在大多数发展中国家,年轻人占总人口的比例要大于多数发达国家。但是,发达国家的储蓄率却往往高于欠发达国家的储蓄率。试讨论这种情况如何与年轻人倾向于比老年人多储蓄的假说相统一。 In most developing countries.the share 0f young people in the total population is larger than in most developed countries.However.developed countries tend to have higher saving rates than do less developed ones.Discuss how this observation may be reconciled with the hypothesis that the young tend to save more than the old.
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找出以下情况下的总供给曲线: a.生产函数为Q=3LK,劳动需求为LD=10—2w/P,劳动供给为Ls=4w/P,经济的资本存量固定于K=4的水平。 b.a中所得到的总供给曲线所代表的是古典状况、基本凯恩斯学派状况,还是极端凯恩斯学派状况? c.如果名义工资固定在3,那么a和b的答案会有什么变化? Find the aggregate supply curve when a.The production function is Q=3LK,labor demand is LD=10—2w/P,labor supply is LS=4w/P.and capital stock in the economy is fixed at K=4. b.Is the aggregate supply curve you derived in(a)representative of the classical,basic Keynesian,or extreme Keynesian cases? c.How would your answers to(a)and(b)change if the nominal wage were fixed at 3?
劳动的边际生产率(marginal productivity of labor)
假定A国对最终产品的需求很稳定,B国的需求则变动很大。根据平滑生产的存货理论,哪一国有可能出现较高的存货投资? Suppose thalt country A has a’very stable demand for final products.while country B’s demandvaries significantly.According to the production—smoothing theory of in’ventories.which country is likely to haVe higher inventory investment?