Stata Panel Data Exclusive Now

Before any analysis, Stata must understand the data’s dimensions. The foundational command is: xtset panelid timevar The entity (e.g., Country ID). The sequence (e.g., Year). This command enables Stata’s suite of

* Perform a Hausman test xttest0

Step 2: Check dependence xtscc y x1 x2, fe lag(3) stata panel data exclusive

| Command | What it checks | |--------|----------------| | xttest0 | Breusch‑Pagan LM for random effects (after xtreg, re ) | | xttest1 | Various heteroskedasticity & serial correlation tests | | xttest2 | Cross‑sectional dependence (large N, moderate T) | | xtserial | Serial correlation in panel models | | xtoverid | Robust Hausman test (after FE or RE) | Before any analysis, Stata must understand the data’s