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Estimation of dynamic panel data models with sample selection

Authors


Anastasia Semykina, Department of Economics, Florida State University, 113 Collegiate Loop, Tallahassee, FL 32306–2180, USA. E-mail: asemykina@fsu.edu

SUMMARY

We propose a new method for estimating dynamic panel data models with selection. The method uses backward substitution for the lagged dependent variable, which leads to an estimating equation that requires correcting for contemporaneous selection only. The estimator is valid under relatively weak assumptions about errors and permits avoiding the weak instruments problem associated with differencing. We also propose a simple test for selection bias that is based on the addition of a selection term to the first-difference equation and subsequent testing for significance of this term. The methods are applied to estimating dynamic earnings equations for women. Copyright © 2011 John Wiley & Sons, Ltd.

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