Discussion Papers, Department of Business and Management Science, Norwegian School of Economics (NHH)
Malmquist Productivity Analysis based on StoNED
(), Endre Bjørndal
() and Mette Bjørndal
Abstract: We construct a Malmquist productivity index based on
stochastic non-parametric envelopment of data (StoNED) method, and we study
how the distributional assumptions in the second StoNED stage affect
productivity change and its decompositions. Our discussion show that the
distributional assumptions do not affect the estimates of overall
productivity change and scale efficiency change, but that estimates of
efficiency change and technical change are affected. Data on Norwegian
electricity distribution companies is used to illustrate our discussion.
Keywords: Productivity and competitiveness; StoNED; Malmquist productivity index; Wrong skewness issue; (follow links to similar papers)
JEL-Codes: C00; C10; C14; Q00; (follow links to similar papers)
16 pages, September 24, 2015
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