of its WW II peak. With pre- Reagan GDP growth and tax rates, we could regain the pre- Reagan ratio and also reduce our dangerous income and wealth inequality. We do not have a spending problem. Due to the maldistribution of income and wealth, we have a demand problem that results in an unemployment problem that creates a tax revenue problem that looks like a deficit problem that could become a debt problem if we don't get rid of the maldistribution-of-income-and-wealth problem. Instead of voting for deficit hawks in both parties, an intelligent, educated, and rational electorate would demand a program of full employment based upon repairing, rebuilding, and improving our obsolete and decaying infrastructure. The purpose of this course is to show that such a program finances itself in the same manner that wasteful WW II spending created post-war prosperity.

Proceed to: Lecture 2. GROSS DOMESTIC PRODUCT (GDP)


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 2. CONSUMERS & GROSS DOMESTIC PRODUCT



Economic activity consists of the production and sale of goods and services, followed eventually by their consumption. Only the retail value of the goods and services adds to the output of the economy. Thus, the size of our national economy is measured by its GDP, the total retail value of domestic products and services delilvered annually. We call the average tax rate at all levels of government the “Tax Burden” or TB. After paying taxes, consumers have a disposable income, from which they can either consume goods and services or save in various accounts. In economic literature, the average proportion of disposable income consumed is called the “Marginal Propensity to Consume” or MPC. The disposable income not spent is saved and the average proportion saved is called the “Marginal Propensity to Save” or MPS. The partition of consumer spending among TB, MPC, and MPS is critical to the economy. Consumers always have needs and when they have a secure source of money, the “life blood” of the economy, MPC will dominate MPS. When consumers are insecure about their source of money, MPC falls as MPS rises, the GDP drops, and - voilà - a recession! Therefore, to avoid a recession or to recover from a recession, there are certain

BASIC REQUIREMENTS:

1. The amount of money in the economy must be sufficient and assured. 2. The money in the economy must be distributed so that the entire population can purchase essential goods and services. (We now have the greatest maldistribution of wealth and income since the Great Depression.) 3. Since, according to our Constitution, it is the basic purpose of the U.S. government to “...promote the General Welfare and secure the Blessing of Liberty to ourselves and our Posterity,...”, the “essential goods and services” include all the food, shelter, play, and health care needed by children and all the education children can absorb until their education is complete, regardless of the wealth or poverty of their parents. 4. Since the well-being of children is inseparable from the well-being of their parents, grandparents, guardians, and employees of schools, hospitals, merchants, producers, and other members of their community, “essential goods and services” include the food, shelter, and health care needed by adults, regardless of their weath or poverty. 5. Since the states cannont issue sovereign currency, it is impossible for the states to to manage the economy so that “essential goods and services” may be purchased by the entire public. Therefore, it is the sole responsibility of the federal government to manage the economy so that “essential goods and services” may be purchased by the entire public. States cannot control their economies or maintain the highest standards in delivery of health and education services. They are bound to fail as they are now failing. 6. Since, according to the preamble of our Constitution, it is the will of "We, the people, in order to form..., establish..., insure..., provide..., promote..., and secure..." whatever we need, the federal government should be big enough to do what needs to be done. The central thesis of Keynesian theory is that the policy of the federal government should be to do what needs to be done to fulfill these requirements. A small government cannot build the world's greatest infrastructure. Without the world's greatest infrastructure, we will not have the world's greatest industrial base. Without the world's greatest industrial base, we will not have the world's greatest military, naval, and air defense. Without the world's greatest defense, our very existence as a nation is in jeopardy. A small government is a betrayal of our heroes who died so that a great nation could provide a great defense against a dangerous world. A small government is the road to serfdom. A small government is only the fetish of small minds.

GDP = Productivity x Employment Rate x Time

While the GDP is our economy's output, the economy's efficiency is measured by its productivity, defined as: (1) Productivity = GDP / Total Annual Working Hours Thus, nations differ in the average value of the goods and/or services that each hour of work will produce. A nation grows richer due to a gain in productivity. Multiplying equation (1) by its denominator yields: (2) GDP = Productivity × Total Annual Working Hours To understand the factors that determine GDP, we define: (3) Employment Rate = Total Annual Working Hours ÷ Total Annual Available Working Hours Employment Rate is directly proportional to production capacity. The economy is considered to be at peak production capacity when the unemployment rate is 2%, (This assumes that at least 2% of the working population is always otherwise occupied.) Multiplying equation (3) by its denominator yields: (4) Total Annual Working Hours = Employment Rate × Total Annual Available Working Hours Finally, substituting equation (4) into equation (2), we have: (5) GDP = Productivity x Employment rate x Total Annual Available Work Hours Thus, the GDP depends on three factors: 1. Productivity increase can arise from two sources: A. Technological innovation. These productivity gains are the result of two developments: (a) Basic infrastructure: long-term developements, such as systems of transportation, communication, etc. These require political commitment to large investments with distant pay-offs. This can happen only with unusual leadership and national unity. It also requires an excellent system of education, especially in science. Currently, the US is behind dozens of nations in science education. In particular, Asian countries are running far ahead of us. Worse yet, teachers salaries and pensions are under severe attack by short-sighted deficit hawks. (b) Short-term innovations such as TV, cell-phones, etc. Industry produces these inventions, but industry depends upon a work force with a sufficient level of technical education, which is a long-term investment. B. Increased human effort (“speed-up”) This occurs especially during during a recession when industry cuts costs by laying off well-paid employees with fringe benefits and ordering the remaining employees to take on an additional load, sometimes augmented by temporary aid without fringe benefits. During the current recession, productivity has increased over 9% during a three-year period with negligible increase in hours worked or salary.  Even during prosperity, the US falls behind most advanced nations in vacation time, paid maternity leave, and similar benefits. For this reason, productivity comparisons between nations is deceiving. Thus, productivity requires long-term investment, which requires an intelligent electorate. 2. During a recession, employment rate is a factor that government can affect in the near term only by heavy investment in infrastructure, including defense: a stimulus. (World War II was an extreme example.) In general, full employment is the responsibility of the federal government, requiring the joint efforts of the administration, Congress, and the Federal Reserve. In particular, the nation cannot recover from a major financial collapse, such as the Great Depression or our 2008 meltdown, without the joint effort of all branches of government. At present (mid-2011), the unemployment rate is about 9%. Underemployment (those working less than 30 hours per week and seeking full-time work) is at about 16%. Thus, the effective unemployment rate is about 17%. Raising employment by ten million workers would add over $1T annually to the GDP. The tax revenue on such GDP growth would be over $300B. The reduction in relief benefits would add another $300B yielding a $600B total budget gain annually. The ten-year gain would be $6T. For our 20 million unemployed, the ten-year gain would be $12T. What deficit? Thus, the employment rate is a measure of prosperity. The view of Keynesian theory is that the federal government should pursue a policy of full employment to meet the BASIC REQUIREMENTS listed above. Conservatives claim that tax reduction for the wealthiest would increase the employment rate. That may happen during prosperity, but that is exactly the point at which tax revenue should be maximized to avoid inflation and control the deficit. During a recession, the profits and tax burden of industry (especially small business) are too low to influence a decision. Low interest rates, cheap labor, and abundant capacity insure that any good opportunity will be easily funded. The chart below (from the Bureau of Labor Statistics and Tax Policy Center) plots average employment growth versus top tax rate. There is no evidence that lower tax rates for the rich stimulates job growth. If everyone complaining about the lowest tax level in 60 years would buy an automobile, they would know who creates jobs. 3. Total Available Working Hours is a long-term GDP factor dependent upon population, birth and death rates, immigration and emmigration, and cultural changes such as percentage of women at work, youth in school, etc. In general, government can do little to affect Total Annual Available Work Hours in the near term. In the long term, pro-family programs could increase the population and immigration policy could become more liberal, especially with regard to foreign students and scientists. Again, there is much anti-immigration opinion among conservatives.

