Discussions of the economic costs and benefits of EMU usually take as their basis the optimum currency area (OCA) approach. This approach starts from the premise that when an external shock hits the economy, it is easier to adjust the exchange rate than domestic prices or wages. Most economists...

According to the traditional 'optimum currency area' approach, the case for adopting a common currency is stronger if the countries are subject to relatively similar output shocks. This Paper takes a different approach and highlights the fact that high exchange rate volatility may as well signal...

Deviations of policy interest rates from the levels implied by the Taylor rule have been persistent before the financial crisis and increased especially after the turn of the century. Compared to the Taylor benchmark, policy rates were often too low. This paper provides evidence that both...