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Are all U.S. credit unions alike?

Author

Listed:
  • Emir Malikov
  • Diego A. Restrepo-Tobón
  • Subal C. Kumbhakar

Abstract

This paper raises concerns about the econometric approach used in the literature to estimate credit unions’ production technologies. We show that the existing studies did not recognize heterogeneity amongst credit unions’ technologies as captured by (endogenously selected) differing output mixes. Failure to account for the above leads to biased, inconsistent estimates and potentially misleading results. The estimates are also likely to be biased due to unobserved credit union specific effects that the literature broadly ignores. To address these concerns, we develop a generalized model of endogenous switching with polychotomous choice that is able to account for fixed effects in both the technology selection and the outcome equations. We use this model to estimate returns to scale for the U.S. retail credit unions from 1994 to 2011. Unlike recent studies, we find that not all credit unions enjoy increasing returns to scale. A nonnegligible number of large institutions operate at decreasing returns to scale, indicating that they should either cut back in size or switch to a more efficient technology by re-optimizing the output mix.

Suggested Citation

  • Emir Malikov & Diego A. Restrepo-Tobón & Subal C. Kumbhakar, 2013. "Are all U.S. credit unions alike?," Documentos de Trabajo de Valor Público 10940, Universidad EAFIT.
    • Handle: RePEc:col:000122:010940
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    File URL: http://repository.eafit.edu.co/bitstream/handle/10784/999/2013_17_Diego_A_Restrepo_new.pdf?sequence=3&isAllowed=y
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    Citations

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    Cited by:

    1. Gregory McKee & Albert Kagan, 2016. "Determinants of recent structural change for small asset U.S. credit unions," Review of Quantitative Finance and Accounting, Springer, vol. 47(3), pages 775-795, October.
    2. Murtazashvili, Irina & Wooldridge, Jeffrey M., 2016. "A control function approach to estimating switching regression models with endogenous explanatory variables and endogenous switching," Journal of Econometrics, Elsevier, vol. 190(2), pages 252-266.

    More about this item

    Keywords

    Credit Union; Fixed Effects; Panel Data; Returns to Scale; Selection; Switching Regression;
    All these keywords.

    JEL classification:

    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models
    • C34 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Truncated and Censored Models; Switching Regression Models
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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