CONCLUSION:

The growth of GDP, the most important measure of our national wealth and health, is dependent upon gains in productivity and infrastructure. Gains in productivity are likewise dependent upon infrastructure, especially our system of public education. Thus, our future depends almost entirely upon public investment in infrastructure.

Proceed to: Lecture 3. THE ACCOUNTING MODEL OF GDP

Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 3. THE ACCOUNTING MODEL OF THE GDP



Consider the GDP as national income that come only from three sources: (For the present, we will assume that exports = imports and thus ignore foreign trade balance effects.) C = Consumer Spending I = Investment by Individuals G = Govenment Spending The nation disposes of this income by three types of expenditures: C = Consumer Spending S = Savings T = Taxes Since, over time, income must equal expenditure, the following equations are valid: C + I + G = C + S + T, or, subtracting C from both sides: I + G = S + T, or, transposing S and G: (1) I - S = T - G The left side of equation (1) represents the private sector. If the difference is positive, the private sector is a net borrower and, otherwise, a net saver. The right side of equation (1) represents government. If the difference is positive, government has a surplus budget and, otherwise, a deficit. Let us emphasize that this is not economic theory but rather straight forward, uncontesable accounting, where the numbers must "add up". If either side of equation (1) is positive, so is the other. In that case, when the government has a surplus budget, the private sector is a net debtor. However rarely this happens, and no matter how many billionaires there are, there are many others in debt. If either side is of equation (1) is negative, so is the other. In that case, when the government budget has a deficit, the private sector has a surplus balance. No matter how many people are unemployed, there are, on balance, trillions available for spending. This is our current situation.

The Role of Trade Balance in the Model

When the foreign trade balance is considered, the logic does not change. There is simply an additional factor: Exports minus Imports = X - M = Net Exports A positive balance in this account (also called the the "Current Account") means that the private sector has a net claim on foreign assets. Unfortunately, this account has been negative for two decades. It deficits are private sector debits. The symbols above (from the blog:"New Economic Perspectives", an excellent web site from which to learn economics) portrays the flow of money between all three sectors: private, public (government), and foreign. Each sector has in-flows and out-flows to the other sectors. Each transaction has two entries. For every transaction, money goes in one direction and its value in goods and/or services goes in the other direction. If, by chance, all three sectors have "Net Exports" balances equal to zero, the sum of the three balances will be zero. Otherwise, if only one sector has a "Net Exports" balance equal to zero, the other two sectors will have equal and opposite balances so that the sum of the three balances will still be zero. It would be impossible for only two of the sectors to have a zero balance. The remaining sector would have a non- zero balance but no debtor or creditor. If two of the three sectors jointly have either a positive balance or a negative balance, the remaining sector must have a balance equal and opposite to the sum of both of the other balances. Thus the the sum of the three balances will still be zero. That covers all possible cases. Thus, the economy of the three sectors really is a zero-sum game! In the above circuit, the sum of all balances is always zero. This gives rise to an identity: Private Sector Savings (S - I) + Public Sector Surplus (T - G) + Foreign Sector Surplus (M - X) = zero

The Complete Accounting Model

Re-writing the above identity: (2) (S - I) + (T - G) + (M - X) = 0 and multiplying by -1 yields: (3) (I - S) + (G - T) + (X - M) = 0 and transposing (G - T) yields our final equation: (4) (I - S) + (X - M) = (T - G) Thus, from an entirely different concept, we have again derived equation (1) above with the addition of "Net Exports" as a Private Sector claim on foreign assets.

Consequences

It is important to recognize that, because of the zero sum of balances, with Foreign Sector Surplus relatively stable, Public Sector Surplus growth (less government spending) implies Private Sector Savings decline (more consumer debt). Conversely, with Foreign Sector Surplus relatively stable, Public Sector Surplus decline (more government spending) implies Private Sector Savings growth (less consumer debt). The government’s deficit is someone else’s surplus and the government’s debt is someone else’s asset. If we want the government to pay off its entire debt, then we must want every single private portfolio to lose its Treasury securities. Since all of us agree that the private sector should save, we must also agree that the government should borrow. Now we can see why the attempt to balance the budget in the early 1930s brought on the Great Depression and why the same policy in 1937 caused another recession. Reducing government spending during a recession is lunacy.

