貌似我们做的作业是同一道题……
我也在纠结中……(#‘′)凸
terms of trade or TOT is the relative prices of a country's export to import.
An improvement in a nation's terms of trade (the increase of the ratio) is good for that country in the sense that it has to pay less for the products it imports.That is,it has to give up fewer exports for the imports it receives.