id: 02170659
dt: j
an: 02170659
au: Lovell, C.A.K.; Rouse, A.P.B.
ti: Equivalent standard DEA models to provide super-efficiency scores.
so: J. Oper. Res. Soc. 54, No. 1, 101-108 (2003).
py: 2003
pu: Palgrave Macmillan, Basingstoke
la: EN
cc: 
ut: data envelopment analysis; super-efficiency
ci: 
li: doi:10.1057/palgrave.jors.2601483
ab: Summary: DEA super-efficiency models were introduced originally with the
    objective of providing a tie-breaking procedure for ranking units rated
    as efficient in conventional DEA models. This objective has been
    expanded to include sensitivity analysis, outlier identification and
    inter-temporal analysis. However, not all units rated as efficient in
    conventional DEA models have feasible solutions in DEA super-efficiency
    models. We propose a new super-efficiency model that (a) generates the
    same super-efficiency scores as conventional super-efficiency models
    for all units having a feasible solution under the latter, and (b)
    generates a feasible solution for all units not having a feasible
    solution under the latter. Empirical examples are provided to compare
    the two super-efficiency models.
rv: