課程名稱︰經濟學原理與實習二 課程性質︰必修兼通識A5 課程教師︰林明仁 開課學院：社科 開課系所︰經濟系 考試日期（年月日）︰98年4月17日 考試時限（分鐘）：180分鐘 是否需發放獎勵金：是 （如未明確表示，則不予發放） 試題 : 　　　　　　　　　　經濟學原理II期中考 　　　　　　　　2009/04/17 總分100分　　　　　　　　　　　　　　　　　　　　　　　　　　授課教師　林明仁 一、選擇題（每題皆須附上說明，否則不予計分）（40 points） 　　(Short interpretation is required.) 1. A dentist shares an office building with a radio station. The electrical current from the dentist's drill causes static in radio broadcast,causing the radio station to lose $10,000 in profits. The radio could put up a shield at a cost of $30,000; the dentist could buy a new drill that causes less interference for $6,000. Either would restore the radio station lost profits. What is the economically efficient outcome? a. The radio station puts up a shield, which it pays for. b. The radio station puts up a shield, which the dentist pay for it. c. Neither the radio station nor the dentist purchase additional equipment. d. The dentist gets new drill; it does not matter who pay for it. 2. To increase safety at a bad intersection, you must decide whether to insti -ll a trafic light in your hometown at a cost of $10,000. If the trafic light reduces the risk of fatality by 0.5 percent, and the value of a human life is estimated to be $10 million, you should a. instill the light because the expected benefit of $50,000 is greater than the cost. b. instill the light because the expected benefit of $20,000 is greater than the cost. c. not instill the light because the expected benefit of $10,000 is equal to the cost. d. not instill the light because the expected benefit of $5,000 is less than the cost. Scenario 1 Suppose that a society is made up of five families whose incomes are as fol -lows: $150,000 ; $90,000 ; $39,000 ; $24,000 ; $15,000. The federal government is considering two potential income tax plans: Plan A is a negative income tax plan where the taxes owed equals 1/3 of income minus $15,000. Plan B is a two-third plan where the poverty line is $35,000; families earning over $35,000 pay 10% of their income in taxes, and families earnings less than $35,000 pay no income tax. 3. Refer to Scenario 1. Assuming that utility is directly proportional to the cash value of after-tax income, which government policy would an advocate of utilitarianism prefer? a. Plan A. b. Plan B. c. either Plan A or Plan B d. neither Plan A nor Plan B because any plan that forcibly restributes inco -me is against the philosophy. 4. You comsume goods X and Y. Your indifference curve are described by Y=K/(X+6). Higher value of K corresponds to higher utility level. Which of the following is true ? a. You prefer the bundle (X,Y)=(13,8) to bundle (8,13). b. You prefer the bundle (X,Y)=(7,10) to bundle (10,7). c. You have the same preference of the bundle (X,Y)=(13,8)and the bundle (8,13). d. Both a. and b. are correct. 5. Any points on demand curve represents a. individual's maximized income. b. individual's maximized marginal utility. c. individual's maximized total utility. d. no relationship with consumer choice. 6. The U.S. Air Force pays a Turkish citizen $30,000 to work on a U.S. base in Turkey. As a result, a. U.S.government purchases increase by $30,000; U.S. net exports decrease by $30,000; and U.S. GDP and GNP are unaffected. b. U.S.government purchases increase by $30,000; U.S.GNP increase by $30,000 ;and U.S.GDP and U.S. net exports are unaffected. c. U.S.government purchases; and U.S. net exports,GDP,and GNP are unaffected. d. U.S.government purchases increase by $30,000; U.S. net exports decrease by $30,000; U.S. GNP increase by $30,000; and U.S. GDP is unaffected. 7. Renee earned a salary of $60,000 in 2001 and $80,000 in 2006. The comsumer price index was 177 for 2001 and 221.25 for 2006. Renee's 2006 salary in 2001 dollars is a. $45,198;thus, Renee's purchasing power decreased between 2001 and 2006. b. $64,000;thus, Renee's purchasing power increased between 2001 and 2006. c. $69,000;thus, Renee's purchasing power decreased between 2001 and 2006. d. $75,000;thus, Renee's purchasing power increased between 2001 and 2006. 8. Consider three different closed economies with the following national inco -me statistics. Contry A has taxes of $40 billion and government expenditu -res on goods and services of $50 billion. Country B has private savings of $60 billion, and investment expenditures of $50 billion. Country C has GDP of $300 billion, investment of 50 billion, consumption of $ 180 billion, taxes of $60 billion. From this information we know that there is a $10 bil -lion deficit for a. only country A. b. only country B. c. only country C. d. all three contries. 9. Alice says that the present value of $700 one year from today if the inter -est rate is 6 percent is less than the present value of $700 two years from today if the interest rate is 3 percent. Beth says that $700 saved for one year at 6 percent interest has a smaller future value than $700 saved for two years at 3 percent interest. a. Both Alice and Beth are correct. b. Both Alice and Beth are incorrect. c. Only Alice is correct. d. Only Beth is correct. 10.President Obama is running for re-election aganist Senator Pander. Obama proclaims that more people are working now than when he took office. Pander says that unemployment rate is higher now than when Obama took office. You conclude that a. one of them must be lying. b. both of them could be telling the truth if the labor-force paricipation rate and the labor-force both fell. c. both of them could be telling the truth if the labor-force grew slower than employment. d. both of then could be telling the truth if the labor-force grew faster than employment. --

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