This two volume set is a comprehensive collection of historical and contemporary articles which highlight the theoretical foundations and the methods and models of long wave analysis. After examining the beginnings of long wave theory, the book includes discussions of time series methods and non-linear modelling, with an exploration of economic development in its historical context. It investigates the process of evolution and mutation in industrial capitalism over the last two hundred years. Contemporary reviews and critiques of long wave theory are also included. It makes available for the first time much important material that has hitherto been inaccessible. The book will be of immense value to all students and scholars interested in the history of economic thought, time series analysis and evolutionary or institutionalist analysis.