Other essays investigate the rhythms and logic of social change in contexts as diverse as sixteenth- through nineteenth-century Japan, nineteeth-century Europe, and twentieth-century America. Sidney Tarrow, whose work has most directly linked the concept of repertoires with that of cycles-the recurrent peaks and troughs in the historical incidence of collective action-contributes an essay that focuses on twentieth-century Italy. The significance of repertoires-recurrent forms or tactics of social protest- is explored in an essay on eighteenth- and nineteenth-century Britain by the originator of the concept, Charles Tilly. In this volume, sociologists, political scientists, and historians come together to assess the complementary concepts of repertoires and cycles as tools for illuminating the consistent patterns that emerge from the apparent chaos. Despite the seemingly chaotic character of such collective action, social scientists have increasingly noted the remarkable regularities exhibited by even the most tumultuous social change. The modern era has generated a bewildering profusion of popular protest including widespread social movements and sporadic revolutionary upheaval. Labor and Working-Class History Association Property Value dbo:abstract Repertoire of contention refers, in social movement theory, to the set of various protest-related tools and actions available to a movement or related organization in a given time frame.Association for Middle East Women's Studies.Author Resources from University Presses.Journals fulfilled by DUP Journal Services.