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A parallel production frontiers approach for intertemporal efficiency analysis: The case of Taiwanese commercial banks

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  • Kao, Chiang
  • Liu, Shiang-Tai

Abstract

A comparison of the efficiency of a production unit at one period with those of other units at another period is challenging, because the bases for calculating efficiency are usually different. The Malmquist productivity index (MPI) is an effective measure that can overcome this difficulty. However, the existing measures of this index have various weaknesses with regard to feasibility, circularity, decomposability, and consistency. This paper thus develops a model to construct parallel production frontiers for the units at different periods to measure the MPI. This model is always feasible, the calculated MPI has the property of circularity, it can be decomposed into the product of efficiency change and technical change, and the results are consistent. An application of this model to Taiwanese commercial banks for the period 2008–2013 confirms these merits. The results also indicate that in general the MPIs of these banks increased from 2008 to 2013, and this was attributed to improvements in technology. Since the efficiencies measured from the parallel model are comparable among different units and different periods, they can be used for intertemporal analysis to identify the banks with unsatisfactory performance in different periods.

Suggested Citation

  • Kao, Chiang & Liu, Shiang-Tai, 2016. "A parallel production frontiers approach for intertemporal efficiency analysis: The case of Taiwanese commercial banks," European Journal of Operational Research, Elsevier, vol. 255(2), pages 411-421.
  • Handle: RePEc:eee:ejores:v:255:y:2016:i:2:p:411-421
    DOI: 10.1016/j.ejor.2016.04.047
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    References listed on IDEAS

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    Cited by:

    1. Imad Bou-Hamad & Abdel Latef Anouze & Denis Larocque, 2017. "An integrated approach of data envelopment analysis and boosted generalized linear mixed models for efficiency assessment," Annals of Operations Research, Springer, vol. 253(1), pages 77-95, June.
    2. Partovi, Elmira & Matousek, Roman, 2019. "Bank efficiency and non-performing loans: Evidence from Turkey," Research in International Business and Finance, Elsevier, vol. 48(C), pages 287-309.
    3. Sueyoshi, Toshiyuki & Goto, Mika, 2019. "The intermediate approach to sustainability enhancement and scale-related measures in environmental assessment," European Journal of Operational Research, Elsevier, vol. 276(2), pages 744-756.
    4. Kao, Chiang & Liu, Shiang-Tai, 2019. "Cross efficiency measurement and decomposition in two basic network systems," Omega, Elsevier, vol. 83(C), pages 70-79.

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