The contents of this volume are drawn from the seventh International Symposium in Economic Theory and Econometrics, and represent recent advances in the development of concepts and methods in political economy. Contributors include leading practitioners working on formal, applied, and historical approaches to the subject. The collection will interest scholars in the fields of political science and political sociology no less than economics. Section 1 investigates models of voting and representation, section 2 explores dimensions of political institutions, section 3 covers strategic aspects of competition, and section 4 examines key aspects of government behavior.