Estimating a Class of Triangular Simultaneous Equations Models Without Exclusion Restrictions
56 Pages Posted: 31 Oct 2006
Date Written: October 2006
Abstract
This paper provides a control function estimator to adjust for endogeneity in the triangular simultaneous equations model where there are no available exclusion restrictions to generate suitable instruments. Our approach is to exploit the dependence of the errors on exogenous variables (e.g. heteroscedasticity) to adjust the conventional control function estimator. The form of the error dependence on the exogenous variables is subject to restrictions, but is not parametrically specified. In addition to providing the estimator and deriving its large-sample properties, we present simulation evidence which indicates the estimator works well.
Keywords: endogeneity, heteroskedasticity, control function
JEL Classification: C14, C30
Suggested Citation: Suggested Citation
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