北京大学经济学原理作业.doc

经济学原理 第一次作业 学号 院系 姓名 成绩 1. Economic choice and competitive behavior are the result of a. basic human greed. b. poverty. c. private ownership of resources. d. scarcity. 2. Adam Smith argues in the Wealth of Nations that an economy will produce more goods and services if a. people act in the public interest than if they act selfishly. b. people act selfishly, than if the government directs economic activity. c. the government controls the use of the nations scarce resources. d. people ignore their own interests and contribute to national wealth as a whole. 3. Which one of the following is a positive economic statement? a. An increase in the minimum wage will reduce employment. b. The minimum wage should be raised to reduce poverty. c. Social conscience demands that we increase the minimum wage. d. Thoughtful people oppose an increase in the minimum wage. 4. The cost to Air China of letting its employees fly at no charge a. is zero. b. will depend on the value employees place upon travel. c. is greater during the Spring Festival than at most other times. d. depends on the alternatives open to the employees. 5. Suppose you are considering going to the movies, and you place a RMB12 value on your anticipated enjoyment of the movie. The ticket price is RMB 6 and you would be giving up two hours of work, where you earn RMB5 per hour. You would go to a. work; the total cost of the movies exceeds the expected benefit. b. the movies; your incentive is the RMB6 excess expected benefit. c. the movies; your enjoyment will exceed the lost wages by RMB2. d. the movies; the benefit of RMB18 exceeds the lost wages. 6. Which of the following would most likely increase the demand for peanut butter? a. a decrease in the price of bread, a good that is often used with peanut butter b. a discovery that the average daily consumption of peanut butter decreases ones life span by