Emerging Asian central banks are expected to cut interest rates again in the coming months, but economists polled by Reuters are doubtful the moves will significantly boost growth or inflation. Twenty-seven central banks around the world have eased monetary policy in some manner or other so far this year. The Reuters surveys across Asia, which bring the total number of forecasters polled above 300 globally this week, found nearly all central banks in the region, with a few exceptions such as New Zealand and South Korea, were set to ease policy again.