[R-SIG-Finance] GMM

Pankaj K Agarwal pankajsbi at yahoo.com
Mon Jun 27 20:17:06 CEST 2016

Apologies if this question is irrelevant for this group.
Does using HAC standard errors (Newey and West: package sandwich) in OLS regression make using GMM (package: GMM) redundant?
 Regards,Pankaj K Agarwal
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