Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/98994 
Year of Publication: 
2014
Series/Report no.: 
IZA Discussion Papers No. 8256
Publisher: 
Institute for the Study of Labor (IZA), Bonn
Abstract: 
We consider the estimation of a semiparametric location-scale model subject to endogenous selection, in the absence of an instrument or a large support regressor. Identification relies on the independence between the covariates and selection, for arbitrarily large values of the outcome. In this context, we propose a simple estimator, which combines extremal quantile regressions with minimum distance. We establish the asymptotic normality of this estimator by extending previous results on extremal quantile regressions to allow for selection. Finally, we apply our method to estimate the black-white wage gap among males from the NLSY79 and NLSY97. We find that premarket factors such as AFQT and family background characteristics play a key role in explaining the level and evolution of the black-white wage gap.
Subjects: 
sample selection models
extremal quantile regressions
black-white wage gap
JEL: 
C21
C24
J31
Document Type: 
Working Paper

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