On adding over-identifying instrumental variables to simultaneous equations.
Reducing the number of over-identifying instruments, or adding them to a structural equation, increases estimation dispersion. Added instruments should be insignificant under correct specification, with parameter estimates nearly unaffected, confirmed by Monte Carlo. Selecting instruments does not a...
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| Μορφή: | Journal article |
| Γλώσσα: | English |
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Elsevier
2011
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