I am a professor of economics at UC San Diego, specializing in econometrics. My papers have appeared in Econometrica, Econometric Theory, Journal of Business and Economic Statistics, Journal of Econometrics, and Review of Economics and Statistics, among others.

My research encompasses several areas within econometrics, including econometrics of time series, panel data, and high-frequency financial data. My past research focused on developing robust inference methods in the presence of temporal, spatial, and spatio-temporal dependence of unknown forms. My current research focuses on econometric inference in nonparametric and semiparametric models in connection with causal inference.

I am currently an associate editor of Journal of Econometrics and Journal of Business and Economic Statistics and a coeditor of Econometric Theory. I am a fellow of the Journal of Econometrics and have won the best associate editor award twice at the journal (2020, 2021). I have also won two awards from Econometric Theory (multa scripsit in 2007 and plura scripsit in 2019).

I obtained my BS degree in mathematics in 1993 and my master’s degree in economics in 1996, both from Wuhan University, China. I obtained my Ph.D. in economics from Yale University in 2002.