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If the internal rate of return on an investment project is above the market rate of
interest, how would a profit maximising investor react?
a. Increase the capital labour ratio, until the marginal product of capital equals
the market rate of interest.
b. Reduce the capital labour ratio, until the marginal product of capital equals the
market rate of interest.
c. Leave the capital labour ratio unchanged so as to force the market rate of
interest to match the investment project’s internal rate of return.
d. Add to the existing capital stock until the capital labour ratio has risen to a
level where the marginal product of capital equals the market rate of interest.
答案是B 为什么呢？谁来帮我分析一下

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关键词：选择题 Investment investmen interest Marginal investment investor capital product 选择题

not sure what is definition of capital labor ratio but you should be able to analyze this use demand and supply graph

我觉得不是诶 2# patty2010

the capital labour ratio指的是资本劳动比率：即单位劳动力所拥有的资本。
the market rate of interest就是市场利率。
a profit maximising investor：一个寻求利润最大化的投资者。
the internal rate of return on an investment project ：即是一个投资项目的内部收益率。

当资本收益率高于市场利率时表明这一项目是可以获得利益的。更多的我实在是一点头绪都没有。

是否应该选D啊，B是降低资本劳动比，那么资本的边际生产力更高啦，所以B不对。

这俺也知道诶 不管怎么说 谢谢你的评论 4# 13893184868