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ssc d cmp
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seems to be more versatile than the commands shipped with Stata for this
kind of estimation. See also
http://www.stata.com/meeting/dcconf09/dc09_roodman.ppt
HTH
Martin
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Von: [email protected]
[mailto:[email protected]] Im Auftrag von
[email protected]
Gesendet: Montag, 31. August 2009 14:38
An: [email protected]
Betreff: st: Request for Help - Heckman Self Selection
Dear All,
I am looking at the impact of offshoring and outsourcing on project
performance. I am planning to use the Heckman two stage model for self
selection but wanted to request your help with two question.
1) Can I use two selection equations (2 probits) as firms in my sample
make two related?
a) Firms chose between inhouse and outsourcing
b) Firms chose between domestic and offshoring
2) Can I use multivariate regression for my outcome regression? I want to
use two performance measures, cost and duration.
What STATA commands should I use to estimate? I would really appreciate
your help in answering my two questions. Thank
you.
Regards,
Pooja
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