Professor of Sociology at the University of the Basque Country and Director of the Collective Identity Research Centre. President of the Research Committee 48 (International Sociological Association): Collective action, social movements and social change [2006-2010], Executive Committee [2010-2014]. Research Interests: Collective action and social movements, sociology of language, ethnolinguistic movements, collectiveidentity, social conflict, transformations in the work’s culture, sociological theory, sociology of youth, immigration and racism.