IMF (International Monetary Fund, referred to as the IMF) on Wednesday questioned South Korea's exchange rate policy, told South Korea only in the case of exchange rate fluctuations could endanger the economy was to be shot on the foreign exchange market intervention. Before the IMF exchange rate policy in Korea made a rare public criticism of the Bank of Korea (Bank of Korea) is a senior official has hinted at the beginning of the line ready to intervene in currency markets to curb the won gains. U.S. Treasury (Treasury Department) also said last year, the behavior of the Korean currency intervention to restore worried that South Korea should improve the transparency of interventions. IMF Executive Board in the annual assessment of the Korean economy, said the report, the Korean won exchange rate should continue to be determined by the market, government intervention should be limited to stabilize the market, disorderly fluctuations. IMF said that, taking into account inflation, the won slightly lower valuation. However, due to many emerging markets outperformed developed markets, the appreciation of the Korean won is facing increasing pressure from the market. South Korean officials said their intervention to stabilize the market. But some economists pointed out that the United States, South Korea hopes to curb the appreciation of the Korean won, thereby preventing the Korean export prices.