Solving the puzzles of structural efficiency

Sung Ko LI*, Yuk Shing CHENG

*Corresponding author for this work

    Research output: Contribution to journalJournal articlepeer-review

    40 Citations (Scopus)


    Since the concept of "structural efficiency" first appeared in Farrell [Farrell, M.J., 1957. The measurement of productive efficiency. Journal of the Royal Statistical Society, Series A, Part III 120, 253-281], attempts have been made to derive measures for the performance of a group of production units (often referred to an industry with many firms). Many empirical studies used the technical efficiency of an average unit to measure the structural efficiency of a group, but researchers have been puzzled by the discrepancies between the average of individual efficiency scores and the performance of the group as a whole. In this paper, we point out that the "shadow price model" provides a useful framework for understanding the economic meaning of the structural efficiency as well as its components. By recognizing these components, the puzzles related to the inconsistencies between the individual and group performance can be solved readily.

    Original languageEnglish
    Pages (from-to)713-722
    Number of pages10
    JournalEuropean Journal of Operational Research
    Issue number2
    Publication statusPublished - 16 Jul 2007

    Scopus Subject Areas

    • Computer Science(all)
    • Modelling and Simulation
    • Management Science and Operations Research
    • Information Systems and Management

    User-Defined Keywords

    • Aggregate allocative efficiency
    • Aggregate technical efficiency
    • Data envelopment analysis
    • Economics
    • Industry efficiency
    • Structural efficiency


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