Dealing with Markov-switching parameters in quantile regression models (with Lijuan Huo and Taehwan Kim), Communications in Statistics-Simulation and Computation, 51(11), 2022, pp.6773-6791.
A unified framework jointly explaining business conditions, stock returns, volatility and ‘volatility feedback news’ effects (with Changjin Kim), Studies in Nonlinear Dynamics & Econometrics, 23(2), 2019, pp.1-14.
The instability of the Pearson correlation coefficient in the presence of coincidental outliers (with Taehwan Kim and Tolga Ergun), Finance Research Letters, 13, 2015, pp.243-257.
Pricing Stock Market Volatility: Does it Matter whether the Volatility is Related to the Business Cycle? (with Charles R. Nelson), Journal of Financial Econometrics, 12(2), 2014, pp.307-328.
Dealing with Endogeneity in a Time-Varying Parameter Model: Joint Estimation and Two-Step Estimation Procedures (with Changjin Kim), The Econometrics Journal, 14, 2011, pp.487-497.