This paper deals with an old issue which nevertheless continues to be of great relevance for central bankers: the impact of monetary policy on the economy. The empirical evidence discussed in the paper suggests that since, over the medium term, inflation is primarily a monetary phenomenon and...

We develop a utility based model of fluctuations, with nominal rigidities, and unemployment. In doing so, we combine two strands of research: the New Keynesian model with its focus on nominal rigidities, and the Diamond-Mortensen-Pissarides model, with its focus on labor market frictions and...