The Proof is in the Pudding

Having explained the model and stated our conclusion, let us now verify the model with data. It is interesting to confirm our accounting principles by examining data from the NIPA (National Income and Product Accounts) file in their Sectorial Balances Data. (A hat tip to Scott Fullwilir and Stephanie Kelton from the "New Economic Perspectives" blog for this link.) Please note: The data below is copied exactly from the file, where the data is given in negative quantities so that equation (4) (I - S) + (X - M) = (T - G) becomes: (5) (S - I) - (X - M) = (G - T) or in the terminology of the file heading: (5) Domestic Private Surplus (S - I) - Current Account (X - M) (Net Exports) = Government Deficit (G - T) But if you look at the data in the NIPA file you will see that it is given (in the last three columns on the right) with Current Account transposed so that the file heading reads: (6) Domestic Private Surplus (S - I) = Government Deficit (G - T) + Current Account. (X - M) (Net Exports) The file data is listed as percentages of GDP. (Use algebraic addition/subtraction!) In 1998 Q3, (file line 190) we had: Domestic Private Surplus: -2.55%. = Government Deficit: +0.01% + Current Account: -2.56% (Net Exports) In this case, with Government Deficit almost zero, Domestic Private Surplus almost equals Current Account. In 1988 Q1, (file line 148) we had: Domestic Private Surplus: +1.61%. = Government Deficit: +4.20% + Current Account: -2.59% (Net Exports) In this case, the Current Account is almost the same as in 1998 Q3, but a large Government Deficit overcame the Current Account, yielding a positive Domestic Private Surplus.

Conclusions:

1. A government deficit is a private sector surplus. 2. The numbers "add up". This is not economic theory. This is simply Accounting 101. 3. Anyone who doubts the validity of the Accounting Model should have an alternate explanation for over 240 quarters of NIPA data such as given above. Q: What happens when government reduces spending during a recession? A: Money necessary for consumer spending or business investment is removed from the economy. Q: What happens when government balances the budget? A: If T - G = 0, then (I - S) + (X - M) = 0 and S = I + (X - M) or Savings = Investments + Current Account Since the Current Account is seriously negative and, during a recession, the Investments account is pitifully small, the Domestic Private Sector is a net debtor. These consumers will not be in a consuming mood. Indeed, with our inequality of income and wealth, the average consumer will be in serious debt. Q: Why would politicians call for less government spending or even a balanced budget during a recession? A: They are either fools or charlatans seeking votes from foolish or ignorant voters. Government deficits are due to reduced tax revenue, and necessary relief spending. To increase consumer spending, government deficits must be increased. During a recession, federal government austerity is a recipe for a depression.

Proceed to: Lecture 4. THE MONEY SUPPLY


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 4. THE MONEY SUPPLY


LERNERIAN ECONOMICS 101

Although this course is labeled "Keynsian Economics", it could more accurately be labeled "Lernerian Economics" since it is based upon the work of Abba P.Lerner (1903- 1982), student of (and collaborator with) Keynes at the London School of Economics. On the economics faculty of Roosevelt College, Chicago (1947-1958), he developed the theory of "Functional Finance", explained by the following: (ref: Wikipedia) PRINCIPLES of FUNCTIONAL FINANCE • The principal economic objective of the state should be to ensure a prosperous economy. Governments have to intervene; the economy is not self-regulating. • Money is a creature of the state; it has to be managed. The amount and pace of government spending should be set in the light of the desired level of activity, and taxes should be levied for their economic impact, rather than to raise revenue. • Fiscal policy should be directed in the light of its impact on the economy, and the budget should be managed accordingly, that is, a ‘balanced budget’ is not important in itself. “Budget balancing” applies to households and businesses, but does not apply to the governments of sovereign states, capable of issuing money. RULES FOR FISCAL POLICY 1. The government shall maintain a reasonable level of demand at all times. If there is too little spending and, thus, excessive unemployment, the government shall reduce taxes or increase its own spending. If there is too much spending, the government shall prevent inflation by reducing its own expenditures or by increasing taxes. 2. By borrowing money when it wishes to raise the rate of interest and by lending money or repaying debt when it wishes to lower the rate of interest, the government shall maintain that rate of interest that induces the optimum amount of investment. 3. If either of the first two rules conflicts with the principles of balancing the budget, or of limiting the national debt, so much the worse for these principles. The government press shall print any money that may be needed to carry out rules 1 and 2.

AIMING FOR THE GOLDILOCKS ECONOMY

Economies exist between two opposing threats: * Full employment, shortages, and inflation: an excess of money in the economy. * Unemployment, glut (excess inventory), and deflation: a shortage of money in the economy. A Goldilocks economy - not too hot, not too cold - can be achieved by a financial policy that would avoid these extremes by regulating the amount of money in the economy with a judicious choice of the methods described below. All that is required is political will. Currently, (mid-2011), deficit hawks (with support of half of the public) believe that removing money from the economy during a recession will increase employment by "raising confidence" - exactly the way George Washington's doctors removed "bad blood" from his veins to allow his body to gain strength. The central thesis of Lernerian theory is that the federal government should pursue a policy of full employment consistent with low inflation and sustainable debt in fulfillment of the basic requirements listed in Lecture 2.

Currency and Money Supply

Being sovereign, the government is the unique issuer of fiat currency. There is no physical limit to the amount it may issue. We do not have a gold currency standard that constricts our money supply. Money enters the economy by several means: 1. Government purchase of private assets. 2. Grants, benefits, and wages to individuals or private organizations. 3. On the open market, the Federal Reserve can purchase Treasury bonds and other securities from financial institutions. (The Bank of England has an excellent description of the term “quantitative easing”.) This money becomes available for investment but only if banks and investors are both willing. Since that depends upon their view of the economy, the policy is always viewed with doubt. The purchase also has the goal of lowering interest rates and stimulating more economic activity. 4. Commercial Banks can, by making loans, create credit accounts up to a multiple of their reserve funds. 5. Unless interest rates are close to zero, the Federal Reserve can reduce the rates to promote movement of money out of reserves. 6. An excess of exports over imports. This hasn’t happened since 1990. 7. Foreign purchases of domestic property, foreign tourism, etc. Also “repatriation” of foreign profits of domestic firms. Money is removed from the economy by several means: 1. Government sale of assets to individuals or corporations. 2. Taxes, fines, fees, etc. have that effect but are not enacted for that purpose. (It is interesting that, in a recession, the conservatives call for tax cuts to spur the economy. But, during prosperity with fear of inflation, they never call for tax increases to curb the growth and stop inflation.) 3. Among other open market transactions, the Federal Reserve sells Treasury bonds and notes to the public. This “tightens” the money supply and restricts the ability of banks to lend. 4. The Federal Reserve can raise interest rates, effectively impeding the money flow from reserves into the economy. 5. An excess of imports over exports. This is a side-effect of sending manufacturing jobs overseas. 6. Money transfers, such as domestic investment in foreign nations (This is how US jobs are shipped overseas!), corporations and individuals parking money in off-shore tax havens, money spent by army privates in a foreign pub or by generals bribing a tribal chief, tourism, etc. Thus, the money supply (and consumer purchasing power) grows or declines as a result of the difference between these two flows. To increase the flow of money into the economy, the in- flow must exceed the out-flow. In a recession, the federal government must accelerate spending relative to taxation. The federal budget must have a deficit - the larger the better to end the recession.

