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Twostep and maximum likelihood estimation of Heckmantype sample selection models: standard sample selection models (Tobit2), endogenous switching regression models (Tobit5), sample selection models with binary dependent outcome variable, interval regression with sample selection (only ML estimation), and endogenous treatment effects models.
Package details 


Author  Arne Henningsen [aut, cre], Ott Toomet [aut], Sebastian Petersen [ctb] 
Maintainer  Arne Henningsen <arne.henningsen@gmail.com> 
License  GPL (>= 2) 
Version  2.00 
URL  http://www.sampleSelection.org 
Package repository  View on RForge 
Installation 
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