of one person, but that didn't represent the whole population. Finally, Sam discovered Panel Data
The Hausman test evaluates whether the coefficients of the RE model match the consistent FE model.
This decomposition is fundamental: it tells you whether most of the variation in a variable is across units (e.g., race, gender) or within units over time (e.g., income, unemployment status). stata panel data
If the assumptions of FE/RE are violated, advanced methods are required.
Convert your dataset to a long format using reshape long . of one person, but that didn't represent the
RE assumes unobserved effects are uncorrelated with regressors.
Stata provides a family of xt commands for describing and summarising panel data. If the assumptions of FE/RE are violated, advanced
Use xtline to create plots of your variables over time for each entity. 3. Estimating Panel Data Models
In macro-panels (e.g., datasets covering multiple countries over many years), shocks like global financial crises can affect all entities simultaneously. This creates cross-sectional dependence. You can test for this using Pesaran’s CD test: xtcsd, pesaran abs Use code with caution.