decision problem of using self-governance for risk sharing or governance through enforcement provided by these institutions … prevent first-best risk sharing, but never optimal to provide incentives exclusively via this technology. Commitment problems …

international equity transactions that accentuate the role of international risk sharing as a factor for the macroeconomic response … shock affecting only one country. Efficient global risk-sharing imply that expected productivity gains in one country will … for the productivity gains can further increase the risk exposure of foreign shareholders. The model is calibrated to show …

When people share risk in financial markets, intermediaries provide costly enforcement for most trades and, hence, are … an integral part of financial marketsu0092 organization. We assess the degree of risk sharing that can be achieved … allow for optimal risk sharing as long as markets are complete, default is prevented in equilibrium and intermediaries …

aggregation over countries. Our theory permits monitoring the effects of policy at the aggregate level over the euro area, while …We derive fundamental new theory for measuring monetary service flows aggregated over countries within the European … aggregation across countries over the heterogeneous representative agents, and we derive the resulting formulas for stochastic …