Public choice theory applies economic models to explain political phenomena. This module, jointly taught by lecturers from philosophy, politics and economics, studies the concepts of market failure and political failure, problems of collective action, rational choice models of democracy and bureaucracy, social choice theory, the motivation of actors in the political process, and the evolution of conventions and norms. The political context is the move from a welfare state to a market society. The emphasis is on the critical appraisal of alternative approaches to public choice and policy issues.