Summaries

Question 1

PANEL DATA: 
Definition, 
entity fixed effects, 
when there are two time periods, 
estimate entity fixed regression,
time fixed
time + entity fixed

Answer 1

Panel data consists of observations of multiple entities, where each entity is observed at two or more periods.
Regression with entity fixed effects controls for unobserved variables that differ from one entity to the next, but remain constant over time.
When there are two time periods, f