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...

Evaluating the costs and benefits of exchange rate stability requires a somewhat different approach for Mercosur than for the EU. EU member countries are highly integrated in terms of trade in goods and services. By contrast, trade integration within Mercosur is much more limited, intra-area...