The two papers in Ch. 5 examine how lawyers and law professors, operating in private arenas, successfully revived a pre-modern legal system, the Lex Mercatoria – the international body of trade law derived from merchant practice. Stone Sweet’s paper traces the development of a transnational legal system, comprised of a national contract law and a network of arbitration houses that compete to supply third-party dispute resolution to the international commercial world. The paper is divided into two parts. The first discusses, in a theoretical manner, obstacles to the emergence of a stable...

The two papers in Ch. 5 examine how lawyers and law professors, operating in private arenas, successfully revived a pre-modern legal system, the Lex Mercatoria – the international body of trade law derived from merchant practice. Stone Sweet’s paper traces the development of a transnational legal system, comprised of a national contract law and a network of arbitration houses that compete to supply third-party dispute resolution to the international commercial world. The paper is divided into two parts. The first discusses, in a theoretical manner, obstacles to the emergence of a stable network of traders engaged in relatively long-range, impersonal exchange, focusing on three generic problems of human community: cooperation and commitment, transaction costs, and institutional choice and governance. The second part examines three quite different regimes that have governed transnational commercial activity: from the mediaeval law merchant, to the Westphalian state system and its institutional failings (including discussion of conflict of laws practices), and – the principal focus of the chapter – the new Lex Mercatoria and its institutionalization.