HONG KONG : The Hong Kong Monetary Authority left its base rate unchanged at 4.75 per cent on Thursday, tracking a move by the U.S. Federal Reserve to keep rates steady. Hong Kong's monetary policy moves in lock-step with the United States as the city's currency is pegged to the greenback in a tight range of 7.75-7.85 per dollar. "The policy decision is in line with market expectations. However, the pace of future rate cuts remains uncertain," HKMA said in a statement on Thursday. "Interest