We find equilibrium price distributions in a search model with asymmetric duopolists whose marginal costs differ. There are informed consumers who know both prices and buy at the lower one and uninformed consumers who, not knowing prices, choose a store arbitrarily. With asymmetries, pure...

The optimal income tax problem, since it requires self-selection constraints which define nonconvex feasible sets, is one of the many problems in economics for which randomization in the solution may be desirable. For a two-class economy. we characterize the optimal random tax schedules and we...

Governments often divide operations into separate branches that face different constraints and have limited information. Such separation is feasible if each can operate by solving a simple optimization problem using limited information without requiring game-theoretic calculations about others?...