Volume 7, Issue 1

This paper estimates the policy reaction function of the European Central Bank in the first four years of EMU using an ordered probit model which accounts for the fact that central bank rates are set at multiples of 25 basis points. Starting from a baseline model which mimics the Taylor rule, the impacts of different economic variables on interest rate decisions are analysed. It is concluded that the monetary growth measure which was announced by the ECB as the first pillar of their monetary strategy does not play an outstanding role for the actual interest rate decisions. More sophisticated measures like the money overhang which uses information from both pillars are better suited. Overall, it is concluded that the revision of the monetary policy strategy in May 2003 which implied a downgrading of the first pillar will not induce any observable changes in monetary policy decisions.

We study simple inflation-forecast targeting in an open-economy setting. Simple inflation-forecast targeting implies setting an interest rate which, if kept unchanged throughout the forecast-targeting horizon, produces a conditional inflation forecast equal to the inflation target at the end of the horizon.We find that the optimal forecast-targeting horizon is relatively short (one year). A longer horizon does not consistently contribute to improved output stability, indeed it increases exchange rate variability and traded sector variability. The targeting procedure is substantially inferior to the optimal pre-commitment policy. Moreover, the targeting procedure does not necessarily determine the rational-expectations equilibrium and is subject to time inconsistency.

Starting from the quantity theory of money we analyse the dynamic relationships between money, real output and prices for an unbalanced panel of 110 economies. Complementary to trivariate analyses we also adopt a P-star model explaining inflation via an equilibrium price level ( P-star), which in turn depends on potential output and money. A key issue of the paper is the cross-sectional stability of estimation and inference results. We find cointegration among the considered variables. Particularly for high inflation countries homogeneity between prices and money cannot be rejected. Given homogeneity we find evidence for an error-correction mechanism linking current price changes and the lagged price gap. Parameter estimates indicating the adjustment towards the price equilibrium are larger in absolute value for high inflation countries. The latter results indicate that central banks, even in high inflation countries, can improve price stability by controlling monetary growth.

We present a non-scale continuous-time overlapping-generations growth model that provides an explanation for why economies with relative wage rigidity feature higher unemployment, but not slower productivity growth, than economies with flexible wages. The compression of the wage distribution associated with relative wage rigidity slows down human capital accumulation and growth ceteris paribus. But unemployment among the low-skilled workers strengthens the incentives to invest in human capital and, hence, growth. The two effects are offsetting, and growth is independent of the prevailing degree of relative wage rigidity. This knife-edge result is robust with respect to some modifications of the model.

This paper evaluates the role of preference shocks during the Great Depression in Germany. From Euler equation residuals, I am able to identify a series of contractionary shocks that struck the German economy from 1929 to 1932. I apply the sequence of these taste innovations to a dynamic general-equilibrium model and find that the size and the order of shocks can generate a pattern that can explain the lion’s share of the decline in economic activity. The artificial economy also predicts a swift recovery after 1932, thereby questioning any significant effects of Nazi economic policy.