ECON 1000 Contemporary Economic Issues (Summer 2018) Foundations of Economics
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1 ECON 1000 Contemporary Economic Issues (Summer 2018) Foundations of Economics Relevant Readings from the Required Textbook: Chapter 1, Foundations of Economics Definitions and Concepts: economics the social science that studies how people make decisions in the face of scarcity and the resulting impact of such decisions on both society as a whole and the individual members therein. scarcity a universal phenomenon that arises because resources are limited. tradeoffs the recognition that in many situations acquiring more of one thing can often only be done at the expense of getting by with less of something else. microeconomics the study of how individual decision maker behave and interact with each other, often with a focus on how households and firms behave and interact with each other in markets. macroeconomics the study of the functioning and performance of a society s economy as a whole, often with a focus on levels of and changes in aggregate measures such as the inflation rate, unemployment rate, and gross domestic product growth rate positive statement a statement that aims to describe how the world actually is or actually functions. normative statement a statement that aims to assess the desirability of how the world is or functions, perhaps with suggestions of things that could be done to improve matters. Views of Economists on Economic and Public Policy Issues (Table 1.1 on Page 6 of textbook) rational decision maker someone with a well-defined goal, who takes actions to achieve the goal as best as possible. total benefits the gains that a person realizes from taking an action. total costs the burdens that a person incurs from taking an action. total economic surplus the difference between total benefits and total costs. Cost-Benefit Principle a guide to decision-making which states that an individual should undertake an activity if and only if the additional benefit of doing so is greater than or equal to the additional cost of doing so. marginal benefit the change in the value of total benefits as more of an activity is undertaken. marginal cost the change in the value of total costs as more of an activity is undertaken. Incentive Principle a summary of how behavior of a rational decision maker will change as costs or benefits change: (i) if the marginal benefit of an activity increases, then a rational person will engage in more of the activity, whereas (ii) if the marginal cost of an activity increases, then a rational person will engage in less of the activity.
2 self-interested individual someone who makes his own personal assessment of the benefits and costs associated with different outcomes, and who subsequently uses these measures as the basis for decision making. Incentive Principle illustrated in simple labor choice model: As noted in Table 1.2 on Page 9 of the textbook, initially Carl has: Days Worked Total Benefits Marginal Benefits Marginal Cost Total Costs 0 0 not defined not defined Applying the Cost-Benefit Principle, his best choice is to work 4 days. This gives him a Total Economic Surplus of =85. Now suppose that his output is taxed at a rate of 40% => he only gets to keep (.6)(output). It follows that his Total Benefits and Marginal Benefits are now lowered to the following levels: Days Worked Total Benefits Marginal Benefits Marginal Cost Total Costs 0 0 not defined not defined Application of the Cost-Benefit Principle now identifies 3 days worked as the optimal choice. This illustrates the Incentive Principle since he chooses to engage in less of the activity after its benefits have decreased. Further note that his realized maximum Total Economic Surplus has decreased to 84 60=24 as a result of this policy.
3 Problem: 1. The following table summarizes Jason s Total Benefit from consumption of pizza per month (measured in dollars). Pizzas Consumed Total Benefits from Consumption A. Determine Jason s Marginal Benefit for each of the first six pizzas he consumes. 1B. If each pizza costs $16, how much should Jason consume? What is the value of his Economic Surplus from this level of consumption? Explain. 1C. If each pizza costs $8, how much should Jason consume? What is the value of his Economic Surplus from this level of consumption? Explain. 1D. Are your answers to parts (b) and (c) consistent with or inconsistent with the Incentive Principle? Explain. Multiple Choice Questions: 1. The Incentive Principle states that A. a society can produce a greater amount of total output when individuals focus their production on those activities for which they have a comparative advantage. B. having more of one thing usually means getting by with less of something else. C. an action should be taken if and only if the additional benefits from taking the action are at least as great as the additional costs of doing so. D. if the marginal benefit of an activity increases, then a rational person will engage in more of the activity. 2. In 2015 High School graduates earned $11,037 per year more than non-high School graduates. If this difference had instead been $8,500 per year, then we would expect A. more people to drop out of school before graduating High School. B. fewer people to drop out of school before graduating High School. C. that nobody would change their behavior. D. more children to start eating breakfast at school. 3. Consider the following two statements. Statement 1: The U.S. should restrict employers from outsourcing work to foreign countries. Statement 2: A ceiling on rents reduces the quantity and quality of available housing. Most economists would A. disagree with both Statement 1 and Statement 2. B. agree with Statement 2, but disagree with Statement 1. C. agree with Statement 1, but disagree with Statement 2. D. agree with both Statement 1 and Statement 2.
