简述货币政策的效力。
参考答案：货币政策的效力主要体现在货币供给的变化上。扩张性货币政策是货币供给增加；紧缩性货币政策是货币供给减少。一项扩张性货币政策如果在货币供给的增加时使利率下降的幅度很大，并且对投资有很大的刺激作用，它对总需求的影响就很大。如果投资需求对利率的敏感程度很低，利率的下降不会使投资受到很大的刺激；如果货币需求对利率的敏感程度很高，货币供给的增加并不能使利率下降很大。
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| Do you love sports? Why not come down to the Olympic Sports Center 1 your family? At the Olympic, you can do almost 2 sport you like! Outdoors, there 3 a baseball field, two football fields, and a 4 running track. Also, there are three tennis courts. You 5 run and you can do the shot put, the long jump, and the high jump. And you can play baseball, football and tennis, 6 ! Indoors, you can go 7 on the ice rink or skateboarding and 8 baseball and volleyball on special courts. There are 9 pools: a large pool for swimming and also a deep pool for diving. Also indoors, there are two gyms. You can 10 or play tennis there. |
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