Title: Efficiency of GMM Estimation in Panel Data Models with Measurement Error
Author(s): Zhiguo Xiao, Jun Shao, Ruifeng Xu and Mari Palta
Issue: Volume 69 Part 1 Year 2007
Pages: 101 -- 118
Wansbeek (2001) proposed a generalized method of moments (GMM) framework for analysing static panel data with measurement error in one regressor, without requiring external information such as a validation or replicate data set. We follow Wansbeek (2001) and provide a corrected formula for the asymptotically optimal second-stage GMM estimator. Furthermore, we show that, in some important special cases, the first-stage unweighted GMM estimator is actually asymptotically optimal. Some Monte Carlo results are presented to examine the finite sample performance of the first-stage and second-stage GMM estimators.