SAS/STAT software contains two procedures for fitting general linear models to panel data. The GLM procedure fits general linear models involving fixed effects. The more general MIXED procedure fits ...

This study estimates a fixed effects panel data model that adopts a partially linear form: the coefficients of some variables are restricted to be constant, but the coefficients of other variables are ...

Understanding the heterogeneity over spatial locations is an important problem that has been widely studied in applications such as economics and environmental science. We focus on regression models ...