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 US Dollar Safe Haven Japanese Authorities Intervention Fall Banknotes