Political economy has been an essential realm of inquiry and has attracted myriad intellectual adherents for much of the period of modern scholarship. The discipline's formal split into the distinct studies of political science and economics in the nineteenth-century, while advantageous for certain scientific developments, has biased the way economists and political scientists think about many issues, and has placed artificial constraints on the study of many important social issues. This volume calls for a reaffirmation of the importance of the unified study of political economy, and explores the frontiers of the interaction between politics and markets. This volume brings together intellectual leaders of various areas, drawing upon state-of-the-art theoretical and empirical analysis from each of the underlying disciplines. Each chapter, while beginning with a survey of existing work, focuses on profitable lines of inquiry for future developments. Particular attention is devoted to fields of active current development.