Ch 1 &4 - Textbook Questions Answers(from the...

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Textbook Questions Answers (from the Publisher) Ch 1 Questions for Review 1. Examples of trade-offs include time trade-offs (such as studying one subject over another or studying at all compared to engaging in social activities) and spending trade-offs (such as whether to use your last 15 dollars to purchase a pizza or to buy a study guide for that tough economics course). 2. The opportunity cost of seeing a movie includes the monetary cost of admission plus the time cost of going to the theater and attending the show. The time cost depends on what else you might do with that time; if it is staying home and watching TV, the time cost may be small, but if it is working an extra three hours at your job, the time cost is the money you could have earned. 3. The marginal benefit of a glass of water depends on your circumstances. If you have just run a marathon or you have been walking in the desert sun for three hours, the marginal benefit is very high. But if you have been drinking a lot of liquids recently, the marginal benefit is quite low. The point is that even the necessities of life, like water, do not always have large marginal benefits. 4. Policymakers need to think about incentives so they can understand how people will respond to the policies they put in place. The text's example of seat belt laws shows that policy actions can have unintended consequences. If incentives matter a lot, they may lead to a very different type of policy; for example, some economists have suggested putting knives in steering columns so that people will drive much more carefully! While this suggestion is silly, it highlights the importance of incentives. 5. Trade among countries is not a game with some losers and some winners because trade can make everyone better off. By allowing specialization, trade between people and trade between countries can improve everyone's welfare. 6. The "invisible hand" of the marketplace represents the idea that even though individuals and firms are all acting in their own self-interest, prices and the marketplace guide them to do what is good for society as a whole.
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7. The two main causes of market failure are externalities and market power. An externality is the impact of one person’s actions on the well-being of a bystander, such as from pollution or the creation of knowledge. Market power refers to the ability of a single person (or small group of people) to unduly influence market prices, such as in a town with only one well or only one cable television company. In addition, a market economy also leads to an unequal distribution of income. 8. Productivity is important because a country's standard of living depends on its ability to produce goods and services. The greater a country's productivity (the amount of goods and services produced from each hour of a worker's time), the greater its standard of living will be. 9.
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This note was uploaded on 11/21/2010 for the course DSE 4010 taught by Professor Chiu during the Spring '10 term at 한동대학교.

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Ch 1 &4 - Textbook Questions Answers(from the...

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