Arbeitspapier

Combining two consistent estimators

This paper shows how a weighted average of a forward and reverse Jackknife IV estimator (JIVE) yields estimators that are robust against heteroscedasticity and many instruments. These estimators, called HFUL (Heteroscedasticity robust Fuller) and HLIM (Heteroskedasticity robust limited information maximum likelihood (LIML)) were introduced by Hausman et al. (2012), but without derivation. Combining consistent estimators is a theme that is associated with Jerry Hausman and, therefore, we present this derivation in this volume. Additionally, and in order to further understand and interpret HFUL and HLIM in the context of jackknife type variance ratio estimators, we show that a new variant of HLIM, under specific grouped data settings with dummy instruments, simplifies to the Bekker and van der Ploeg (2005) MM (method of moments) estimator.

Language
Englisch

Bibliographic citation
Series: Working Paper ; No. 2013-10

Classification
Wirtschaft
Estimation: General
Multiple or Simultaneous Equation Models: Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions; Social Interaction Models
Subject
endogeneity
instrumental variables
jackknife estimation
many moments
Hausman (1978) test

Event
Geistige Schöpfung
(who)
Chao, John
Hausman, Jerry
Newey, Whitney
Swanson, Norman
Woutersen, Tiemen
Event
Veröffentlichung
(who)
Rutgers University, Department of Economics
(where)
New Brunswick, NJ
(when)
2012

Handle
Last update
10.03.2025, 11:43 AM CET

Data provider

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Object type

  • Arbeitspapier

Associated

  • Chao, John
  • Hausman, Jerry
  • Newey, Whitney
  • Swanson, Norman
  • Woutersen, Tiemen
  • Rutgers University, Department of Economics

Time of origin

  • 2012

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