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Marginal rate of substitution – the quantity of one good that a consumer is willing to sacrifice in order to obtain a unit of another good. A consumer will attempt to maximize the total utility that they receive from their limited income. We used utility theory to examine utility maximization in Examples 8A-8E earlier in the chapter. Now we will use indifference curves and budget constraints. Budget constraint – a curve showing the different combinations of two goods that a consumer can purchase with a certain amount of income. A consumer’s budget constraint depends on the consumer’s income and the prices of the two goods under consideration. Example 12A: Refer back to Example 8C. Consumer A has $10 of income and Good X and Good Y each cost $1 each. The graph below illustrates the budget constraint for Consumer A. Units of Good Y 10 - 9- 8- 7- 6- 5- 4- 3- Example 12B budget constraint2- 1- . 130 Example 12A budget constraint . . 180 . . . . . . . . 0 0 1 2 3 4 5 6 7 8 9 10 . . . . .. . Units of Good X . . . . . 270 . . 250 255 . 205 Consumer A can afford various combinations of Good X and Good Y. Which combination will Consumer A choose? Consumer A will attempt to choose the combination that maximizes A’s total utility. This will be the combination on the indifference curve that is tangent to (has the same slope as) the budget constraint. For the utility-maximizing combination of units, the marginal rate of substitution will be the same as the slope of the budget constraint. In this case (as in Example 8C), the utility-maximizing combination is six units of Good X and four units of Good Y. The marginal utility of the sixth unit of Good X is 15 utils. The marginal utility of the fourth unit of Good Y is also 15 utils. So the marginal rate of substitution will be 1 unit of Good X for 1 unit of Good Y. This is also the slope of the budget constraint (since the price of both Good X and Good Y is $1). FOR REVIEW ONLY - NOT FOR DISTRIBUTION Example 12B: Refer back to Example 8D. The price of Good Y increases to $3. The graph above illustrates the new budget constraint for Consumer A. 18 - 7 Utility
In this case (as in Example 8D), the utility-maximizing combination is seven units of Good X and one unit of Good Y. The marginal utility of the seventh unit of Good X is 10 utils. The marginal utility of the first unit of Good Y is 30 utils. So the marginal rate of substitution will be 3 units of Good X for 1 unit of Good Y. This is also the slope of the budget constraint (since the price of Good Y is 3 times the price of Good X). With the increase in the price of Good Y from $1 to $3, the quantity demanded of Good Y decreases from four units to one unit. So we can derive a demand curve for Good Y. See the graph below: Price $ 4- 3- 2- 1- 0 0 1 2 3 4 5 D Quantity Demanded Appendix: The Efficiency of Money Gifts In terms of efficiency, money gifts are superior to nonmoney gifts. If a money gift is given, the recipient can use the money to purchase the goods that will provide the most marginal utility to the recipient. Example 13: Sheila receives a gift of diamond earrings costing $250 from her aunt. If Sheila had received $250 from her aunt, she could have spent the money on exactly the goods that would give her the most marginal utility. It is possible that Sheila would purchase the earrings, but probably not. Study Guide for Chapter 18 Chapter Summary for Chapter 18 Utility is a measure of the satisfaction received from the consumption of a good. The best measure of the utility that a person receives from consuming a good is the price that the person is willing to pay for the good. Since consumers do not all have the same amount of income, price does not provide an objective comparison of the utility received by different persons. Marginal utility is the additional utility received from consuming an additional unit of a good. According to the law of diminishing marginal utility, the marginal utility from consuming additional units of a good eventually declines. The law of diminishing marginal utility seems to indicate that additional income would provide greater utility to a low-income person than to a high-income person. However, the utility received by one person cannot be scientifically or objectively compared to that received by another person. FOR REVIEW ONLY - NOT FOR DISTRIBUTION Utility 18 - 8
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PRINCIPLES OF ECONOMICS JEFF HOLT S
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Principles of Economics, 6th Editio
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16. Study Guide for Chapter 7 17. C
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11. Appendix: Book Review - “The
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20. Appendix: The NCAA Cartel 21. S
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Introduction: A Brief History of U.
