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Opening the Black Box of Efficiency Measurement: Input Allocation in Multi-Output Settings

Author

Listed:
  • Laurens Cherchye
  • Bram De Rock
  • Bart Dierynck
  • Filip Roodhooft
  • Jeroen Sabbe

Abstract

We develop a new data envelopment analysis (DEA)-based methodology for measuring the efficiency of decision-making units (DMUs) characterized by multiple inputs and multiple outputs. The distinguishing feature of our method is that it explicitly includes information about output-specific inputs and joint inputs in the efficiency evaluation. This method contributes to opening the "black box" of efficiency measurement in two different ways. First, including information on the input allocation substantially increases the discriminatory power of the efficiency measurement. Second, it allows us to decompose the efficiency value of a DMU into output-specific efficiency values, which facilitates the identification of the outputs the manager should focus on to remedy the observed inefficiency. We demonstrate the usefulness and managerial implications of our methodology by means of a unique data set collected from the activity-based costing (ABC) system of a large service company with 290 DMUs. © 2013 INFORMS.

Suggested Citation

  • Laurens Cherchye & Bram De Rock & Bart Dierynck & Filip Roodhooft & Jeroen Sabbe, 2013. "Opening the Black Box of Efficiency Measurement: Input Allocation in Multi-Output Settings," ULB Institutional Repository 2013/151675, ULB -- Universite Libre de Bruxelles.
    • Handle: RePEc:ulb:ulbeco:2013/151675
    Note: SCOPUS: ar.j
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