This book is the English language translation of the French publication Économie 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 Régulation Theory.