Horacio is an Associate Professor of Economics and Political Science at the Instituto Tecnológico Autónomo de México (ITAM) in Mexico City. Previously, he was an Assistant Professor and Associate Professor of Government at Harvard University. He is an affiliated professor of the Abdul Latif Jameel Poverty Action Lab (J-PAL) and the Bureau for Research and Economic Analysis of Development (BREAD), a research fellow at CESifo, and a member of Evidence in Governance and Politics (EGAP). He received a PhD in Economics from MIT in 2013, a master's degree in Economics and Finance from CEMFI in 2007, and a BA in Economics from the University of Buenos Aires in 2004.

His research focuses on political economy and development economics, using theoretical and empirical approaches. His work examines political accountability and voting behavior in Africa and Latin America, including clientelism and vote buying, the role of information in political accountability, the relationship between education and political participation, and the role of social networks. More recently, his research has examined misinformation and political polarization, as well as the effects of organized crime on human rights violations and legal markets.