The U.S. move to additionally scale back its bond purchase is within an expected range and its impact on the Korean economy will be "limited," the finance ministry said Thursday. The remarks came after the U.S. Federal Reserve decided to cut its bond-purchasing program from US$65 billion to $55 billion starting next month. It marks the third time that the Fed has decided to ease up on its quantitative easing put in place to boost its economy by pumping money into the market.