John Chao, Professor, received his PhD in Economics from Yale University in 1994. He taught at Pennsylvania State University prior to joining the Maryland faculty in 1995. He has also taught as a Visiting Professor at Yale University and at the Shanghai University of Finance and Economics and has held a visiting research position at the Academia Sinica in Taiwan. His current research focuses on IV regressions with many instruments, Bayesian econometrics, and the use of model selection methods in nonstationary time series analysis.

Professor Chao is an Associate Editor of theEconometrics Journal. Publications include: "Model Selection in Partially Nonstationary Vector Autoregressive Processes with Reduced Rank Structure" (with P. C. B. Phillips),Journal of Econometrics, 1999; "Consistent Estimation with a Large Number of Weak Instruments" (with N. R. Swanson),Econometrica, 2005; "Asymptotic Distribution of JIVE in a Heteroskedastic IV Regression with Many Instruments" (with N.R. Swanson, J.A. Hausman, W.K.Newey, and T. Woutersen),Econometric Theory, 2012; "Instrumental Variable Estimation with Heteroskedasticity and Many Instruments" (with J.A.Hausman, W.K.Newey, and T. Woutersen, and N.R.Swanson)Quantitative Economics, 2012; "Testing Overidentifying Restrictions with Many Instruments and Heteroskedasticity," (with J.A. Hausman, W.K. Newey, N.R.Swanson, and T. Woutersen),Journal of Econometrics, 2014.