We show diverse beliefs is an important propagation mechanism of fluctuations, money non neutrality and efficacy of monetary policy. Since expectations affect demand, our theory shows economic fluctuations are mostly driven by varying demand not supply shocks. Using a competitive model with...

This paper takes a first step in analysing how a monetary union performs in the presence of labour market asymmetries. Differences in wage flexibility, market power and country sizes are allowed for in a setting with both country-specific and aggregate shocks. The implications of asymmetries for...

We propose a monetary model in which the unemployed satisfy the official US definition of unemployment: they are people without jobs who are (i) currently making concrete efforts to find work and (ii) willing and able to work. In addition, our model has the property that people searching for...

Zusammenfassung Mit dem Beitritt zur Europäischen Währungsunion geben die Mitgliedsländer (und ihre Zentralbanken) die Souveränität in geldpolitischen Fragen an die Europäische Zentralbank ab. Die Geldpolitik scheidet somit als Instrument der nationalen Wirtschaftspolitik aus. Wenn ihr...

This paper has two aims. First, it provides simple theoretical models that highlight two channels whereby monetary shocks have permanent real effects and the interactions between these channels. Second, it presents an empirical dynamic model, covering a panel of EU countries, and derives the...

We examine whether the introduction of the euro had a significantly positive impact on the synchronization of business cycles among members of Economic and Monetary Union (EMU) which might arise due to the lack of country-specific monetary policy shocks in the euro area. Empirical evidence on...