Maldistribution of Income and Wealth

To avoid recessions, an adequate money supply is not enough. The money must also be well distributed so that everyone can buy necessities. Maldistribution, for much of the population, is the same as a short money supply. Economists say that recessions are caused mainly by too much borrowing, spending, and debt. This is true but begs the question: why do people borrow? Obviously, they borrow because they need more than their income. But why should that happen during prosperity? Are salaries not high enough? For a large portion of the working population, salaries slowly lose the struggle with even minor inflation and the needs of a growing family. "Keeping up with the Jones family" takes its toll. Then, consumers spend less, producers produce less, and the downward spiral ends in a recession. When unions were strong and manufacturing was an important industry, such recessions were short and were overcome by inventory exhaustion and replenishment as well as by counter-cyclical acts of government. People paid off their debts, started buying again, and prosperity returned. And the cycle could begin again. But with the export of manufacturing jobs, the consumer lost the battle. Personal debt for much of the population has had a steep climb. Although national wealth has increased, it is not in the hands of many who are in debt. The booms are shorter and the busts are getting longer. Our present crisis started when Reagan successfully bribed the voters with their own taxes: beer and cigarette money for the vast majority and vast wealth for a small minority. Since that severe blow to progressive taxation, ten percent of the US annual income has been redistributed from the bottom 80% of households to the top one percent of households. Now, the middle class is being decimated and infrastructure investment has been put on a starvation diet. Household Debt vs Disposable Income ↑ ↑ ↑ ↑ START OF PERSONAL DEBT DEBACLE Reagan also put America in hock with lax enforcement of the 1979 NAFTA free trade agreement, matching US salaries against coolie wages without consideration for working conditions, pension and health benefits, or environmental standards. To avoid or recover from a recession, the economy's money supply must be both adequate and distributed well enougn to enable the vast majority of the population to purchase essential needs. The late 1920s and the early 2000s were both periods of peak maldistribution of wealth and income. Now, 80% of the US population owns less than 10% of its wealth and income distribution is similarly distorted. There are really only two cures for this disease: * A return to the pre-Reagan tax rates, including steep estate tax rates. There is no reason children of the rich should inherit more political power (which comes with the cash and begets more cash and more power, etc.) than children of the poor. * A policy of renewing domestic manufacturing and the consequent restructuring of the trade balance, as described by John B. Judis in The New Republic magazine. Such renewal cannot occur without massive investment in US infrastructure to give us technological advantages over competition.

Proceed to: Lecture 5. DEFICITS AND THE DEBT RATIO


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 5. DEFICITS & THE DEBT RATIO (DR)


Inflation

In a free market, commodity prices seek a point of equilibrium. But population growth and improving standards of living continually induce buying, scarcity, and an increase in the general level of prices: inflation. Inflation causes money to continually lose purchasing power and encourages spending or investment rather than saving. High inflation rates generally occur with a scarcity of goods or, said otherwise, an excess of money. Thus, the need to closely monitor inflation when employment rates are high or with high levels of production or investment. The Fed counterattacks inflation by raising interest rates and and otherwise reducing the money supply. Inflation is complicated by domestic shortages, e.g., oil. Then, competition for goods is world-wide and can occur during low domestic employment rates. This may cause "stagflation": unemployment plus inflation. Inflation lowers the real interest rate (the nominal rate minus inflation), which effectively lowers the cost of borrowing. The threat of inflation is a spur to investment. Inflation also helps the debtors by eroding the real value of their debt. Lower real interest rates means faster growth and lower unemployment, boosting job and wage growth. For those living off of capital rather than wages, inflation erodes their assets and capital. So investors are not in favor of lower real interest rates, faster growth, and lower unemployment. They like a "strong" dollar and are opposed to "loose" money policy. The Federal Reserve targets 2% inflation as a beneficial goal because it induces high-return investments rather than low-return savings. It also allows for some prime rate reduction during a recession. Above all, it avoids deflation.

Deflation

Deflation is the end result of a declining money supply in the hands of consumers. The consumers simply lack cash. Deflation causes money to continually gain purchasing power and induces saving rather than investment. Who would spend a dollar today if it could buy more tomorrow? The Federal Reserve can control inflation by removing money from circulation by methods described in Lecture 4. Control of deflation is an entirely different matter. Money must be inserted into the economy to promote spending, but it requires enough political will to overcome the opposition of deficit hawks. During the Great Depression, the political will was insufficient until an Austrian economist, Adolf Hitler, showed us how to insert money into the economy. He ended the Great Depression where all others had failed.

Deficits & Debt

Historically, inflation is almost permanent. The Great Depression was a rare period of deflation. The Federal Reserve targets 2% inflation to avoid deflation like the plague. But to assure inflation, while we are a net importing nation, the money supply must continually increase and the government must almost always have a deficit. Proof? Suppose now that we want the government to have a surplus consistently. Using our accounting model, we would have: Tax revenue - Government Spending > 0 (consistently) or T - G > 0 and therefore (1) T - G = (I - S) + (X - M) > 0 Because the trade balance has been and will be negative for a long period, Exports < Imports or X < M so we can transpose (X - M) in equation (1), yielding: (I - S) > (M - X) > 0 since M > X. Therefore, (I - S) > 0 or more simply: I > S or Investments > Savings With Investments being low during a recession, Savings are even less. Thus a continual budget surplus dooms the private sector to be a consistent net borrower. And since most of the wealth and income is held by millionaires and billionaires, the average consumer will be very reluctant to consume. Therefore, government spending (which inserts money into the economy) must generally be greater than tax revenue (which removes money from the economy):an almost permanent budget deficit. Thus, a budget surplus is rare and occurs only when tax rates are high during a prosperity. Indeed, we have had only one true budget surplus in the last 40 years. And that was due to decreased military spending during a technology boom with a higher tax rate than now. The result of the Clinton budget surplus or low deficits was the removal of money from the private sector, a fiscal drag which led to a recession early in the first Bush administration. With near-permanent inflation, a growing economy must continually have (minor) budget deficits and the ND must almost continually rise. With Congress's need to tax or borrow whatever it spends, it is mathematically impossible to consistently lower the ND. A permanently balanced budget is the fetish of ignorant fools and must be avoided like the plague. As we will show below, the ND can only be judged relative to the GDP and to the money supply. In fact, permanent deficits are sustainable if, over the long-term, the additional tax revenue provided by GDP growth exceeds the added bond interest payment on the annual budget deficit. This can be assured by adequate tax rates and a full employment policy to assure both high tax revenues and low bond interest rates. Think of government as a corporation which starts its growth by issuing bonds. As the corporation succeeds and grows, it issues more bonds. Its outstanding debt rises continually and everybody is quite happy - as long as dividends are adequate!

