A note on a variant of radial measure capable of dealing with negative inputs and outputs in DEA

The recent contribution by Cheng et al. (2013) presents a variant of the traditional radial input- and output-oriented efficiency measures whereby original values are replaced with absolute values. This comment spells out that this article contains some imprecisions and therefore presents some further results.

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Year of publication:	2014
Authors:	Kerstens, Kristiaan ; Van de Woestyne, Ignace
Published in:	European Journal of Operational Research. - Elsevier, ISSN 0377-2217. - Vol. 234.2014, 1, p. 341-342
Publisher:	Elsevier
Subject:	Data envelopment analysis \| Negative data \| Proportional interpretation

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10010730167