The PANEL procedure produces incorrect results when a dynamic panel model is fit with the GMM1, GMM2, or ITGMM option


If a dynamic panel model is fit by specifying the GMM1, GMM2, or ITGMM option in the MODEL statement in the PANEL procedure, the resulting standard errors of the parameter estimates, fit statistics, and Sargan test are incorrect.

There is no circumvention for this problem.