Luna is Professor in the Department of Political Science at Catholic University of Chile. He earned a PhD in Political Science from the University of North Carolina, Chapel Hill. His research interests include the analysis of political party systems and political representation, the political effects of inequality, status, and research methodology in political science, with emphasis on mixed methods approach. His doctoral thesis was awarded the Juan Linz Prize for Best Thesis, awarded by the Comparative Democratization Section of the American Political Science Association (2008). Also in 2008 he obtained a post-doctoral fellowship at the Latin American Studies Program at the Woodrow Wilson Center for Scholars, and was Visiting Professor at Princeton University. He is currently the coordinator of Chile LAPOP Survey, developed by Vanderbilt University. His recent publications include Latin American Party Systems (Cambridge University Press, Comparative Politics Series, 2010, with Herbert Kitschelt, Kirk Hawkins, Guillermo Rosas and Elizabeth Zechmeister).