Myerson has made seminal contributions to the fields of economics and political science. In game theory, he introduced refinements of Nash’s equilibrium concept, and he developed techniques to characterize the effects of communication among rational agents who have different information. His analysis of incentive constraints in economic communication introduced several fundamental concepts that are now widely used in economic analysis, including the revelation principle and the revenue-equivalence theorem in auctions and bargaining. Myerson has also applied game-theoretic tools to political science, analyzing how political incentives can be affected by different electoral systems and constitutional structures.