4 4. Economics is A. the social science that studies human mental functions and behavior, with a focus on phenomena such as perception, cognition, personality, and interpersonal relationships. B. the social science that studies decision making in the face of scarcity and the resulting impact of such decisions on both society as a whole and on the individual members therein C. the social science that studies the allocation and transfer of power in decision-making, systems of governance, and the effects of public policy. D. the art of communicating financial information about a business entity to stakeholders, such as employees, managers, shareholders, and customers. 5. In July 2012 professional golfer Adam Scott bogeyed the last four holes of the British Open to lose the tournament to Ernie Els by one stroke. Around the same time flooding in Beijing, China resulted in the death of at least 77 people. If Adam was more upset about the outcome of the British Open than about the loss of life from the flooding in Beijing, then it would seemingly suggest that he A. is not as good of a person as Ernie Els. B. does not care about anyone other than himself. C. is an irrational individual. D. is a self-interested individual. 6. John recently saw the comedian Ron White perform at the Topeka Performing Arts Center in Topeka, KS. His Total Benefits from seeing this show were $120, while his Total Costs were $70. From this information, it follows that his Economic Surplus A. from attending the show was ($120) ($70) = ($50). B. from attending the show was ($70) ($120) = ($ 50) (i.e., negative $50). C. from attending the show was ($70)+($120) = ($190). D. would have been greater if he had instead spent the $120 on Ron White DVDs. 7. Normative Statements A. attempt to describe how the world actually is or actually functions. B. are scientific in nature, in that given enough research, evidence, and data, they can potentially be shown to be either true or false. C. are supported (either implicitly or explicitly) by the priorities, goals, and value judgments of the person making the statement. D. More than one (perhaps all) of the above answers is correct. 8. A Rational Decision Maker should A. always take every action for which there is a positive Marginal Benefit. B. never take any action for which there is a positive Marginal Cost. C. take an action if and only if the Marginal Benefit of the action is at least as great as the Marginal Cost of the action. D. More than one (perhaps all) of the above answers is correct.
5 9. The quote on page 17 of the course textbook suggests that Milton Friedman believed that Mother Theresa was A. rational and self-interested. B. rational but not self-interested. C. irrational and not self-interested. D. irrational but self-interested. Answer Questions 10 and 11 based upon the information conveyed in the following graph (which illustrates the Marginal Cost and Marginal Benefit of an activity for a decision maker): $ MB Q 1 Marginal Cost MC Q 1 0 Q 0 Q 1 Q 2 Q 3 Q Q Total Benefits (i.e., Total Benefits, not Total Economic Surplus) are maximized at A. Q 2 B. Q 3 C. Q 4 D. Q If the decision maker increased the amount which she was engaging in the activity from Q 3 to Q 4, then A. Total Costs would increase, but Total Benefits and Total Economic Surplus would both decrease. B. Total Costs and Total Benefits would both increase, but Total Economic Surplus would decrease. C. Total Costs, Total Benefits, and Total Economic Surplus would all increase. D. Total Costs, Total Benefits, and Total Economic Surplus would all decrease. Marginal Benefit
6 12. Which of the following statements is a Positive Statement? A. Elvis Presley died on August 16, B. The possession and use of all recreational drugs should be legal. C. Our country would be a better place to live if we decreased spending on national defense and increased spending on healthcare for low income families. D. More than one (perhaps all) of the above answers is correct. 13. The Cost-Benefit Principle states that A. a society can produce a greater amount of total output when individuals focus their production on those activities for which they have a comparative advantage. B. a person should take an action if and only if the additional benefit of doing so is greater than or equal to the additional cost of doing so. C. a person is more likely to take an action if its benefits rises, and less likely to take an action if its cost rises. D. having more of one thing usually means having less of something else. 14. Mike Ditka s suggestion that football related injuries could likely be reduced by have participants play without helmets (or at least without facemasks on their helmets) A. does not make any sense whatsoever when analyzed using the tools of economics. B. implicitly assumes that football players are irrational. C. earned him the Nobel Prize in Economics in D. relies heavily upon the Incentive Principle. 15. Andrea has $75 to spend and wants to purchase either a new amplifier for her guitar or a new MP3 player. Each good costs exactly $75, so she can only purchase one of the two items. This scenario illustrates the basic concept that A. people face tradeoffs. B. most consumers are irrational. C. rational people never respond to incentives. D. free market systems generally do a very poor job of allocating consumption goods. 16. Armen Alchain and Gordon Tullock A. wrote a letter to FDR in 1939, advising him to have the U.S. government assist physicists in the U.S. working on research related to the creation of a uranium bomb. B. were the first to recognize that increasing the minimum wage would decrease the unemployment rate of young and unskilled workers. C. argued that automobile accident rates could be decreased by installing five point harness seat belts and improved airbags in every car. D. argued that automobile accident rates could be decreased by installing a sharp, irremovable, foot long, iron spike to the steering wheel of every car.
