Tarrow's first area of interest was the study of
communism in the 1960s. In the 1970s he moved to the study of comparative
local politics and in the 1980s to the study of social movements and
protest cycles (or 'cycles of
contention'). A specialist in European politics and society, Sidney Tarrow has written widely on Italian and French politics, centre-periphery relations,
new social movements, and
contentious politics. Tarrow is a leading expert on new social movements and, more broadly, the phenomena of contentious behaviour. His 1994 book
Power in Movement analyses the cultural, organizational and personal sources of social movements'
power, stressing that the
life cycle of social movements is a part of political struggle influenced by the existence (or lack of) the political
opportunity structures. He argues that social movements rise "when shifting political conditions open opportunities for disruption and the activities of social movements in turn can alter political policies and structures". Tarrow's five elements of political opportunity structures includes: 1) increasing access, 2) shifting alignments, 3) divided elites, 4) influential allies and 5) repression and facilitation. Tarrow writes that unlike political or economic
social institutions, social movements' power is less obvious, but just as real. In the book, Tarrow tries to explain the cyclical history of social movements (visible in the form of the
protest cycles). He also shows how movements can affect various spheres of life, such as personal lives, policy reforms and political culture. In that book he also lists four prerequisites of sustainable social movements: 1) political opportunities, 2) diffuse
social networks, 3) familiar forms of collective action (also known as the
Charles Tilly's
repertoire of contention), and 4) cultural frames that can resonate throughout a population. In 2001, Tarrow, with
Doug McAdam and
Charles Tilly, published
Dynamics of Contention (Cambridge 2001), in which the authors broadened the social movement framework to cover a broader spectrum of forms of contention. This was followed by Tarrow's
New Transnational Activism (Cambridge 2005), in which he applied the framework to the new transnational cycle of contention, and by a textbook with Tilly called
Contentious Politics (Paradigm, 2006). He is currently working on international
human rights. He was formerly on the advisory board of FFIPP-USA (Faculty for Israeli-Palestinian Peace-USA), a network of Palestinian, Israeli, and International faculty, and students, working in for an end of the Israeli occupation of Palestinian territories and just peace. ==Selected publications==