"Fixed-b Asymptotics for Panel Models with Two-Way Clustering", 2023, (with K. Chen), MSU Department of Economics.

"Some Fixed-b Results for Regressions with High Frequency Data over Long Spans", 2022, (with T. Hwang), MSU Department of Economics.

"Testing for a Shift in Trend When Serial Correlation is of Unknown Form," 2001, 1997 Center for Analytical Economics (Cornell) working paper version.

"Inference in Time Series Models using Smoothed-Clustered Standard Errors" (with S. Rho), (2021), Journal of Econometrics, supplemental appendix, additional tables.

"Heteroskedasticity Autocorrelation Robust Inference in Time Series Regressions with Missing Data", (with S. Rho), Econometric Theory, 35, 601-629, 2019, Working paper version. Supplemental appendix.

"Estimation and Inference of Linear Trend Slope Ratios with an Application to Global Temperature Data", (with N. Nawaz), Journal of Time Series Analysis, 38, 640–667, 2017. Working paper version. Supplementary document. Gauss code used for empirical analysis trend-ratio-empirical-tables.zip

"Fixed-b Asymptotics for Spatially Dependent Robust Nonparametric Covariance Matrix Estimators" (with C.A. Bester, T. Conley and C. Hansen), Econometric Theory, 32, 154-186, 2016. Older Longer Working Paper

"Multivariate Trend Comparisons Between Autocorrelated Climate Series with General Trend Regressors", (with R. McKitrick), Environmetrics, 25, 528-547, 2014. Accepted Version with SI

"Integrated Modified OLS Estimation and Fixed-b Inference for Cointegrating Regressions", (with M. Wagner), Journal of Econometrics, 178, 741-760, 2014, Working Paper Version,  Supplement with Tables of Critical Values.

"Heteroskedasticity, Autocorrelation, and Spatial Correlation Robust Inference in Linear Panel Models with Fixed-Effects", Journal of Econometrics, Journal of Econometrics, 166(2), 303-319, 2012. Longer working paper version.

"Testing for a Shift in Trend at an Unknown Date: A Fixed-b Analysis of Heteroskedasticity Autocorrelation Robust OLS Based Tests," (with O. Sayginsoy), Econometric Theory, 27, 992-1025, 2011. Longer working paper version.

"Fixed-b Asymptotic Approximation for the Sampling Behavior of Nonparametric Spectral Density Estimators," (with N. Hashimzade), Journal of Time Series Analysis, 29, 142-162, 2008. Longer working paper version.

 "A New Asymptotic Theory for Heteroskedasticity-Autocorrelation Robust Tests," (with N. Kiefer), Econometric Theory, 21, 1130-1164, 2005. Original-draft, Revised-draft.

"The Application of Size Robust Trend Analysis to Global Warming Temperature Series," (with T. Fomby) Journal of Climate, 15, 117-123, 2002.  Longer working paper version.