想請問這學期有修黃鴻老師貿易政策的同學 作業二第5題 需求不是linear(如 P=a-b(q+q*) ) 而是P=f(q+q*)的形式時 要怎麼做啊? 作業一好像也有類似的題目 但是我實習課有其他課不能到......所以還是不知道該怎麼做 希望有好心的同學能給我點提示 以下是題目 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 第一題的home firm的 reflection function c - f(q+q*) 變成 RF(q*) = q =------------- f'(q+q*) 應該不是這樣吧? 這樣求不出equilibrium output and price啊......@@ 謝謝 --

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