Paul Almeida is a Professor of Sociology at the University of California, Merced. His research centers on social movements. Almeida’s articles have appeared in the American Journal of Sociology, Mobilization, Social Forces, Social Problems, and other scholarly outlets. He is author of Mobilizing Democracy: Globalization and Citizen Protest (Johns Hopkins University Press, 2014); Waves of Protest: Popular Struggle in El Salvador, 1925-2005 (University of Minnesota Press 2008) and co-editor with Hank Johnston of Latin American Social Movements: Globalization, Democratization and Transnational Networks (Rowman & Littlefield 2006). His research has been funded by the World Society Foundation and the Fulbright Scholars Program. Almeida serves on the editorial advisory boards of Anuario de Estudios Centroamericanos, Latin American Perspectives, Mobilization, Research in Political Sociology, Social Forces, and Sociologyof Development. He is a Council member for the Global and Transnational Sociology section and Chair-Elect of the section on the Political Economy of the World System (PEWS) of the American Sociological Association.  Allen Cordero Ulate was born in Tres Ríos, Costa Rica. He attended the University of Costa Rica and studied sociology in the mid 1970s. He participated in diverse social movements as well as the resistance against the Somoza dictatorship in Nicaragua between 1978 and 1979. Since 1993 he has worked as a professor and researcher at FLACSO-Costa Rica. In 2003, he earned his doctorate in Philosophy from the University of Costa Rica. Since 2005, he has served as a professor in Sociology at the University of Costa Rica teaching graduate and undergraduate courses in Social Movements and Research Methods. Dr. Cordero has also held a visiting Professorship at the Institut des Hautes Etudes de l’Amérique Latine (IHEAL) de París 3, Sorbonne Nouvelle. In the field of social movements his research focuses on environmental, indigenous, and peasant movements. He is the author of several articles and books, including: Nuevos ejes de acumulación y naturaleza: el caso del turismo (CLACSO 2006) and El Paradigma Inconcluso. Kuhn y la Sociología en América Latina (FLACSO Guatemala 2008 and EUCR, 2011).