International Monetary Fund (IMF) Managing Director Christine Lagarde (C) attends the special forum preceding the 2012 Annual Meetings of the IMF and World Bank Group in Tokyo July 6, 2012. The two main concerns for Japan's economy are a further appreciation of the yen and the risks posed by Europe's debt crisis to demand for Japanese exports, the head of the International Monetary Fund said on Friday. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: BUSINESS EMPLOYMENT)