“美国抱怨日本和欧洲的政策是毫无意义的。每个国家为了维护自己的最大利益而制定任何政策。因此，美国不应该抱怨别国的贸易政策；相反，美国应该让各国走自己的路，并且放弃它自己的自由贸易计划而随波逐流。”请讨论上述观点的经济学及政治经济学意义。 “There is no point in the United States complaining about trade policies in Japan and Europe．Each country has a right to do whatever is in its own best interest．Instead of complaining about foreign trade policies，the United States should let other countries go their own way，and give up our own prejudices about flee trade and follow suit.”Discuss both the economics and the political economy of this viewpoint．