问题：Suppose that short-term interest rates fall in Japan.Is this likely to be good news or
bad news for the tourism industry in Hawaii?
答案：Good news, unless short-term real interest rates decline in the United
States as well. If short-term real interest rates in Japan fall relative
to short-term real interest rates in the United States,
the value of the yen should decline relative to the dollar. This will lower
the yen price of vacations in Hawaii.
我知道日本短期利率下降会让日圆贬值，但日圆贬值不是会让日圆在美国的购买力下降吗？
为什么对夏威夷的旅游业是好消息？
想了很久还是搞不懂><拜托大家了