Closest targets and strong monotonicity on the strongly efficient frontier in DEA
Juan Aparicio () and
Omega, 2014, vol. 44, issue C, 51-57
The determination of closest efficient targets has attracted increasing interest of researchers in recent Data Envelopment Analysis (DEA) literature. Several methods have been introduced in this respect. However, only a few attempts exist that analyze the implications of using closest targets on the technical inefficiency measurement. In particular, least distance measures based on Hölder norms satisfy neither weak nor strong monotonicity on the strongly efficient frontier. In this paper, we study Hölder distance functions and show why strong monotonicity fails. Along this line, we provide a solution for output-oriented models that allows assuring strong monotonicity on the strongly efficient frontier. Our approach may also be extended to the most general case, i.e. non-oriented models, under some conditions of regularity.
Keywords: Data envelopment analysis; Closest targets; Hölder norms; Strong monotonicity (search for similar items in EconPapers)
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