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OVERID: Stata module to conduct postestimation tests of overidentification

Author

Listed:
  • Christopher F Baum

    (Boston College)

  • Vince Wiggins

    (StataCorp LP)

  • Steven Stillman

    (Free University of Bozen-Bolzano)

  • Mark E Schaffer

    (Heriot-Watt University)

  • Frank Windmeijer

    (University of Bristol)

Programming Language

Stata

Abstract

overid computes tests of overidentifying restrictions for a regression estimated via instrumental variables in which the number of instruments exceeds the number of regressors: that is, for an overidentified equation. These are tests of the joint null hypothesis that the excluded instruments are valid instruments, i.e., uncorrelated with the error term and correctly excluded from the estimated equation. A rejection casts doubt on the validity of the instruments. Supported estimators: ivregress, ivreg2, xtivreg, xtivreg2, xthtaylor, xtabond2, xtdpdgmm, ivprobit, ivtobit, reg3, ivreg29, xtreg. The overid routine was substantially rewritten starting with version 3. It is now essentially a wrapper for the programs underid (used for most linear IV estimators), overid9 (used for nonlinear IV estimators and reg3), and xtoverid (used for testing fixed vs random effects after xtreg). Full descriptions of the tests implemented by overid are available in the help files for these programs.

Suggested Citation

  • Christopher F Baum & Vince Wiggins & Steven Stillman & Mark E Schaffer & Frank Windmeijer, 1999. "OVERID: Stata module to conduct postestimation tests of overidentification," Statistical Software Components S396902, Boston College Department of Economics, revised 29 Sep 2020.
    • Handle: RePEc:boc:bocode:s396802
    Note: This module may be installed from within Stata by typing "ssc install overid". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/o/overid.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/o/overid.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/o/overid9.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/o/overid9.hlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/u/underid.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/u/underid.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xtoverid.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xtoverid.hlp
    File Function: help file
    Download Restriction: no
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    Citations

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    Cited by:

    1. Jones, Melanie K. & Latreille, Paul L. & Sloane, Peter J. & Staneva, Anita, 2011. "Work-Related Health in Europe: Are Older Workers More at Risk?," IZA Discussion Papers 6044, Institute of Labor Economics (IZA).
    2. Giovanni Andrea Cornia & Bruno Martorano, 2012. "Development Policies and Income Inequality in Selected Developing Regions, 1980–2010," UNCTAD Discussion Papers 210, United Nations Conference on Trade and Development.
    3. KNIGHT, John & SONG, Lina & GUNATILAKA, Ramani, 2009. "Subjective well-being and its determinants in rural China," China Economic Review, Elsevier, vol. 20(4), pages 635-649, December.
    4. Philipp Harms & Mathias Hoffmann, 2011. "Deciding to Peg the Exchange Rate in Developing Countries: The Role of Private-Sector Debt," Open Economies Review, Springer, vol. 22(5), pages 825-846, November.
    5. Zikhali, Precious, 2008. "Tenure Security and Investments: Micro-evidence from Zimbabwe’s Fast Track Land Reform Programme," Working Papers in Economics 321, University of Gothenburg, Department of Economics.
    6. Knight, John & Gunatilaka, Ramani, 2010. "Great Expectations? The Subjective Well-being of Rural-Urban Migrants in China," World Development, Elsevier, vol. 38(1), pages 113-124, January.
    7. Rios, Ana R. & Shively, Gerald E. & Masters, William A., 2009. "Farm Productivity and Household Market Participation: Evidence from LSMS Data," 2009 Conference, August 16-22, 2009, Beijing, China 51031, International Association of Agricultural Economists.
    8. Rios, Ana R. & Masters, William A. & Shively, Gerald E., 2008. "Linkages between Market Participation and Productivity: Results from a Multi-Country Farm Household Sample," 2008 Annual Meeting, July 27-29, 2008, Orlando, Florida 6145, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).

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