Testing Exclusion Restrictions at Infinity in the Semiparametric Selection Model

Bruno Crépon

No 2035, IZA Discussion Papers from Institute of Labor Economics (IZA)

Abstract: The control function in the semiparametric selection model is zero at infinity. This paper proposes additional restrictions of the same type and shows how to use them to test assumed exclusion restrictions necessary for root N estimation of the model. The test is based on the estimated control function and its derivative and takes the form of a GMM step that occurs at infinity. Alternative estimation of the parameters are proposed which do not rely on exclusion restrictions, extending available results for the estimation of the intercept at infinity. Simulations are implemented.

Keywords: policy evaluation; sample selection; exclusion restriction; semi parametric estimation (search for similar items in EconPapers)
JEL-codes: C14 C31 C34 (search for similar items in EconPapers)
Pages: 23 pages
Date: 2006-03
New Economics Papers: this item is included in nep-ecm
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Citations: View citations in EconPapers (1)

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