Political scientist. Doctor in Political Science, University of Pittsburgh, Pennsylvania, USA. Master in Quantitative Methods in the Social Sciences, Columbia University in New York, USA. Author of the book: Divide we Vote and editor of the books: Elections 2018 in Costa Rica: portrait of a threatened democracy and Participation and electoral politics: new looks at the 2018 elections in Costa Rica. Coordinator of the Public Opinion and Political Culture Unit of the CIEP-University of Costa Rica. Researcher, State of the Nation Program. Professor at the Political Science Department, UCR. Professor at Texas Tech University, campus Costa Rica. His areas of interest are: comparative politics, elections and electoral systems, political parties; political participation, public opinion and political culture.