 

	-----Ursprüngliche Nachricht-----
	Von: Wildi Marc, wia 
	Gesendet: Mittwoch, 18. August 2004 10:11
	An: r-help@lists.R-project.org
	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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