Time Fixed Effects regression are useful in dealing with omitted variables
A)even if you only have a cross-section of data available.
B)if these omitted variables are constant across entities but vary over time.
C)when there are more than 100 observations.
D)if these omitted variables are constant across entities but not over time.

Question

Quizplus · Accepted Answer

Time fixed effects regression are useful if there are omitted variables that are constant across entities but vary over time. This means that the variables affect all entities in the same way, but vary across time. It is not necessary to have a large number of observations or only a cross-section of data available for time fixed effects to be useful.

Time Fixed Effects Regression Are Useful in Dealing with Omitted