7 17. Paula enjoys going to the movies. In July she saw 8 movies in the theatre. Her Marginal Benefit of the 8 th movie was $16, while her Marginal Cost of the 8 th movie was $12. Based upon this information alone, her Economic Surplus A. would have been smaller if she had instead gone to the movies 7 times. B. would have been larger if she had instead gone to the movies 7 times. C. was clearly maximized by going to the movies exactly 8 times. D. would have been larger if she had instead gone to the movies 9 times. 18. is the branch of economics which studies how individual decisionmakers behave and interact with each other, often with a focus on how households and firms behave and interact with each other in markets. A. Macroeconomics B. Microeconomics C. Comparative Economic Systems D. Political Science 19. A Self-Interested person A. does not care about the well-being of anyone (including himself). B. cares only about his own well-being (and does not care at all about the well-being of others). C. cares about his own well-being more than the well-being of others. D. cares about the well-being of others more than his own well-being. 20. When considering potential government policies, it is important to recognize that A. most businesses are not run by rational decision makers. B. voluntary trade generally makes sellers better off but buyers worse off. C. if a policy alters the costs and/or benefits for a decision maker, then the decision maker might change his behavior as a result of the policy. D. voters are self-interested but politicians are not. Answer Questions 21 and 22 based upon the information conveyed in the following table, which states Ann s Total Benefits from consumption of iced coffee per week (measured in dollars): Cups of Iced Coffee Consumed Total Benefits from Consumption It appears as if Ann has a for iced coffee consumption. A. constant marginal benefit B. increasing marginal benefit C. diminishing marginal benefit D. negative marginal benefit 22. If iced coffee costs $2.25 per cup, then Ann should consume cups per week. A. 0 B. 4 C. 6 D. 7
8 Answers to Problem: 1a. Jason s Marginal Benefit from increasing his consumption of pizza refers to the increase in his Total Benefit which resulting from consuming an additional pizza. For each level of consumption, Marginal Benefit is simply equal to the current Total Benefit minus the Total Benefit which would be realized if one fewer unit were instead consumed. From the given information we can calculate his Marginal Benefit at each level of consumption as: Number of Pizzas: Total Benefit: Marginal Benefit: 0 0 undefined = = = = = = = b. If each pizza costs $16, then the Marginal Cost of each unit is a constant $16. As a result, when we apply the Cost-Benefit Principle, we see that he should consume 3 pizzas per month (since MB is greater than MC for the first three units consumed, while MB is less than MC for units beyond the third unit). This level of consumption gives him Total Benefits of $90 and Total Costs of $48, making his Economic Surplus $42 (90-48=42). 1c. If each pizza instead costs $8, then the Marginal Cost of each unit is now a constant $8. As a result, when we apply the Cost-Benefit Principle, we see that he should consume 5 pizzas per month (since MB is greater than MC for the first five units consumed, while MB is less than MC for units beyond the fifth unit). This level of consumption gives him Total Benefits of $115 and Total Costs of $40, making his Economic Surplus $75 (115-40=75). 1d. Recall that the Incentive Principle implies (in part) that a person is more likely to take an action if the costs of doing so decrease. From parts (b) and (c) we observe that when the cost of a pizza decreased (from $16 to $8), Jason s consumption of pizza increased (from 3 pizzas to 5 pizzas). Thus, the answers to parts (b) and (c) are consistent with the Incentive Principle.
9 Answers to Multiple Choice Questions: 1. D 2. A 3. B 4. B 5. D 6. A 7. C 8. C 9. A 10. D 11. C 12. A 13. B 14. D 15. A 16. D 17. A 18. B 19. C 20. C 21. C 22. C
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