With the spectre of a recession looming in the eurozone (and elsewhere), the policy question arises as to how much leeway do the fiscal authorities in the eurozone have to follow counter-cyclical fiscal policies aimed at providing some stimulus to the economy.

"We estimate channels of international risk sharing between European Monetary Union (EMU), European Union, and other OECD countries 1992-2007. We focus on risk sharing through savings, factor income flows, and capital gains. Risk sharing through factor income and capital gains was close to zero...