微观经济学问题急!
题目
微观经济学问题急!
The following graph illustrates the situation in the dry cleaning market.The marginal social cost of the pollution rises as the quantity of items cleaned per week increases.In addition,there were two demand curves,one for a smaller city,DS,and the other for a larger city,DL.
1) Explain why the marginal social cost curve has a different slope than the marginal private cost curve.
2) What tax per item cleans will achieve economic efficiency in the smaller city?In the larger city?Explain why the efficient tax is different in the two cities.
答案
边际社会成本高于边际私人成本是由于外部不经济的问题吧.征税的数额应该是社会成本与私人成本的差值吧.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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