17题: Suppose there are only two countries:the domestic and the foreign.The real exchange rate between the two countries is e , which is the number of foreign goods that can be obtained in exchange for one unit of domestic good .The nominal exchange rate between the two countries is en ,which is the number of unit of foreign currency that can be purchased with one unit of the domestic currency.Let the domestic income be Y ,the domestic real interest rate r ,the domestic price level P,the foreign income Yf, the foreign real interest rf, and the foreign price level PF.e can written as e=a+by+cYF+dr+grf where, a,b,c,d,g are constant, and the relationship between e and en is en=eP(上标h)pf(上标j) where h and j are constants. the exchange rate is flexible 题目:For given P and PF two of the four constants b,c,d,g , are postive, what are they? 想请问这题题目的意思是? 完全不知道该怎麽下手作答? --

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