I argue in favor of a competitive screening approach for studying the question of coalition formation in exchange economies under asymmetric information. I obtain a new notion of core that refines Wilson (1978)'s coarse core. It is nonempty under the standard regularity conditions. I also...

The tax reform literature, pioneered by Guesnerie [1977], uses static models but views tax reform as a dynamic process, i.e., as a policy-maker implementing incremental reforms over time. This paper studies tax reform in a dynamic version of the Diamond-Mirrlees-Guesnerie model and focuses on a...

Researchers and state policymakers have hypothesized that the elderly may move to another state to avoid paying “death” (i.e., inheritance, estate, gift) taxes. This belief may be responsible for the recent revolution in state “death” tax policy whereby 30 states have eliminated their...