标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1. Name two macroeconomic variables that decline when the economy goes into a recession. Name one macroeconomic variable that rises during a recession.写出当经济衰退时,下降的两个宏观经济参数,上升的一个宏观经济参数。
答:实际GDP下降,投资下降。失业率上升。
2. Draw a diagram with aggregate demand, short-run aggregate
supply, and long-run aggregate supply. Be careful to label the axes
correctly.
答:

3. List and explain the three reasons why the aggregatedemand curve
is downward sloping.
答:首先,价格水平降低,由于财富效应,导致人们消费更多,使总需求上升。其次,利率效应,较低的价格水平,使利率降低,促进了投资,投资带动需求。第三,汇率效应,
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1. What is the role of the financial system? Name and describe
two markets that are part of the financial system in our economy.
Name and describe two
financial intermediaries.
答:金融体系是将储蓄和投资匹配起来。 金融系统的两个市场是债券市场,通过这个市场,大公司,联邦政府、州政府和地方政府借钱。另外一个市场就是股票市场,公司通过这个市场出售他们的股份。 两种金融媒介是银行,吸收存款和放贷。另外一个金融媒介是共同基金,通过对公众出售其股份用得到的钱去组合投资金融资产。
2. Why is it important for people who own stocks and bonds
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1. What does the level of a nation’s GDP measure? What does the growth rate of GDP measure? Would you rather live in a nation with a high level of GDP and a low growth rate, or in a nation with a low level and a high growth rate? 一国的GDP水平衡量什么?GDP增长率衡量什么?你愿意生活在一个高GDP,低GDP增长率国家,还是低GDP,高GDP增长率国家?
答:一国经济总收入或总支出。GDP反映一个经济的繁荣水平,而GDP增长率反映一个经济的发展快慢。
2. List and describe four determinants of productivity生产率.
答:实物资本,包括设备厂房等。
3. In what way is a college degree a form of capital? 大学学位是哪种
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1. A consumer has income of $3,000. Wine costs $3 a glass, and
cheese costs $6 a pound. Draw the consumer’s budget constraint.
What is the slope of this budget
constraint?
答:斜率是-0.5
2. Draw a consumer’s indifference curves for wine and cheese. Describe and explain four properties of these indifference curves.
答: 高处的无差异曲线优于低处
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1. Explain how a firm’s production function is related
of its marginal product, and how a firm’s value of marginal product
is related to its demand for labor.
解释一个企业的生产函数如何与其劳动力的边际产量相关,一个企业的劳动力边际产量如何与其边际产量价值相关,以及一个企业的边际产量价值如何和劳动力需求相关。
答:一个企业的生产函数,描述生产活动中,劳动力的使用量和产品产量之间的关系。劳动力的边际产量是增加一个单位的劳动力,引起的产量增加。这样,劳动力的边际产量直
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
9. The Placebo Drug Company holds a patent on one of its discoveries.
a. Assuming that the production of the drug involves rising
marginal cost, draw a diagram to illustrate Placebo’s
profit-maximizing price and quantity.
Also show Placebo’s
profits.假设药品生产引起边际成本增加,画图说明该公司利润最大化价格和产量。也说明其利润。
答:利润最大化产量Q1,利润最大化价格P1,利润额=(P1-AC1)x Q1.

b. Now suppose that the government imposes a tax on each bottle of
the drug produced. On a new diagram, illustrate Placebo’s new price
and quantity. How does each compare to your answer in
标签:
杂谈 |
分类: 《经济学原理》习题选答 |
复习题:
1,Explain how absolute advantage and comparative advantage differ. 绝对优势和比较优势区别。
答案:绝对优势反映一个人、公司或国家与另外一个人、公司或国家相比,其生产率水平的高低。
2,Give an example in which one person has an absolute advantage in doing something but another person has a comparative advantage. 举出一例,说明某人有绝对优势做一些事情,而另一个人则有比较优势。
答案:小李和小张都是修理工。小李每天可修理10台电视机,或20台洗衣机。而小张每天能修理15台电视机或30台洗衣机。