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In the twentieth century, per capit
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Appendix: The 35 Largest National E
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Multiple Choice: ___ 1. The Jamesto
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2. Describe the economic cost of th
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Chapter 1 Scarcity and Choices The
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Example 5B: At the end of 1982, the
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Example 11: When Cindy quits her jo
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consequences may result in failure
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An upward sloping curve (as in Exam
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In making decisions, humans tend to
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5. ______________________ _________
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___ 13. If the value of one variabl
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Y Point X Y A 0 1 B 3 3 C 6 5 D 9 7
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Chapter 2 Trade and Economic System
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Example 4B: The following quantitie
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1. An increase in the quantity of r
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3. For whom to produce? This is det
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The graph below illustrates the shi
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The two primary economic systems ar
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___ 12. The capitalist vision sees
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___ 25. According to the book “Ca
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Chapter 3 Demand, Supply, and Equil
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. For inferior goods, income and de
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The same information can be placed
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Not only does a free market elimina
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$7 - 6 - 5 - S 3 S1 S 2 Price 4 - 3
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Example 17: The graph below illustr
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Questions for Chapter 3 Fill-in-the
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___ 12. Assuming a market originall
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$8 - 7 - 6 - 5 - Price 4 - 3 - 2 -
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Chapter 4 Inflation and Unemploymen
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Computing the Rate of Inflation The
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Full Employment Though unemployment
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3. Cyclical unemployment - due to d
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During the Great Depression, the ec
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Appendix: Think Like an Economist -
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Answer questions 8. and 9. based on
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___ 25. The extension of unemployme
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Chapter 5 Measuring Total Output: G
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5. Leisure. Leisure time is by defi
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The U.S. is a high per capita GDP c
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Example 17: In “An International
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The simple circular flow diagram be
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___ 3. Which of the following would
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2. Explain what nonproduction trans
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Chapter 6 The Aggregate Market The
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Example 2C: Assume the same facts a
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Example 5B: The price of crude oil
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Price Level Real GDP SRAS AD 2 AD 1
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Appendix: Why the Aggregate Demand
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___ 3. DEF Company can invest in ne
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2. List and explain the two factors
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Chapter 7 Classical Economic Theory
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Notice that the investment demand c
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Long-Run Equilibrium If Real GDP is
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Example 6B: When the economy is in
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Laissez-faire If the economy is sel
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___ 5. According to Say’s Law: a.
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3. On the graph below, draw an aggr
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Chapter 8 Keynesian Economic Theory
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Example 2B: The graph below illustr
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Example 5: Assume that the table be
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Notice on the graph on the previous
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According to Keynesian theory, a ch
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“The General Theory” also inclu
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___ 8. If the consumption function
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3. If the MPC is .667, and investme
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Chapter 9 Fiscal Policy The basic e
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Keynesian Fiscal Policy Theory and
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Example 5A: The federal government
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The Laffer Curve What will happen t
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Appendix: The Importance of Incenti
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___ 4. A decrease in government exp
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2. Explain what automatic stabilize
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Chapter 10 Money, Money Creation, a
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Example 4B: The castaways on Gillig
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Looking at the balance sheet below,
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Demand-side One-shot Inflation Exam
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4. Inflation increases uncertainty
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life; it came into existence not by
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calculated by using the potential d
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___ 12. If the required-reserve rat
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4. Referring to the balance sheet f
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Chapter 11 The Federal Reserve Syst
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5. After Bank X sells the $300,000
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Low Mortgage Interest Rates Mortgag
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Relaxed Standards for Mortgage Loan
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The Bursting of the Housing Bubble
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On February 17, 2009, the federal g
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Fed policies caused short-term inte
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___ 10. The Fed’s most important
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___ 25. In response to the recessio
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Chapter 12 Monetary Policy The basi
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2. A change in aggregate demand (AD
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Monetarist Transmission Mechanism C
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3. Borrowers do not have to seek ou
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Appendix: Book Review - “The Age
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Questions for Chapter 12 Fill-in-th
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___ 16. The primary source of incom
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7. According to Alan Greenspan, wha
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Chapter 13 Taxes, Deficits, and the
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Example 5: In 2015, Taxpayer A had
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of $5 and a quantity of 10 units. T
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The complexity of the tax law also
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the current government spending and
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cut of 1964. The top rate was lower
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___ 6. Federal excise taxes: a. are
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3. How would eliminating the loopho
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Chapter 14 Economic Growth The basi
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2. Labor. Labor can contribute to e
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estricting international trade (e.g
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An improvement in technology (e.g.
