st: time dummy in random-effects model

["Seok-Woo Kwon" <swkwon@uky.edu>]

Dear Statalist,

In a running random-effects model for panel data, I have yearly observations
and add a time dummy for each year. However, I noticed that some people do
not put in the time dummy at all in the model. Is this justified?

Thanks.

Seok-Woo

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