Matthew Zahn
I received my Ph.D. Economics from Johns Hopkins University. My research focuses on industrial organization with an emphasis on healthcare topics.
I spent the 2022–2023 academic year as a PhD student fellow in Aging and Health Economics at the NBER offices in Cambridge, Massachusetts.
matthew.zahn [at] jhu.edu
UPCOMING PRESENTATIONS
Southern Economics Association (11/2024), Congressional Budget Office IO Seminar (12/2024), Econometric Society North American Winter Meeting (01/2025)
WORKING PAPERS
Entry and Competition in Insurance Markets: Evidence from Medicare Advantage.
2024 International Health Economics Association Best Student Paper
Who Protests, What Do They Protest, and Why? with Erica Chenoweth, Barton H. Hamilton, Hedwig Lee, Nicholas W. Papageorge, and Stephen Roll. April 2022 NBER Working Paper No. 29987.
Submitted. Press: The Atlantic
Marginal Treatment Effects as a Random Coefficients Model, with an Application to the Labor Supply Effects of Welfare Program Participation with Robert A. Moffitt. January 2022, NBER Working Paper No. 26028.
Submitted.
Modeling Dynamic Disease-Behavior Feedbacks for Improved Epidemic Prediction and Response with Hongru Du, Sara Loo, Tijs Alleman, Shaun Truelove, Bryan Patenaude, Lauren Gardner, Nicholas W. Papageorge, and Alison Hill, November 2024, medRxiv.
PEER-REVIEWED PUBLICATIONS
Socio-Demographic Factors Associated with Self-Protecting Behavior during the Covid-19 Pandemic with Nicholas W. Papageorge, Michèle Belot, Eline van den Broek-Altenburg, Syngjoo Choi, Julian C. Jamison, and Egon Tripodi. 2021 Journal of Population Economics 34, 691–738. [NBER Working Paper No. 27378]
Press: MarketWatch, VoxEU
OTHER PUBLICATIONS
Modeling to Inform Economy-Wide Pandemic Policy: Bringing Epidemiologists and Economists Together with Michael Darden, David Dowdy, Lauren Gardner, Barton H. Hamilton, Karen Kopecky, Melissa Marx, Nicholas W. Papageorge, Daniel Polsky, Kimberly Powers, and Elizabeth Stuart. 2022 Health Economics 31(7), 1291–1295. [NBER Working Paper No. 29475]
Press: The New York Times
Behavior During a Pandemic with Emma Kalish and Nicholas W. Papageorge. July 2020, IZA World of Labor.
WORK IN PROGRESS
Do Hospital Mergers Make Patients Less Safe? with Michael Darden and Zenon Zabinski.
GRANTS
Do Hospital Mergers Make Patients Less Safe? with Michael Darden and Zenon Zabinski.
$20,000 grant from the Hopkins Business of Health Initiative
Who Protests, What Do They Protest, and Why? with Nicholas W. Papageorge.
$3,000 grant from the Johns Hopkins SNF Agora Institute
MISCELLANEOUS
REPLICATIONS
Asymmetry in the Business Cycle: Friedman's Plucking Model with Correlation Innovations, Tara M. Sinclair. Studies in Nonlinear Dynamics and Econometrics, 2010.
Converted primary GAUSS programs into R functions.
Consumption and Portfolio Choice Over the Life Cycle, João F. Cocco, Francisco J. Gomes, and Pascal J. Maenhout. The Review of Financial Studies, 2005.
Project using Econ-Ark toolkit. Collaboration with Mateo Velásquez-Giraldo.
Why are the Beveridge-Nelson and Unobserved-Components Decomposition of GDP so Different? James C. Morley, Charles R. Nelson, and Eric Zivot. The Review of Economics and Statistics, 2003.
Converted GAUSS uc_ur.opt and arima212.opt programs into R functions.