Exchanging Regional Input—Output Coefficients: A Reply and Further Comments

G. J.D. Hewings, B. N. Janson

Research output: Contribution to journalArticlepeer-review


Some issues raised by Thumann in response to an earlier article by Hewings are addressed in the context of discovering efficient ways of exchanging input-output coefficients. Several extensions to the RAS procedure are reviewed; in particular, attention is focused on the issue of fixing certain coefficients prior to the application of biproportional adjustment algorithms. An appendix contains a discussion of measures which minimize the distance between two matrices. - Authors

Original languageEnglish (US)
Pages (from-to)843-854
Number of pages12
JournalEnvironment & Planning A
Issue number7
StatePublished - 1980

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Environmental Science (miscellaneous)


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