This book is the English language translation of the French publication E conomie Politique des Capitalismes. Research in this book presents institutional and historical macroeconomics, through an analysis of wage-labour nexus, innovation systems, monetary and financial systems, integration into the world economy, formation of economic policy configurations, and the history of economic theories. In doing so, the book addresses how and why economic regularities change in long run, and why do macroeconomic adjustments differ across countries within the same historical period. It shows how institutional changes that have occurred since the 1970s and the research on the transformation of the American and French capitalism, have led to the emergence of a research agenda, known as Regulation Theory. Readers would understand the permanent transformations of capitalism and its crises, given the book's inclusion of long-term historical studies, systematic international comparisons for the contemporary period, and the exploration of the institutional and social foundations of microeconomics which has led to the evolution of various brands of capitalism. This translated work includes a Foreword by Associate Professor Elsa Lafaye de Micheaux and Professor Thomas Lamarche.