Technical efficiency bias caused by intra-input aggregation in data envelopment analysis

The study shows that technical efficiency scores in Data Envelopment Analysis are biased by linear aggregation of the quantities of the same type of input that are used by all outputs (intra-input aggregation). Fare et al. 's (2004) models are expanded to account for this additional bias, and the extent of its impact on reported technical efficiency scores is commented on.

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Year of publication:	2005
Authors:	Barnum, Darold ; Gleason, John
Published in:	Applied Economics Letters. - Taylor & Francis Journals, ISSN 1350-4851. - Vol. 12.2005, 13, p. 785-788
Publisher:	Taylor & Francis Journals

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Extent:	text/html
Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10005265414