Semiparametric least squares (SLS) and weighted SLS estimation of single-index models

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621 Scopus citations


For the class of single-index models, I construct a semiparametric estimator of coefficients up to a multiplicative constant that exhibits 1 √n-consistency and asymptotic normality. This class of models includes censored and truncated Tobit models, binary choice models, and duration models with unobserved individual heterogeneity and random censoring. I also investigate a weighting scheme that achieves the semiparametric efficiency bound.

Original languageEnglish (US)
Pages (from-to)71-120
Number of pages50
JournalJournal of Econometrics
Issue number1-2
StatePublished - Jul 1993
Externally publishedYes

ASJC Scopus subject areas

  • Economics and Econometrics


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