The impact of US monetary policy spreads across the entire global economic architecture. Fund flows to emerging markets are directly proportional to interest rate differentials. This is logical, as investors seeking higher returns, move funds out of the United States. More recently, the Reserve Bank of India defied market hopes, leaving interest rates unchanged. Logically, therefore, we should expect greater stability in the value of the rupee, as in the values of the other emerging market currencies. The half per cent point reduction now places the Fed fund rate to be between 4.75% and 5%. The shift in the Fed’s stance towards monetary easing, suggests that inflation is firmly under control, or so the central bank would like to believe. 

This podcast explains.