Research

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Published Papers

Reverse Gender Gap Among International Students in South Korea (2024)

Journal of Asian Sociology, 53(1): 31-49

An Empirical Analysis on Performance Inconsistency among Environmental, Social and Governance Components of ESG Ratings (2004)

Asia-Pacific Journal of Business, 15(1): 33-44

Intra-Household Peer Effects in Smartphone Adoption (2023)

International Economic Journal, 37(1):1-16

(joint with Jungwon Yeo)

Identification and Estimation of Installed-Base Effects for Product Adoption under Sample Attrition and Homophily (2021)

International Economic Journal, 35(2):141-154

Comments on Estimation of Quasi-Hyperbolic Discount Function Using Observational Discrete Choice Data (2021)

Korean Journal of Industrial Organization, 29(1): 73-93

Estimating Installed-Base Effects in Product Adoption: Borrowing IVs from the Dynamic Panel Data Literature  (2020)

Journal of Choice Modelling, 37, article number  100247

Advertising and Market Structure in the US Mutual Fund Industry  (2020)

International Economic Journal, 34(2): 238-257

Comments on "Identification and Semiparametric Estimation of a Finite Horizon Dynamic Discrete Choice Model with a Terminating Action"  (2019)

Quantitative Marketing and Economics, 17(4): 439-449

(joint with Oystein Daljord and Denis Nekipelov)

Selection Bias in Estimation of Peer Effects in Product Adoption  (2019)

Journal of Choice Modelling, 30: 17-27             

Estimating Price Sensitivity of Economic Agents Using Discontinuity in Nonlinear Contracts (2017)

Quantitative Economics, 8(2): 397-433 

(joint with Pat Bajari, Han Hong and Robert Town)

Winner, 2018 Willard G. Manning Memorial Award for the Best Research in Health Econometrics

Identification and Semiparametric Estimation of a Finite Horizon Dynamic Discrete Choice Model with a Terminating Action (2016)

Quantitative Marketing and Economics, 14(4): 271-323 

(joint with Pat Bajari, Sean Chu and Denis Nekipelov)

Winner, 2017 Dick Wittink Award for Best Paper in Quantitative Marketing and Economics

Industry Shock Expectations, Interindustry Linkages, and Merger Waves: Evidence from the Hospital Industry (2014)

Journal of Economics & Management Strategy, 23(3): 548-567 

(joint with Robert Town)

Understanding Merger Incentives and Outcomes in the Mutual Fund Industry (2013)

Journal of Banking & Finance, 37: 4368-4380

The Impact of Health Insurance Mandates on Drug Innovation: Evidence from the United States (2013)

The European Journal of Health Economics, 14(2): 323-344 

(joint with Natalie Chun)

The Impact of Clinical Trial Insurance Coverage Mandates on Racial Minorities and Low Income Individuals (2012)

Applied Economics, 44(15): 1977-1984 

(joint with Natalie Chun)

The Economic Impact of Wireless Number Portability (2011)

The Journal of Industrial Economics, 59(4): 714-745 

(cited in the New York Times)

Working Papers

An Empirical Analysis of Subprime Mortgage Default from 2000 to 2007   (joint with Pat Bajari and Sean Chu)     

Work in Progress

Timely versus Quality Innovation: The Case of Mobile Applications on Google Play and iTunes 

(joint with Yongdong Liu and Denis Nekipelov)