I discuss the roles of adjudication bodies in promoting the unification of law. Then I clarify the redistributive dimensions of unification projects. Working within the familiar framework of game theory as applied to international relations, I distinguish between the coordination and defection problems that underlie most international interactions. I argue that adjudication bodies have the ability to generate solutions to some coordination problems, but face major obstacles when seeking to implement stable solutions to others, and to many defection problems. The difficulties vary depending on the types of adjudication bodies involved, but each type has its own drawbacks. I offer examples from a range of current unification projects - carriage of goods, antitrust, and environmental law - to illustrate how application problems can frustrate unification.

Citation
Paul B. Stephan, Courts, Tribunals, and Legal Unification: The Agency Problem, 3 Chicago Journal of International Law, 333–352 (2002).