Exchange Rate Exchange Rates Intervention Depreciation Yen-buying Intervention Yen Falls Yen Rises Yen Weakens Yen-selling Intervention Japanese Authorities Japanese Finance Minister Currency Exchange Rate Value Fluctuations Volatility Yen Devaluation Market Movements USD/JPY Exchange Rate USD Hedge Funds Bank of Japan Market Performance Market Factors Dollar Weakness Safe Haven Market Pressure Monetary Policy Market Reactions US Dollar Interest Rates Japanese Authorities Intervention Fall Banknotes