Debt Ratio (DR)

While the ND has no direct effect upon GDP, another important measure of our economic health is our national indebtedness, the DR, the ratio or percentage of the ND relative to the GDP: (1) DR = ND ÷ GDP Statements about the annual budget deficit or the ND become more meaningful when compared to the GDP. Essentially, the ND is an accumulation of debt over the last 80 years. The GDP is an accumulation of retail sales over a 12-month period. So, actually, the DR is not really a pure, dimensionless ratio. The dimension of the numerator is in dollars but the dimension of the denominator is in dollars per year. Therefore, the dimension of DR is in years. How should we interpret the DR in terms of years? If, starting January 1, all the retail income of the nation were used immediately to buy Treasury bonds and notes, a DR equal to 50% would mean that the entire ND could be completely paid off in six months. A DR equal to 200% (like Japan today) would mean that the ND could be completely paid off in two years. Our DR (about 98%) would mean that our ND could be completely paid off by Christmas. Of course, this is nonsense. In fact, the ND is never "paid off", is rarely reduced, and is indirectly related to the GDP only by tax revenue and debt interest expense. The ND is financed by paying interest on Treasury bonds and notes. The only criterion upon which to judge the present and future direction of our annual budget is the long-run sustainability of annual interest payments on the ND. A more pertinent ratio would be the ND relative to "base money", or M0, the total sum of money issued by the Treasury. M0 includes currency and bank reserves. It does not include less liquid funds, such as CDs. That ratio (ND/M0) would estimate how much the money supply is encumbered. The value of the DR is not as important as the rise or decline of the ratio. The economy is headed in the right direction when, over time, the ratio is being reduced, no matter how slight the reduction. The thesis of this course is that the fiscal policy of the federal government should be full employment (consistent with low inflation) through incremental reduction of the ratios by means of stimulated GDP growth. Substituting from equation (5) of Lecture 1 for GDP into equation (1) yields: (2) DR = ND / GDP = ND / [(Productivity) × (Total Annual Available Work Hours) × (Employment Rate)] The analysis of the denominator in Lecture 1 showed that, in the near-term, the DR is dependent entirely upon both the ND and stimulus. Unfortunately, these two factors work against each other. A stimulus will increase both the numerator and the denominator. The DR will then either rise or fall, depending upon the efficacy of the stimulus. This dilemma is the central question of Keynesian and Lernerian theory and will be analyzed in other lectures.

Safe Upper Limit for the Debt Ratio

According to the deficit hawks, our DR is now beyond its safe upper limit.   But what is the safe upper limit? Concerned about the Treasury bond market, Federal Reserve Chairman Alan Greenspan favored Bush’s 2001 tax cut because he found the DR too low at 56%. At that time, Rep. Paul Ryan (R-Wisc) concurred. Speaking of the ND, Ryan said, “It's too small." On the other hand, the European Central Bank (ECB) requires that member nations maintain a DR less than 60%. Apparently, the only good DR is 58% ± 2%, which is ludicrous.   Obviously, the ideal DR is above“too low”. But what is “too high”? In fact, as we explained above, the DR is too high only when Treasury bond “vigilantes“ are able to obtain interest rates that are unsustainably high. Using current data, our DR is 98.0%. Is that too high? Not yet, since bond interest rates remain near historic lows. The DRs of Germany, France, and Canada are about 80%. Japan’s DR is over 200%. These nations are recovering from recession but are generally prosperous.   The British Empire thrived for 200 years with DR values above 1,000! Apparently, bond holders look beyond the DR and go for the best bet they can find. US Treasury bonds are still the safest bet. Above all, GDP growth trumps the DR when it lowers the DR. In fact, there is no critical value for the DR. Our best monitor for economic health is the employment rate or rate of production relative to peak production. If our economy is going at full speed and tax revenues are at maximum and the DR is declining, the market will buy Treasury bonds at a low interest rate. The DR can be controlled by measures that maintain full employment. The economy is almost always headed in the right direction whenever the DR is reduced, no matter how slight the reduction.

Proceed to: Lecture 6. THE TRUE LIMIT TO DEFICIT SPENDING


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 6. THE TRUE LIMIT TO DEFICIT SPENDING


The Golden Rule

To find our borrowing limit, let’s take the banker’s viewpoint. A cautious banker will grant a mortgage if the home-buyer has a good credit rating and an income that can service the loan. So, one’s creditworthiness depends upon one’s history and income. The same criteria apply to nations. Our bond-holders will be patient if our nation is thriving as judged by its DR decline and its GDP growth. These determines our tax revenue, liquidity, and credit. With strong enough GDP growth, the DR can decline, even with modest annual budget deficits. For that reason, the DR is much more important than the ND. In classical (not Keynesian) economics, this criteria is recognized in undergraduate courses as the "Golden Rule": As long as the long-term, inflation-adjusted Treasury bond interest rate is lower than the long-term, inflation-adjusted GDP growth rate, the government should borrow as much money as it can borrow and spend as much of it as it can efficiently spend on infrastructure. At present, the long-term, inflation-adjusted Treasury bond interest rate is well under 2%. Since the long-term, inflation-adjusted GDP growth rate is over 3%, there is at least 1% of leeway for borrowing. Yet conservatives are calling for a balanced budget! Their ignorance of basic (not Keynsian!) economics is astounding. Keynesian and Lernerian economics agrees with the "Golden Rule" and goes a step beyond: the multiplier. Rather than try to define the term, we will use an analogy.

