The monetary policy rules in EU-15: before and after the euro

The objective of this paper is to identify empirically the logic behind short-term interest rates setting of: 1) the monetary authorities of the 15 EU countries before the launch of the European Monetary Union (EMU) and 2) the European Central Bank (ECB) and the central banks of the non-EMU participants since 1999. We find that the Taylor rule, based on the response to inflation and to the output gap, is a reasonable description of the interest rate setting for only a few economies. In addition, the foreign interest rate and the long-term interest rate are often crucial to explain short-term interest rate developments. On the contrary, the impact of other variables often proposed in the literature (exchange rates, monetary growth and asset prices) is negligible. The application of singleequation analysis to Euro area aggregate data to identify the ECB policy rule seems to suffer econometric deficiencies. Besides, we find some evidence indicating that the ECB considers also national information for its decision-making and consequently that the ECB interest-rate rule can be revealed in quasi-panel setting.