你在报纸上看到，加拿大的名义利率是每年12%，而美国是每年8%。假设这两个国家实际利率是相等的，而且购买力平价成立。 a．用费雪方程式，你能对加拿大和美国的预期通货膨胀做出什么推断呢? b．你能对加元和美元之间汇率的预期变动做出什么推断呢? c．一个朋友给你提供了一个迅速致富的计划：从美国银行以8%的利率借钱，然后存入按12%利率支付的加拿大银行，就赚到4%的利润。这个计划错在哪里? You read in a newspaper that the nominal interest rate is 12 percent per year in Canada and 8 percent per year in the United States. Suppose that the real interest rates are equalized in the two countries and that purchasing-power parity holds. a．Using the Fisher equation (discussed in Chapter 4), what can you infer about expected inflation in Canada an in the United States? b．What can you infer about the expected change in the exchange rate between the Canadian dollar and the U.S. dollar? c．A friend proposes a get-rich-quick scheme：borrow from a U.S. bank at 8 percent, deposit the money in a Canadian bank at 12 percent, and make a 4 percent profit. What's wrong with this scheme?