EDUCATION

• Boston College - PhD. in Economics. 2014
• Korea University - M.A. in Economics. 2009
• Korea University - B.A.. 2007

EMPLOYMENT

• Associate Professor, Division of Economics, Hankuk University of Foreign Studies. 2023- Current
• Assistant Professor, Chow Center & WISE & School of Economics, Xiamen University. 2019-2022.
• Assistant Professor (Junior Professor), Economics and Business Administration, University
  of Frankfurt (Goethe-Universität Frankfurt am Main) 2014-2019

RESEARCH INTERESTS

• Econometrics, Treatment Effect, Applied Microeconomics.

PUBLICATIONS

• Causal Duration Analysis Based on Survival Probability Ratio (with R.M. Myung and M.J. Lee), 2025, Sociological Methods and Research, forthcoming.
• Linear Probability Model Revisited: Why It Works and How It Should Be Specified (with G. Lee and M.J. Lee), 2025, Sociological Methods and Research 54, 173–186. (IF: 6.5).
• Minimally Heterogeneous Complier Effect of Endogenous Treatment for Any Outcome Variable (with G. Lee, and M.J. Lee), 2023, Journal of Causal Inference 11, 20220036 (IF: 1.4). 
• Score Manipulation, Density Continuity and Intent-to-Treat Effect for Regression Discontinuity (with M.J. Lee), 2023, Pacific Economic Review 28, 552-569. (IF: 1.5).
• Complier and Monotonicity Condition for Fuzzy Multi-Score Regression Discontinuity (with M.J. Lee), 2023, Economics Letters 228, 111169 (IF: 2.0).
• Over-Identified Doubly Robust Identification and Estimation (with A. Lewbel and Z. Zhou), 2023, Journal of Econometrics 235, 25-42 (Supplemental Appendix ) (IF: 6.3).
• Endogenous Treatment Effect for Any Response Conditional on Control Propensity Score (with G. Lee and M.J. Lee), 2023, Statistics and Probability Letters 196, 109747 (IF: 0.8).
• Overlap Weight and Propensity Score Residual for Heterogeneous Treatment Effects: A review with Extensions (with M.J. Lee), 2023, Journal of Statistical Planning and Inference 222, 22-37 (IF: 0.9).
• Finding Mover-Stayer Quantile Difference due to Unobservables using Quantile Selection Corrections (with M.J. Lee), 2022, Bulletin of Economic Research 74, 704-721 (Application files) (IF: 0.888).
• Basics and Recent Advances in Regression Discontinuity: Difference versus Regression Forms (with M.J. Lee), 2021, Journal of Economic Theory and Econometrics 32 (The Korean Econometric Society journal), 1-68. 
• Twins Are More Different than Commonly Believed, but Made Less Different by Compensating Behaviors (with M.J. Lee), 2019, Economics and Human Biology 35, 18-31 (IF: 2.774).
• Relaxing Conditions for Local Average Treatment Effect in Fuzzy Regression Discontinuity (with M.J. Lee), 2018, Economics Letters 173, 47-50 (IF: 1.469).
• Regression Discontinuity with Multiple Running Variables Allowing Partial Effects (with M.J. Lee), 2018, Political Analysis 26, 258-274 (IF: 9.015).
• Semiparametric Estimator for Binary‐outcome Sample Selection: Prejudice Matters in Election, 2018, Oxford Bulletin of Economics and Statistics 80, 536-553 (IF: 2.518).
• Minimum Distance Estimator for Sharp Regression Discontinuity with Multiple Running Variables (with M.J. Lee), 2018, Economics Letters 162, 10-14 (IF: 1.469).
• Regression Discontinuity Essentials: a Review with Extensions (with M.J. Lee), 2017, Statistical Papers 58 1217-1246 (IF: 1.523).
• Bounding Endogenous Regressor Coefficients Using Moment Inequalities And Generalized Instruments (with M.J. Lee), 2012, Statistica Neerlandica 66, 161-182 (IF: 1.239).