This book presents a set of original and innovative contributions on state, institutions and democracy in the field of political economy. Modern political economy has implied the interaction between politics and economics to understand political, electoral and public issues in different nations, and in this volume a group of leading political economists and political scientists from Europe, America and Asia provides theoretical advances, modelling and case studies on main topics in political economy. The analysis of the role and performance of politics and democracy in diverse nations implies the study of the organization of the state, lobbying, political participation, public policies, electoral politics, public administration and the provision of public services. This book provides advances in the research frontier of these topics and combines historical evidence, institutional analysis, mathematical models and empirical analysis in an interdisciplinary approach. Political and social scientists, economists and those interested in the performance of states, democracy and elections can find new research results in this volume.