Dr Nelson Ruiz

Senior Lecturer (R) (Leverhulme Early Career Fellow)
Department of Government
Dr Nelson Ruiz



Welcome to my website. I am a Leverhulme Early Career Fellow, Senior Lecturer and Head of the Political Economy Research Division at the Government Department at the University of Essex. I am also an Associate Member at Nuffield College University of Oxford, and a research associate at the Department of Politics and International Relations (DPIR). Before, I was Leverhulme Early Career Fellow and Lecturer at DPIR/Oxford and a Non-Stipendiary Research Fellow at Nuffield College. My research interests are in the political economy of development. Within this field, the main topic I am interested in is the role of money in politics. Most of my research involves the use of causal inference methods. Before I was a post-doctoral researcher at ETH-Zurich Public Policy Group (Chair: Dominik Hangartner), a fellow at Harvard-IQSS and I was part of the Visiting Scholars Program at NYU-Politics department. I completed my PhD at the London School of Economics and Political Science. Before academia, I used to work at the Inter-American Development Bank as a research fellow evaluating development projects in the field across Latin America. For more information, please visit my personal website:


  • PhD London School of Economics, (2018)


University of Essex

  • Leverhulme Early Career Fellow, Department of Government at the University of Essex. (1/10/2022 - 1/10/2024)


Journal articles (5)

Harding, R., Prem, M., Ruiz, N. and Vargas, D., (2023). Buying a Blind Eye: Campaign Donations, Forbearance, and Deforestation in Colombia. American Political Science Review, 1-19

Gulzar, S., Rueda, MR. and Ruiz, NA., (2022). Do Campaign Contribution Limits Curb the Influence of Money in Politics?. American Journal of Political Science. 66 (4), 932-946

Gulzar, S., Robinson, TS. and Ruiz, NA., (2022). How Campaigns Respond to Ballot Position: A New Mechanism for Order Effects. The Journal of Politics. 84 (2), 1256-1261

Fergusson, L., Querubin, P., Ruiz, NA. and Vargas, JF., (2021). The Real Winner's Curse. American Journal of Political Science. 65 (1), 52-68

Rueda, MR. and Ruiz, NA., (2020). Political Agency, Election Quality, and Corruption. The Journal of Politics. 82 (4), 1256-1270

Grants and funding


Leverhulme Trust Early Career Fellowship

Leverhulme Trust



Colchester Campus