The following resources range from foundational tutorials to deep technical dives into how GMM functions within Stata. 1. The Definitive Guide: "How to do xtabond2"
It explains why GMM is essential for "small T, large N" datasets (few time periods, many individuals) and provides clear Stata examples. stata-gmm
It pulls the "black box" of GMM open, showing you how to correctly specify instruments to avoid the "instrument proliferation" problem. 2. Practical Application: Stata's Official GMM Overview The following resources range from foundational tutorials to