How to Do xtabond2: An Introduction to "Difference" and "System" GMM in Stata - Working Paper 103
This working paper by CGD research fellow David Roodman provides an original synthesis and exposition of the literature on a particular class of econometric techniques called "dynamic panel estimators," and presents the first implementation of some of these techniques in Stata, a statistical software package widely used in the research community. Stata is designed to encourage users to develop new commands for it, which other users can then use or even modify. In this paper, Roodman introduces two commands, abar and xtabond2, which is one of the most frequently downloaded user-written Stata commands in the world. Learn more