The Ripple Effect

If you drop a stone into a placid pool, there is first a splash and then a series of concentric circular waves rippling outward from the point of impact, with the height of each wave diminishing with distance until it finally disappears. The number of waves and their height depend only on the mass of the stone and the height of the drop. In the language of physics, the potential energy of the stone is converted into the kinetic energy of the waves plus some heat energy due to friction. If you gradually empty a sack full of stones of various size into the pool over a period of time, the laws of physics still applies to each stone, but the disturbance on the surface is more diffused. The ripples are not as obvious but the energy balance still holds. Now think of a stimulus acting as a sack of stones, a stream of federal government checks of different values entering the economy over a period of time. The total effect of the stimulus is equal to the sum of the individual effects of each check. But what is the effect of each check? When government makes a purchase from a vendor, it is a retail purchase adding to the GDP, akin to a splash of a stone as it hits the water. And the check also has a ripple effect as the vendor uses the funds from the check to write other checks to pay other vendors and employees, as well as to provide for her own salary and/or dividend. These "ripples" also add to the GDP. The chain of spending from vendor to vendor to vendor, etc., has no effect upon the GDP. But when a vendor pays employees and herself as individuals, they become consumers who either save (about 10%) or spend the rest (about 90%) of their disposable (after-tax) income. All of the consumer retail spending adds to the GDP. You can think of the tax payments (about 30% of individual gross income) as similar to the friction that causes the potential energy of the stone to generate heat instead of waves. And you can think of the checks that go to individuals as the waves that ripple through the economy, individual to vendor to individual to vendor, etc., in diminishing amounts. The rippling through the economy of the original government check is inexorable. The money goes to vendors and individuals who can save little of it. There is little or no extraneous effect upon the process. The total addition to the GDP is determined by the mechanics of the economy - how individual spend and how vendors "do business" - and not by extraneous events. As the rippling through the economy of each government check eventually diminishes to zero, the total addition of the government check to the GDP is the value of the check plus the additional consumer purchases. The ratio of this total GDP value to the value of the government check is the value of the "multiplier". The value of the multiplier is determined only by the mechanics of the economy, not by extraneous events. The effect of a stimulus upon the economy is the sum of the effect of each of its checks distributed over time. Thus, a stimulus S and a multiplier M will cause a total GDP growth equal to M × S over a period of time, regardless of extraneous events.

Numeric Example

As an example: (using mid-year 2011 approximate results as reported by usdebtclock.org) ND: $14.5T GDP: $14.8T DR: 97.97% If a stimulus (S) generated its value in total consumer spending (TCS), the value of the ratio TCS / S would be 1.0 and the value of the multiplier would be M = (S + TCS) / S = 1.0 + (TCS /S) = 1.0 + 1.0 = 2.0 With the multiplier M ≈ 2.0 and a 5-year stimulus S = $1T, then average GDP growth, ΔGDP, = M × S / 5 ≈ 2.0 × $1T / 5 ≈ $0.4T Since GDP growth increases tax revenue (TR) and, relative to GDP, our tax burden (for all levels of government), TB ≈ 30%, therefore, our 5-year tax revenue growth, ΔTR, = ΔGDP × TB × 5 ≈ $0.4T × 0.3 × 5 ≈ $0.6T And the new ND would be $14.5T (current ND) + $ 1.0T (stimulus) - $ 0.6T (tax revenue growth) ≈ $14.9T (new ND) And the new GDP would be $14.8T (current GDP) +$ 0.4T (GDP growth) ≈ $15.2T (new GDP) The new DR would be: $14.9T / $15.2T ≈ 98.02%, which is only 0.02% more than the current DR. Although $0.4T was added to the ND, the DR was hardly affected. For that reason, GDP growth is more important than the value of the ND or the annual budget deficit. Q. What is the limit to borrowing and deficit spending during a recession? A. Borrowing is justified when we expect that the deficit spending will generate enough consumer spending (and GDP) to reduce the DR.

Remarks on the Multiplier

Please note: Because (1) at 1% interest rate on debt due to the recession, the annual interest expense due to the stimulus is about 3% of the corresponding tax revenue gain and (2) to simplify the explanation, therefore, we have ignored the added debt interest expense in the calculation above and shall continue to ignore it throughout this course. In the calculation above, we hypothesized that $1T stimulus would stimulate $1T of consumer spending. Effectively, the stimulus was multiplied by 2.0 to create the total consumer spending. The multiplier is a controversial subject because of: 1. The difficulty of determining its theoretical value which is dependent only upon the actual spending habits of consumers and producers. We will devote two lectures to finding the theoretical value of the multiplier. 2. The difficulty of isolating the effect of a stimulus occurring in a dynamic economy also affected by a multitude of other major factors: war and other disasters, declines in revenue due to unemployment, trade deficits, etc. In a later lecture, we will evaluate the 2009 stimulus (ARRA) but it must be understood that the value of the multiplier cannot be judged simply by a post-stimulus view of the economy. The signal cannot be separated from the noise if it is weaker than the noise. It is only when the stimulus overwhelms other factors (e.g, WW II spending) that the effect is obvious. Whatever the dynamic factors may be, a stimulus will superimpose itself upon the economy and have an effect proportional to the true value of of the multiplier. That is why we must understand the theory.

Proceed to: Lecture 7 DEFINING THE MULTIPLIER


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 7. DEFINING THE MULTIPLIER


Among consumers, by far the largest is the federal government. Every government purchase of goods or services for $X immediately adds $X to both the ND and the GDP. Those who sold goods and services to the government will spend their government checks to manage their enterprise, (i.e., pay others for goods and services). Eventually, the chain of economic events will lead to retail consumption, increasing the GDP beyond government consumption. Thus, government purchases stimulate private consumption. The government's retail purchase of goods and services from contractors adds directly to the GDP. When contractors spend government checks for goods and services from other contractors and vendors, that is not a retail purchase. But payments to individuals as salaries, benefits, or as dividends will eventually lead to retail consumer purchases and thus become an addition to the GDP. Assuming a stimulus spread over a 5-year period, its effect may be analyzed as follows, where both stimulus and consumer spending are divided by 5: In algebraic terms: (1) Post-stimulus GDP = Pre-stimulus GDP + Stimulus + Consumer Spending Let M be a multiplier such that: (2) M × Stimulus = Stimulus + Consumer Spending. Substituting equation (2) into equation (1) yields: (3) Post-stimulus GDP = Pre-stimulus GDP + (M × Stimulus) Subtracting Pre-stimulus GDP from both sides of equation (3) yields: (4) GDP growth = Post-stimulus GDP − Pre-stimulus GDP, = M × Stimulus Dividing both sides of (2) by Stimulus yields: (5) M = (Stimulus + Consumer Spending) / Stimulus = 1 + (Consumer Spending / Stimulus) Thus, M is always greater than 1.0.