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The table below shows the economic
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will increase both Real GDP and per
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___ 8. Which of the following is co
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___ 26. The opinion that economic g
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Chapter 15 Less Developed Countries
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Example 8: Countries A, B, C, and D
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Obstacles to Economic Development f
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c. Restrictions on international tr
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Appendix: Book Review - “The Powe
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Page 304 and 305: Example 9: Capital City operates a
Page 308 and 309: The diamond-water paradox is the ob
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Page 346 and 347: Chapter 21 Perfect Competition The
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Multiple Choice: ___ 1. A perfect c
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___ 17. Perfect competition: a. req
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Answers for Chapter 21 Fill-in-the-
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Chapter 22 Monopoly Of the four mar
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3. Exclusive ownership of an essent
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maximizing quantity (4 units) creat
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$22 - 20 - 18 - 16 - 14 - Deadweigh
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2. Negotiating, beginning at a high
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Legal barriers are created by gover
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___ 8. The slope of the demand curv
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Price Quantity 3. List some of the
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Chapter 23 Monopolistic Competition
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For Percomp (the perfect competitor
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Example 7A: The graph below represe
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Example 9: The Organization of the
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Example 12 illustrates the dilemma
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its current price and quantity. The
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___ 14. Game theory: a. is a method
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Answers for Chapter 23 Fill-in-the-
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Chapter 24 Factor Markets The basic
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$ $240 - 200 - 160 - 120 - 80 - 40
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Since producers will attempt to equ
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2. Differences in nonmoney aspects
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were his strikeouts, walks, and hom
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___ 3. To maximize profits, a produ
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___ 19. According to the book, “M
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Multiple Choice: 1. a. 8. c. 15. d.
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Chapter 25 Labor Unions The primary
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The elasticity of demand for union
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Example 4A: Assume that the graph b
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Notice from the graph in Example 6
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Wage Factory A Quantity of Labor S
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As a cartel, a labor union faces a
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___ 10. For a monopsony: a. there i
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3. The graph below represents a lab
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Chapter 26 Interest, Present Value,
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An increase in expected rates of re
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An asset is valuable because we exp
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Example 13B: General Ordnance prove
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Appendix: Present Value Table One f
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___ 4. An increase in expected rate
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Problems: 1. List and explain the t
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Chapter 27 Market Failure The basic
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External Benefit If a market genera
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Example 2: To encourage the consump
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$100 - 90 - 80 - MSC 70 - $ 60 - 50
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A common good is nonexcludable. Non
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Study Guide for Chapter 27 Chapter
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___ 5. What government policy would
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4. Based on the information on the
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Chapter 28 Public Choice and Govern
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Candidates and the Median Voter Mod
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Example 8: According to State and F
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Example 10: When Elvis Presley was
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4. Pessimistic bias. This is the te
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___ 5. An elected official will: a.
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2. If a certain policy will yield s
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Chapter 29 Government Regulation of
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underproduction is the amount that
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micromanagement results in business
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market. They may agree with their c
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Questions for Chapter 29 Fill-in-th
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___ 10. The public interest theory
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4. List the four types of costs imp
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Chapter 30 Agriculture and Health C
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weather may cause bumper crops. Bad
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Security and Rural Investment Act o
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Example 12: From 1960 to 2013, the
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1. NHI would provide universal heal
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d. Insurance providers are not allo
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Study Guide for Chapter 30 Chapter
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Answer questions 7. through 10. by
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___ 21. If there were no individual
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Chapter 31 Income Distribution and
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Income is more equally distributed
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over a typical career is the accumu
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Ideal Income Redistribution The ide
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Poverty - a family whose income fal
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Appendix: Income Inequality around
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How is this story an analogy for th
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___ 2. In 2013, the Lowest Income 6
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Problems: 1. Explain the two primar
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Absolute advantage - when one natio
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Fiat money - money by government de
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Nonrivalrous good - a good for whic
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Absolute advantage, 16-9 Absolute e
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“Company town”, 25-6 Comparativ
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Eli Lilly and Company, 22-1 Emergen
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Houston, Texas, 15-10 Human capital
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Market, 3-1, 3-8-9 Market basket, 4
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Political bias, 9-4, 12-7 Political
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Short run production, 20-2-3 Short-
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Upturns, 9-4 USDA, 27-9, 30-1-2, 30
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