-----Urspr�ngliche Nachricht-----
Von: Wildi Marc, wia
Gesendet: Mittwoch, 18. August 2004 10:11
An: [EMAIL PROTECTED]
Betreff:
Hi
Does anybody know from an R-package devoted to sample selection problems
(Heckman's lambda, Lewbel, ...)?
Thanks and best regards
Marc Wildi
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