Probabilistic Characterization of Directional Distances and their Robust versions ∗

  title={Probabilistic Characterization of Directional Distances and their Robust versions ∗},
  author={L{\'e}opold Simar and Anne Vanhems},
In productivity analysis, the performance of production units is measured through the distance of the individual decision making units (DMU) to the technology which is defined as the frontier of the production set. Most of the existing methods, Farrell-Debreu and Shephard radial measures (input or output oriented) and hyperbolic distance functions, rely on multiplicative measures of the distance. Directional distance function is an alternative that can be viewed as an additive measure of… CONTINUE READING


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