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一道英文微观经济题The Rail Transport Authority receives the following

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一道英文微观经济题
The Rail Transport Authority receives the following two pieces of expert advice:
1.“You should cut rail fares in order to encourage greater use of rail travel.Raising fares will mean fewer customers and lower revenue.”
2.“You cannot afford to cut fares as this will reduce your revenues”
(a) What does each of these pieces of advice assume about the elasticity of demand for rail use?Draw a diagram to explain your answer.
(b) How might an economist seek to resolve the conflict of opinion?
第一条是elastic,当价格减少,需求相应的增多.Total revenue will increase.
第二条是inelastic的情况,价格家少,Total revenue will decrease.
画图就按照教科书上的elastic和inelastic的图来画.
b的答案最基本的就是看价格变化时elastic还是inelastic.从微观的家督看我觉得就是这样.
不对的还请指教