WASHINGTON - The International Monetary Fund (IMF) warns risks are "rotating" to emerging economies in its Global Financial Stability report. The report notes improved overall stability but lists three key challenges facing global policy makers. The IMF releases the stability report twice a year before its Spring and Annual Meetings following its World Economic Outlook report which the fund released yesterday. In that report the IMF reduced growth projections and warned of rising debt levels. The IMF/World Bank Meetings begin in Lima, Peru at the end of this week.