Profile
I am an econometrician with the title of Associate Professor in the John E. Walker Department of Economics at Clemson University. Previously, I was
the Executive Director of Econometrics at Stata, and an Associate Professor
at Sam Houston State University.
I am an active researcher with papers in the American Economic Review,
Econometric Theory, Econometric Reviews, the Journal of Regional Science,
Economics Letters, Econometrics and Statistics, and the Stata Journal; among
other places. I was also the principal investigator on two large research
grants.
My current research interests lie in the areas of high-dimensional models and
inference after model selection. My overall research agenda has been to make
useful, robust econometric methods implementable, accessible, and
understandable by all.
I have a long-standing commitment to education. While at Stata, I gave over
150 short courses or talks to researchers and students at universities,
conferences, and training sites around the world. While at Sam Houston State, I
taught introduction to business statistics, introduction to
econometrics, and introduction Python programming for Data Science to
undergraduates. At Clemson, I will teach courses in graduate
Econometrics.
I earned a Ph.D. in Economics from the University of Texas at Austin. My
passion for programming and econometrics took me to Stata in 1999 where I
remained until January 2020. I had a profound effect on Stata, its user base,
and its perception. I developed many Stata commands. I contributed to Stata
in the areas of high-dimensional models, post-model selection inference,
causal inference, panel data, time-series data, spatial econometrics,
cross-sectional data, and models for endogenous variables. I played a key
role in the initial development of Stata MP (I was the PI for the NIH/SBIR
grant that funded the initial development of Stata MP.) I helped integrate
Mata into Stata, and I helped develop some of Stata's numerical techniques.