A note on the Malmquist productivity index

E. Grifell-Tatjé, C. A.Knox Lovell

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    In recent years the Malmquist index has gained in popularity as a measure of productivity change. We demonstrate that, in the presence of non-constant returns to scale, the Malmquist productivity index does not accurately measure productivity change. The bias is systematic, and depends on the magnitude of scale economies. © 1995.
    Original languageEnglish
    Pages (from-to)169-175
    JournalEconomics Letters
    Issue number2
    Publication statusPublished - 1 Feb 1995


    • Malmquist
    • Productivity
    • Scale economies


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