Dual Representations of Non-Parametric Technologies and Measurement of Technical Efficiency

摘要: This paper extends the recent work by Frei and Harker on projections onto efficient frontiers (1999) in three ways. First, we provide a formal definition of production set as intersection finite number closed halfspaces. We emphasize necessity complete enumeration supporting hyperplanes to define properly. focus problem exhaustive characterize set. Second, consider an arbitrary-norm projection boundary use concept Holder distance function derive necessary mathematics calculate distances inefficient DMUs frontier. Third, introduce relevant weighting scheme for inputs outputs so that respects commensurability axiom defined Russell (1988). Finally, present illustration using same data highlight some extensions proposed paper.