Economic efficiency when prices are not fixed: disentangling quantity and price efficiency

Portela, Maria Conceição A. Silva; Thanassoulis, Emmanuel

Publication

Economic efficiency when prices are not fixed: disentangling quantity and price efficiency

2014Journal article

dc.contributor.author	Portela, Maria Conceição A. Silva
dc.contributor.author	Thanassoulis, Emmanuel
dc.date.accessioned	2014-06-05T16:20:24Z
dc.date.available	2014-06-05T16:20:24Z
dc.date.issued	2014
dc.description.abstract	This paper proposes an approach to compute cost efficiency in contexts where units can adjust input quantities and to some degree prices so that through their joint determination they can minimise the aggregate cost of the outputs they secure. The model developed is based on the data envelopment analysis (DEA) framework and can accommodate situations where the degree of influence over prices ranges from minimal to considerable. When units cannot influence prices at all the model proposed reduces to the standard cost efficiency DEA model for the case where prices are taken as exogenous. In addition to the cost efficiency model, we introduce an additive decomposition of potential cost savings into a quantity and a price component, based on Bennet indicators.
dc.description.version	info:eu-repo/semantics/acceptedVersion
dc.identifier.citation	PORTELA, Maria; THANASSOULIS, Emmanuel - Economic efficiency when prices are not fixed: disentangling quantity and price efficiency. Omega - The International Journal of Management Science. ISSN 0305-0483. Vol. 47 (2014), p. 36–44	por
dc.identifier.doi	10.1016/j.omega.2014.03.005
dc.identifier.issn	0305-0483
dc.identifier.uri	http://hdl.handle.net/10400.14/14503
dc.language.iso	eng	por
dc.peerreviewed	yes	por
dc.publisher	Elsevier	por
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Cost efficiency	por
dc.subject	Price efficiency	por
dc.subject	Bennet indicators	por
dc.subject	Data envelopment analysis	por
dc.title	Economic efficiency when prices are not fixed: disentangling quantity and price efficiency	por
dc.type	journal article
dspace.entity.type	Publication
oaire.awardURI	info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FEGE-GES%2F112232%2F2009/PT
oaire.citation.endPage	44
oaire.citation.startPage	36
oaire.citation.title	Omega
oaire.citation.volume	47
oaire.fundingStream	3599-PPCDT
person.familyName	Silva
person.familyName	Thanassoulis
person.givenName	Maria
person.givenName	Emmanuel
person.identifier.ciencia-id	D012-79F9-34BC
person.identifier.orcid	0000-0002-3525-2393
person.identifier.orcid	0000-0002-3769-5374
person.identifier.scopus-author-id	55663172600
person.identifier.scopus-author-id	7003390444
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	openAccess	por
rcaap.type	article	por
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