Statistical Relation to Radial Efficiency Measures

  • Dieter Gstach
Part of the Applied Optimization book series (APOP, volume 61)


A consideration arising in the context of output-specific efficiencies is the following: Assume that with positive probability we would observe complete specialization (i.e. m s = 1) of firms with regard to one output (indexed s) and this were true for all outputs. On the other hand we would never observe zero efficiency with regard to any of the outputs (i.e. d(ε s = 0) = 0 for all s = 1... S). Neither of the two assumptions seems particularly far fetched.


Efficiency Score Output Ratio Conditional Density Radial Measure Marginal Density 
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Copyright information

© Springer Science+Business Media Dordrecht 2002

Authors and Affiliations

  • Dieter Gstach
    • 1
  1. 1.Vienna University of EconomicsAustria

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