st: Semiparametric SLS Ichimura

[ncdcta00@uniroma2.it]

Dear statilist,

do you know if in Stata is implement Ichimura's Semi-parametric Least  
Squares (SLS) from
Ichimura (1993): "Semiparametric Least Squares (SLS) and Weighted SLS  
Estimation of
Single-Index Models," Journal of Econometrics?
I want to estimate the quantile regression  correct for selection, the  
same approach of
Buchinsky( Buchynsky: The dynamic of changes in the female wage  
distribution in the USA:
a quantile regression approach JAE 1998).
Could you give me some information?
Thank you very much in advance.

Sincerely
Catia


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