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Regularity conditions and scope estimates: The case of large-sized U.S. banks

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Abstract

We consider economies and diseconomies of scope for large U.S. banks by employing ordinary and hybrid translog cost functions. We examine the regularity conditions in output space where scope estimates are calculated and reject all models for which these conditions fail. The translog model always possesses violations. For the hybrid translog, violations occur in every case except one. In this one case, we find economies of scope.

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Authors and Affiliations

  1. Economics, Department of Economics, Seton Hall University, 07079-2692, South Orange, NJ, USA

    Athanasios G. Noulas (Assistant Professor)

  2. Department of Economics, University of Connecticut, Box U-63, 06269-1063, Storrs, CT, USA

    Stephen M. Miller (Professorof Economics)

  3. Department of Economics, University of Connecticut, Box U-63, 06269-1063, Storrs, CT, USA

    Subhash C. Ray (Professor of Economics)

Authors
  1. Athanasios G. Noulas
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  2. Stephen M. Miller
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  3. Subhash C. Ray
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Noulas, A.G., Miller, S.M. & Ray, S.C. Regularity conditions and scope estimates: The case of large-sized U.S. banks. J Finan Serv Res 7, 235–248 (1993). https://doi.org/10.1007/BF01047012

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