st: -stcox- Methodology: Omission of Panels from an Unbalanced Panel

[Yuval Arbel <yuval.arbel@gmail.com>]

Dear Statlisters,

I appreciate very much your answer to the following methodological question:

I am working with an unbalanced panel and the -stcox- command.

The panel includes subjects and up to 114 periods.

Would it be methodologically appropriate not to exclude subjects who
entered the sample after the beginning of the sample period?
-- 
Dr. Yuval Arbel
School of Business
Carmel Academic Center
4 Shaar Palmer Street,
Haifa 33031, Israel
e-mail1: yuval.arbel@carmel.ac.il
e-mail2: yuval.arbel@gmail.com
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