The Tax Revenue Effect of the Multiplier

When the government and consumers buy retail goods and services from producers, the amount spent is added to the GDP. Since tax revenue rises with GDP, the revenue from the added GDP growth reduces the stimulus cost. The US tax burden for all levels of government is historically about 30% of GDP, which gives us the resulting infrastructure purchase discount: Tax Revenue growth = ΔTR = 0.3 × GDP growth × 5 = 0.3 × M × Stimulus (This is the total tax revenue increase during the five-year duration of the stimulus.) Discount = ΔTR / Stimulus = (0.3 × M × Stimulus) / Stimulus = 0.3 × M Thus, a multiplier value greater than 1.67 would result in an infrastructure purchase discount greater than 50%. A multiplier greater than 3.33 would have the stimulus pay foritself! Please note: To simplify the explanation in the calculation above, we have credited the federal government with 30% of the tax revenue growth due to the stimulus. In fact, historically, the federal government gets about 18% of GDP. The states and local governments get the rest. As a result of this simplification, our stated values for ND and DR will be proportionally lower than the correct value. Our point is (1) that the simplification is necessary for proper exposition and (2) that when the federal government spends, the entire nation does get about 30% back in taxes. In a fair accounting, the federal government would charge the states for the 12% benefit from the stimulus.

The Critical Value of M

The value of the multiplier is critical because of the DR. Since the tax revenue from the additional GDP will offset the cost of the stimulus, we want the multiplier to be as much greater than 1.0 as possible. Our purpose in this course is to show that, contrary to some opinion, the multiplier is substantial enough to reduce the DR. By definition, (6) Pre-stimulus DR = ND / GDP. For a five-year stimulus S and multiplier M, the average GDP growth, ΔGDP = M × S / 5 And the total five-year tax revenue growth, ΔTR = ΔGDP × TB × 5 = (M Δ S / 5) × TB × 5 = M Δ S × TB (7) And the post-stimulus ND = ND + S - ΔTR = ND + S - (M × S × TB) (8) The post-stimulus GDP = GDP + ΔGDP = GDP + (M × S / 5) The post stimulus DR would be the result of dividing equation (7) by equation (8): (9) DR = {ND + S - (M × S × TB) ÷ [GDP + (M × S / 5)] For the DR to be reduced, Post-stimulus DR must be less than Pre-stimulus DR. Algebraically, it must be true that equation (9) be less than equation (6). For that inequality to be valid, M must be sufficiently large. How large? That is the central question of Keynesian/Lernerian economics. It will be discussed in another lecture.

How Will We Know the Effect of the Stimulus?

Our claim is that a stimulus S will produce a GDP growth equal to M × S / 5 during a five-year period but we have not said why it takes five years to exhaust the effect of the stimulus. Due to the fact that the federal government does not have a Department of Infrastructure with a backlog of “shovel-ready” programs in which to invest, the entire quantity may be spent over a three-year period. In addition, the process of stimulation is a chain reaction from vendor to consumer to vendor to consumer, etc. The speed of the reaction depends upon many factors including the average consumer’s “Marginal Propensity to Consume” or MPC, described in Lecture 2. During a recession, MPC is relatively low. Hence, consumer spending can extend two years after the last stimulus penny is spent. And while the stimulated growth is stretched out by both of these time constraints, it is also offset by the other effects of the recession. With factory shut-downs, the average consumer’s fear increases her “Marginal Propensity to Save” or MPS, described in Lecture 2. This causes sales to decline, more factory shut-downs, more fear, and more GDP decline. Also, while the federal government increases its spending, the state governments are cutting their budgets and laying off thousands of employees. Thus, the GDP growth caused by the stimulus is simultaneously counteracted by the recession’s GDP decline. For all of the reasons given above, it will be difficult to determine the effect of a stimulus. The answer to this puzzle is simply to understand that the formula: GDP growth = ΔGDP = M × S / 5 is correct and needs no post-stimulus confirmation by analysis. Regardless of other events, the calculated GDP growth will occur over time as S dollars are actually spent and not hoarded in a bank account. Given the true value of S, the amount of GDP growth depends only on the true value of “M”, which in turn is related only and entirely to the actual process of producing, spending, and consumption. It is independent of extraneous factors. That process is the subject of the next two lectures.

Proceed to: Lecture 8. THE PRODUCER/CONSUMER MODEL.


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.

Lecture 8. THE PRODUCER / CONSUMER MODEL


Assumptions

Since the GDP is the total annual sum of retail buying and selling, the players in this model are those who produce for retail sellers, the retail sellers, and those who buy from the retail sellers. The retail buyers will be called "consumers". The others will be called "producers". Among the producers, we include the retail sellers, calling them "retail producers". To explain the process of stimulation, we make the following two assumptions about consumers and producers: (While the numbers used here are chosen to simplify the arithmetic, they approximate reality.)

Assumption 1.

On average, from their gross income, consumers will shortly pay: Ct = 30% to all levels of government for taxes, leaving the consumer with 70% disposable income. Please note: since 30% = 30/100 = 0.3, we will use percentage and decimal values as equivalents. Thus, Ct = 0.3 and 1 − Ct = 1 − 0.3 = 0.7 = 70%. In economic literature, the proportion of after-tax spending from disposable income is called the “marginal propensity to consume” or MPC. We will assume that, on average, MPC = 0.9 = 90%. Thus, consumers will, on average, shortly pay to retail producers for goods and services: Cp = MPC × (1 − Ct) = 0.9 × (1 − 0.3) = 0.9 × 0.7 = 0.63 = 63% of their gross income. The proportion of after-tax savings is called the “marginal propensity to save” or MPS. Since MPC + MPS = 100% of disposable income, MPS = 100% - 90% = 10% Therefore, the consumers will save: Cs = MPS × (1 - Ct) = 0.1 × (1 - 0.3) = 0.1 × (0.7) = 0.07 = 7% of their gross income. This account for the consumer's entire gross income.

Assumption 2.

On average, from their gross income, producers will shortly pay: Pt = 2% to all levels of government for taxes. Pp = 50% to other producers for needed goods and services (e.g., material suppliers, contractors, utilities, etc.); Pc = 47% to employees and owners (who are also consumers). The payment includes employee benefits and dividends. That allocates 99% of their gross revenue. Therefore, producers will, on average, retain Pe = the remaining 1% of their gross income as owner’s equity.

