想请问这学期有修黄鸿老师贸易政策的同学 作业二第5题 需求不是linear(如 P=a-b(q+q*) ) 而是P=f(q+q*)的形式时 要怎麽做啊? 作业一好像也有类似的题目 但是我实习课有其他课不能到......所以还是不知道该怎麽做 希望有好心的同学能给我点提示 以下是题目 Assume　there are two firms- Home and Foreign, producing a homogeneous product and exporting all their outputs to a third country. The marginal costs of the Home and Foreign firms are respectively c and c* and their outputs q and q*. Moreover, the demand for the product in the third country is: P=a-bQ where P is the price and Q is the output defined as q+q*. Use the above setting to answer the following questions. 1. If the two firms play Cournot, derive the equilibrium price and the outputs of the two firms. 2.3.4.略 5.Instead of the linear demand, let us assume the demand to be implicit and take the following form: P=f(q+q*). Ditto 1-4. 我愚蠢的想法 第一题的home firm的 reflection function c - f(q+q*) 变成 RF(q*) = q =------------- f'(q+q*) 应该不是这样吧? 这样求不出equilibrium output and price啊......@@ 谢谢 --

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