假定供给与需求状况与习题3中描述的一样,但生产不能带来边际社会收益。然而,由于某些政治原因,该国政府认为价值1美元的生产者所得相当于2美元的消费者所得或政府收益。试计算对每单位进口产品征收5个单位的关税给政府目标带来的影响。 Suppose that demand and supply are exactly as described in problem 3 but there is no marginal social benefit to production.However,for political reasons the government counts a dollar's worth of gain to producers as being worth $2 of either consumer gain or government revenue.Calculate the effects on the government's objective of tariff of 5 per unit.