[gov3009-l] Das Presentation

Hi Everyone, In tomorrow's applied statistics seminar, Mitali Das, assistant professor of economics at Columbia University will present her paper "Estimation of Models with Endogenous Covariates, without Instrumental Variables". Although the paper is not being distributed before the seminar you can find the abstract below. See you tomorrow! Shigeo "Estimation of Models with Endogenous Covariates, without Instrumental Variables" Mitali Das Assistant Professor Department Economics, Columbia University ABSTRACT This paper introduces restrictions from economics into the estimation of models with endogenous covariates. Under weak conditions such as Spence-Mirrlees single crossing, it is shows that slope parameters of standard regressions models, e.g. simple linear, binary choice, censored and truncated models, are identified. Unlike a very large literature on estimation of such models, this paper does not depend on instrumental variables setting them apart from a long line of methodological and empirical work on structural estimation that began with Koopmans (1949). The small sample performance of the estimators is studied in a small scale simulation study. It is also applied to a returns to education problem. In this application, it is found that the proposed estimators that use no instruments yield the same behavioral response as a linear IV estimator in Card (1995) which uses an instrument known to be ``valid'' in the empirical literature. __________________________________________________________________ Shigeo Hirano Political Economy and Government shirano(a)fas.harvard.edu Harvard University