Remarks on the Assumptions

We have not made an allocation for investments because these are made from savings, not income. In this model, we ignore foreign trade in the belief that, in the short-term, changes in trade imbalance would not affect the efficacy of a stimulus. For the same reasonn, we also ignore short-term inflation effects. We remind the reader that we are using averages to represent frequency distributions depicting the economic behavior of more than a hundred million households and businesses. Ideally, we would take samples of the population and collect the needed data to form these distributions. Then we would use a random number generator to sample the distributions and do a computer simulation of the economy over several years. The result would then be a more accurate picture of the stimulated growth of GDP and the value of the multiplier than with our use of averages. However, in this course, we merely wish to portray the process of stimulation and arrive at a reasonable estimate of the multiplier value. We believe the use of averages for that purpose will not be misleading.

Follow the Money

To study stimulation, we assume that “Jane Doe” is a producer who has a government contract to work on infrastructure. She has received a check for STIM dollars (STIM = $1,000) for goods delivered or services performed. We will first follow the money as it flows through the economy and calculate the Total Consumer Spending (TCS) provoked by STIM. From the value of TCS, we will calculate the multiplier value from equation (5) of the previous lecture: M = 1 + (Consumer Spending / Stimulus) = 1 + (TCS / STIM) In the (identical) tables below, Column 1 is labeled “Pp”. The Row 1, Column 1 cell displays the value of Jane’s stimulus check. The other cells in Column 1 represent producers supplying goods and services. Their cells display the payments received from producers represented by the cell immediately above.
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20
. The Row 2, Column 1 cell displays the value of goods and services that Jane buys from other producers. As required by Assumption (2), Jane pays 50% (Pp) of her gross revenue to these producers. That cell and all following cells of Column 1 display amounts equal to 50% of the amounts in the cell above. As a consequence of this procedure, the ratio of the value of any Column 1 cell (except the first) to the value of the preceding cell is 0.5 (Pp).
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20
. Column 2 is labeled “Pc”. It represents the first wave of consumers. Each cell in Column 2 displays the payments that producers represented by the cell in the same row of Column 1 pay to their employees and to themselves, individuals who are now taking the role of consumers. As required by Assumption (2), the amount is 47% (Pc) of the producers’ gross revenue. In Column 2, the Row 1 cell represents Jane and her employees. The Row 2 cell represents producers who sell to Jane and their employees. And so forth in the following cells. As a consequence of this procedure, the ratio of the value of any cell in Column 2 (except the first) to the value of the preceding cell is also 0.5 (Pp).
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20
. Column 3 is labeled “Cp”. It represents the first wave of retail producers. Each cell in this column displays the retail value of goods and services that first-wave consumers, represented by the cell in the same row of Column 2, buy from first-wave retail producers. As required by Assumption (1), the amounts displayed in cells of Column 3 are 63% (Cp) of the consumers’ gross income. These amounts are the retail producers’ gross revenue and are added to the Total Consumer Spending (TCS).
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20
. The amount of purchases made by Jane and her employees is displayed in the Row 1, Column 3 cell. We will name this amount: “Consumer Spending 1” or CS1. The following cells in Column 3 (CS2, CS3, etc.) display the amounts spent by the owners and employees of producers represented by the corresponding cells in Column 2. As a consequence of this procedure, the ratio of the value of any cell in Column 3 (except the first) to the value of the preceding cell is also 0.5 (Pp).
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20

Formulas

Since there is a constant ratio of value less than 1.0 between the amounts displayed in adjacent cells of Column 3, the numbers form a geometric series of terms. Elsewhere,we prove that the sum S of such a series is equal to: (1) S = A / (1− R), where A is the first term in the series (CS1) and R is the constant ratio between terms (Pp). Thus we have TCS1, the Total Consumer Spending of the first wave of producers and consumers: TCS1 = CS1 + CS2 + CS3 + CS4 + ... = CS1 + CS1×Pp + CS1×Pp2 + CS1× Pp3 + ... = CS1 / (1 − Pp) = $296.10 / (1 − 0.5) = $592.20
Column 1   2   3
Row Pp=0.5   Pc=0.47   Cp=0.63
1     $1,000.00   $470.00   $296.10
2     500.00   235.00   148.05
3     250.00   117.50   74.025
-       -------   -------   -------
_       _______   _______   _______
Total       $2,000.00   $940.00   $592.20
. Although we show only three rows of an infinite series, the Column 3 total is the sum of all its cells. (The reader will notice that the sums for columns 1 and 2 follow the same rule.) Thus, the $1,000 check stimulated TCS1 = $592.20 of spending by the first wave of consumers. That amount was received by the first wave of retail producers.

The First Wave Consumer Spending Formula

We can now develope a formula for spending by the first wave of consumers (TCS1). In the formula for the sum of a geometric series S = A / (1 − R), (from equation (1) above) we have: (2) A = CS1 (The Row 2, Column 3 cell value) = STIM × Pc × Cp (from Assumptions (1) and 2)) and R = Pp (The ratio of each Column 3 cell value to the following cell value.) Therefore, the formula for the first wave spending is: (3) TCS1 = A / (1 - R) = CS1 / (1 − Pp) = STIM × (Pc × Cp) / (1 − Pp) (from equation (2)) = STIM × (0.47 × 0.63) / (1 − 0.5) = STIM × 0.2961 / 0.5 = STIM × 0.5922 Dividing equation (3) by STIM yields: (4) TCS1/STIM = 0.5922 In equations (3) and (4), the value 0.5922 is dependent only on Assumptions (1) and (2)and is independent of the value of STIM, Jane‘s stimulus check. In effect, Assumptions (1) and (2) provide us with a constant, 0.5922, which converts a stimulus into a definite fraction of the stimulus as the amount of spending by the first wave of consumers by the first wave of retail producers. It may help to think of the above table as a calculator in which STIM is the input and TCS1/STIM is the output. The value of the output is entirely dependent upon Assumptions (1) and (2). In the next lecture we derive formulas for TCS and M.

Proceed to: Lecture 9. FINDING THE VALUE OF THE MULTIPLIER


Thanks for your interest. Marvin Sussman, retired engineer If you don’t like the world as it is, change it this way!:
1. Depress the Shift Key, sweep the cursor over the following URL, click, copy, and paste it on email to friends, and ask them to do the same: Keynesian Economics 101 The ONLY way out of this mess Free lectures on-line: KeynesForum.blogspot.com
2. To print and distribute single-sheet “invitations” to this site, click here and ask your friends to do the same.
3. To donate toward advertising this website, click the yellow “Donate” button below. You will be asked for your PayPal account password. If you don't have a PayPal account, you will need a credit card.
And ask your friends to do the same.
Copyright © 2011 Marvin Sussman All rights reserved.