Tamás Keller is an empirical sociologist specialized in the sociology of education using quantitative methods. He received his Ph.D. in Sociology from Corvinus University of Budapest. He spent his post-doctoral years at the Department of Public Economics at the Free University of Berlin, and at Berlin Social Science Center (WZB). His current research advances the understanding of educational inequalities by focusing on contextual drivers, including social background and peer effects. He leads and coordinates large-scale field experiments that explore the causal mechanisms that contribute to educational inequality.