Dear R users,

I have a question on multilevel modeling with R when there is endogenous
regressor(s) involved. As far as my economics background concerned, I
understand that Hausman-Taylor estimator (via Generalized Least Square)
deals with this situation and the package plm does the trick. Unfortunately,
plm is created for the conventional 2-level, that is, panel or logitudinal
data structure. On the other hand, both lme/lmer (in nlme and lme4 package
respectively) are advanced packages for multilevel modeling (via Maximum
Likelihood estimators) but I haven't found any option to tackle the
potential endogeneity problems.

I'm wondering if any one knows a package that handles this type of problem,
i.e., multilevel (3-level) with endogenous regresssor. In particular, I'd
appreciate it if you can point me to any resource that invokes the HT
approach in a multilevel setting.

Thanks in advance!

Regards,
Gerry

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