自2012年10月初以来,日元一直呈现大幅下跌走势,目前其贬值幅度已经达到20%。在2012年10月5日至2013年2月18日这几个月的时间里,美元兑日元收盘价已经从78.65升至93.6,创下2009年第一季度以来的最大波幅。日元短期内如此急速下跌,已引起国际社会的广泛关注,加之,近期日本量化宽松货币政策的实施,欧美宽松货币政策的延续,一时间货币战争的观点被推上舆论的浪尖。G20会议对日本的宽容和对非日元 The yen has been falling sharply since the beginning of October 2012 and has now depreciated by 20%. During the months between October 5, 2012 and February 18, 2013, the dollar’s closing price against the yen has risen from 78.65 to 93.6, its highest level since the first quarter of 2009. The rapid fall of the yen in the short term has drawn wide attention from the international community. In addition, the recent monetary easing in Japan and the continuation of loose monetary policies in Europe and the United States have pushed the notion of a currency war to the forefront of public opinions. G20 meeting of Japan’s tolerance and resistance to the yen