Linear regression with fixed effects

aldofcesatti

Hi all,
I am currently working on a log-log linear regression model and I need to include some cross sections to the data set to improve the number of observations.
I'd like to know if there are some operators in RM that I can use for controlling the cross-sections and determine not only the regression coefficients at a total level but also every single cross section level.
Best,
Aldo

aldofcesatti

Excuse me is "Mixed effect" instead of "fixed effect"