摘要:The traditional economic theory suggests that changes in the money supply or in the interest rates can influence the business cycle, but not the long-run potential output. In other words, monetary policy is neutral over the long-run. In this paper we use some new developments in econometrics to test for the existence of a long-run relationship between the monetary policy instrument used by most Central Banks -short-term interest rates -and real output. Using annual data for 14 emerging and developed countries our results offer overall support for the traditional economic theory