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Decomposing Malmquist Productivity Indexes into Explanatory Factors

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Author Info

  • Diewert, Erwin
  • Fox, Kevin

Abstract

Caves, Christensen, Diewert introduced Malmquist output, input and productivity indexes into production theory in a systematic way. These indexes use distance functions to represent the technology. In recent years, there have been many attempts to decompose Malmquist productivity indexes into explanatory components. This paper revisits this debate of how to decompose a Malmquist productivity index into explanatory factors, with a focus on extracting technical progress, technical efficiency change, and returns to scale components. In order to define these components, a reference technology is required. The paper does not make any convexity assumptions on the reference technology but instead follows the example of Tulkens and his coauthors in assuming that the reference technology satisfies free disposability assumptions.

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File URL: http://www.economics.ubc.ca/faculty-and-staff/w-erwin-diewert/
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Bibliographic Info

Paper provided by Vancouver School of Economics in its series Economics working papers with number erwin_diewert-2013-39.

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Length: 37 pages
Date of creation: 18 Sep 2013
Date of revision: 18 Sep 2013
Handle: RePEc:ubc:bricol:erwin_diewert-2013-39

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Web page: http://www.economics.ubc.ca/

Related research

Keywords: Productivity indexes; Malmquist indexes; technical efficiency; technical progress; returns to scale; Data Envelopment Analysis; Free Disposal Hulls; n;

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Cited by:
  1. Diewert, Erwin & Fox, Kevin, 2013. "Reference Technology Sets, Free Disposal Hulls and Productivity Decompositions," Economics working papers erwin_diewert-2013-40, Vancouver School of Economics, revised 18 Sep 2013.

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