题目：Diffusing Coordination Risk
Abstract：Agents face strategic uncertainty in a coordination problem that is akin to debt rollover or currency attacks. We model this as a global game of regime change. A principal wants her preferred regime (PPR) to succeed. She faces the coordination risk that a viable PPR may fail due to the strategic uncertainty. The principal diffuses this coordination risk by making a nite partition of the mass of agents. She abandons her preferred regime if it is no longer viable. We show that with a sufficiently diffused policy, the risk that agents may attack the PPR unravels from the end.