Constanza Sanhueza Petrarca is a postdoctoral researcher at Sciences Po Paris. She completed her PhD at the Graduate School of Social Sciences, University of Mannheim. Previously she was a Marie Curie Early Stage Researcher in the trainingnetwork ELECDEM and the Mannheim Center for European Social Research (MZES), University of Mannheim. She also taught under-graduate courses at the Humboldt University Berlin, University of Mannheim and Sciences Po Paris. And she has been a visiting researcher at the Electoral Integrity Project at the University of Sydney (2015), the European University Institute (2014), the WZB Berlin Social Science Center (2013 & 2011), the Comparative Study of Electoral Systems (CSES) at the University of Montréal (2012), the University of Oxford (2011) and Sciences Po Paris (2010). Also Constanza holds an M.Phil in Political Sociology (University of Paris VII), an M.A. on European Studies of Science and Technology (Maastricht University) and completed her undergraduate studies in Sociology and Political Science (Sciences Po Lille & National University of Cuyo, Argentina). Her research interests include voting behavior, political representation, immigration, software and internet technology and quantitative and qualitative methods.