|Econometric Theory (2002), 18:1:40-50 Cambridge University Press|
Copyright © 2002 Cambridge University Press
ON INTERCEPT ESTIMATION IN THE SAMPLE SELECTION MODEL
We provide a proof of the consistency and asymptotic normality of the estimator suggested by Heckman (1990, American Economic Review 80, 313–318) for the intercept of a semiparametrically estimated sample selection model. The estimator is based on “identification at infinity,” which leads to nonstandard convergence rate.
c1 Address correspondence to: Marcia Schafgans, Department of Economics, London School of Economics, London WC2A 2AE, UK; e-mail: firstname.lastname@example.org.