There have been several proposals to reduce the observed volatility of flexible exchange rates. The paper reviews two recent opposite views on the appropriateness of a common world currency for this purpose. Referring to an adequately formulated theory of world money, it is shown that there is...

This paper reviews reassesses the methodology and principal findings of the “Rose effect”, i.e. the trade effects of currency union, looking at both EMU and non-EMU currency unions. The consensus estimate suggests that the euro has already boosted intra-euro area trade by five to ten...