Research Interests

• Public Finance, Corporate Finance, Health Economics
• Specialization: Government Policy Evaluation

Refereed Journal Articles (* indicates that the co-author was a graduate-program student when the project was finished.)

• "Stock Market Uncertainty and Economic Fundamentals: An Entropy-Based Approach," with K. Ahn, S. Sohn, and B. Yang*. Accepted at Quantitative Finance.
• "Asymmetric Pricing Dynamics with Market Power: Investigating Island Data of the Retail Gasoline Market," with W.H. Hong. Forthcoming at Empirical Economics, 1-41.
• "Effects of Health Insurance Coverage on Household Financial Portfolio: Evidence from the Affordable Care Act." 2018. Economics Letters 171, 176-179.
• "Impact of the Excise Tax on Firm R&D and Performance in the Medical Device Industry: Evidence from the Affordable Care Act." 2018. Research Policy 47(5), 854-871.

- Featured in Tax Foundation, ScienceDaily, ISU, WashingtonExaminer, Edition Truth, TCTMD, Plastics Today, Medical Development, NIR Medical, Xtalks, HealthCareBusiness, HealthImaging, Becker's Healthcare, Radiology Business, Medical Design Briefs, Futurity, MITA, News-Press, MassDevice, CCAGW, MDDI, Newswise

• "Impact of the Medicaid Expansion on U.S. Health Services Firms: Evidence from the 2010 Affordable Care Act," with F.A. Zhang*. 2017. Finance Research Letters 21, 172-177.
• "Dividend Taxation and Household Dividend Portfolio Decisions: Evidence from the U.S. Jobs and Growth Tax Relief Reconciliation Act of 2003." 2017. Applied Economics 49(8), 723-737.
• "Effects of Dependent Coverage Mandate on Household Precautionary Savings: Evidence from the 2010 Affordable Care Act." 2016. Economics Letters 147, 32-37.

Working Papers

• "Affordable Care Act's Medicaid Expansion and Low-Income Household Savings."
• "Effects of Background Risk on Household Financial Portfolios: Evidence from the Affordable Care Act."
• "Effect of Health Insurance on Occupational Choice of Young Adults: Evidence from the Affordable Care Act."
• "Effect of Welfare Ban on Immigrants’ Health: Evidence from the Personal Responsibility and Work Opportunity Reconciliation Act."
• "Impact of the Renewable Energy Use on Social Welfare," with K. Ahn and G. Chu.

Work in Progress

• "IT Adoption and Firm Innovation," with K. Ahn and D.S. Kim.
• "Retiree Health Insurance and Labor Supply of the Older Parents," with M. Gilligan.
• "State-Level Demographics and Stock Return Predictability," with H.J. Park.
• "The Cost of Default in a Cash-In Advance Economy," with K. Ahn and L. Li.
• "Welfare Generosity and Immigrants' Migration Decisions," with D. Wang.