Do Health Insurers Matter for Health Outcomes? Evidence from a Large Natural Experiment in Colombia. With Giancarlo Buitrago, Paul Rodriguez-Lesmes, and Marcos Vera-Hernandez.

Centralized and Decentralized Equilibria in Provider Network Breadth. New version soon.

How to Promote Health Insurer Competition: Evidence from Automatic Enrollment Rules. With Giancarlo Buitrago, Paul Rodriguez-Lesmes, and Marcos Vera-Hernandez.

Determinants of Provider Networks: Risk Selection vs. Fixed Costs. Revise and Resubmit at the American Economic Journal: Microeconomics.

Nonlinear Contracts in Healthcare and Their Impact on Medical Decisions. With Cici McNamara. New version soon.

What Do Health Insurers Do? Patient Choices and Utilization Management in Healthcare. New version soon.

Risk Adjustment in Health Insurance in the Presence of Multiple Market Failures. With Lin-Tung Tsai.

Facilitating Contraceptive Choice: Market Segmentation, Information Frictions, and Price Regulation. With Jorge Florez, Santiago Ortiz, Paul Rodriguez-Lesmes.

Supply-side Drivers of Long-Acting Reversible Contraceptives: Evidence from Medicaid Beneficiaries. With Maya Rossin-Slater.

The Relationship between Economic Inequality and Life Expectancy Gaps Across Nations: The Case of Colombia vs. the U.S. With Eran Bendavid, Grant Miller and Paul Rodriguez-Lesmes.

Exogenous Exits, Market Structure, and Equilibrium Contracts in Healthcare. American Economic Review: Insights. (2025), 7(3), 325-339.

The Rise of Urgent Care Centers: Implications for Competition and Access to Health Care. With Lorenzo Magnolfi, Corina Mommaerts, and Christopher Sullivan. Journal of Political Economy: Microeconomics, 2024, 2(2), 201-243

The Impact of a National Formulary Expansion on Diabetics. Health Economics, 2022, 31(11), 2311-2332. With Cici McNamara.

Cost Sharing and the Demand for Health Services in a Regulated Market. Health Economics, 2021, 30(6), 1259-1275.

Implementing Parity for Mental Health and Substance Use Treatment in Medicaid. Health Services Research, 2020, 55(4). With Marguerite Burns, Laura Dague, Brendan Saloner, Kristen Voskuil, Nam Hyo Kim, and Kevin Look.

Access to Care Among Individuals Who Experienced Medicaid Lockouts After Premium Nonpayment. JAMA Network Open, 2019, 2(11). With Brendan Saloner, Laura Dague, Donna Friedsam, Kristen Voskuil, and Marguerite Burns.

Welfare Effects of Switching Barriers Through Permanence Clauses: Evidence from the Mobiles Market in Colombia. Telecommunications Research, 2019, 43(4). With Alvaro Riascos and Juan David Martin.

Machine Learning Based Program to Prevent Hospitalizations and Reduce Costs in the Colombian Statutory Health Care System. International Journal of Knowledge Discovery in Bioinformatics, 2018, 8(2). With Alvaro Riascos.

Risk Adjustment Revisited using Machine Learning Techniques. Proceeding Series of the Brazilian Society of Computational and Applied Mathematics, 2018, 6(2). With Alvaro Riascos and Mauricio Romero.

Predicting Annual Length-Of-Stay and its Impact on Health Costs: The Case of the Colombian Healthcare System. Proceedings of Machine Learning Research, 2017, 69. With Alvaro Riascos.