Prices for U.S. imports and exports fall in June WASHINGTON (Reuters) - Prices for U.S. imports and exports fell in June for the fourth straight month, a sign of cooler economic growth worldwide that could weigh on the American economy and unnerve policymakers. Export prices fell by 0.1 percent, matching the expectation in a Reuters poll, Labor Department data showed on Thursday. The drop probably reflects weakness in global demand which has been hit by Europe's debt crisis and slowing growth in China. However, some economists are worried an environment of weak inflation could raise the specter of deflation. That would be very bad, as deflation entails a spiral of falling prices and wages which is very difficult for central banks to fight. Economists polled by Reuters had expected import prices to be unchanged last month.