A new approach to SAM updating with an application to Egypt

cg.coverage.countryEgypt
cg.coverage.iso3166-alpha2EG
cg.coverage.regionNorthern Africa
cg.coverage.regionMiddle East
cg.coverage.regionAfrica
cg.identifier.doihttps://doi.org/10.1068/a301991en
cg.identifier.projectIFPRI - Archive
cg.issn0308-518Xen
cg.issn1472-3409en
cg.issue11en
cg.journalEnvironment and Planning A: Economy and Spaceen
cg.reviewStatusPeer Reviewen
cg.volume30en
dc.contributor.authorThissen, Marken
dc.contributor.authorLofgren, Hansen
dc.date.accessioned2025-01-29T12:57:06Zen
dc.date.available2025-01-29T12:57:06Zen
dc.identifier.urihttps://hdl.handle.net/10568/170558
dc.titleA new approach to SAM updating with an application to Egypten
dcterms.abstractWhen social accounting matrices (SAMs) are updated with fragmentary data the new column and row totals are often not all known in advance. Also, the overall total of all matrix entries may not be known. This results in a situation in which the generally used RAS method cannot be applied to update the SAM, as the outcomes become unreliable with unknown totals. In this paper a generalised version of the RAS method is developed, based on information theory. This method, which incorporates the RAS method as a special case, is more flexible with respect to necessary information and improves the accuracy of the updated SAMs. In addition to developing a generalised RAS method, we present an easily applied procedure for building SAMs which reduces the time needed to update them. The generalised RAS method and the SAM building procedure are applied to a 1991–92 SAM for Egypt.en
dcterms.accessRightsLimited Access
dcterms.available1998-11-01
dcterms.bibliographicCitationThissen, Mark; Lofgren, Hans. 1998. A new approach to SAM updating with an application to Egypt. Environment and Planning A: Economy and Space 30(11): 1991-2003. https://doi.org/10.1068/a301991en
dcterms.extentpp. 1991-2003en
dcterms.issued1998-11
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSAGE Publicationsen
dcterms.replaceshttps://ebrary.ifpri.org/digital/collection/p15738coll5/id/2610en
dcterms.subjectagricultureen
dcterms.typeJournal Article

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