Abstract
For the basic dynamic panel data model we give an expression for the optimal instrumental variable (IV) estimator and show that the generalized method of moments (GMM) does not add to the asymptotic efficiency. It is recommended to exploit the full set of orthogonality conditions as given by Ahn and Schmidt.
Original language | English |
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Pages (from-to) | 145-152 |
Number of pages | 8 |
Journal | Economics Letters |
Volume | 51 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1996 |