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Modelling Commodity Flows on Trade Networks: Retrospect and Prospect
Umeå University, Faculty of Social Sciences, Department of Economics. Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM).
Umeå University, Faculty of Social Sciences, Centre for Regional Science (CERUM). Umeå University, Faculty of Social Sciences, Department of Economics.ORCID iD: 0000-0001-6121-377x
1989 (English)Report (Other academic)
Abstract [en]

Various approaches to the estimation of commodity flow or trade share matrices across world trade networks are examined. Some serious drawbacks associated with the use of spatial price equilibrium models are identified, and a case is made for combining two or more individual approaches, such as may be found in "dispersed" spatial price equilibrium models or in computable general equilibrium models which cater for spatial heterogeneity. It is found that some variant of the gravity model may be a reliable guide to trade share patterns in the long run, particularly in a world of differentiated products and increasing returns to scale. A conclusive finding is that quite different models ought to be adopted for different commodities (i.e. markets) in the short and medium term perspective.

Place, publisher, year, edition, pages
Umeå: Umeå Universitet , 1989. , p. 31
Series
Umeå economic studies, ISSN 0348-1018 ; 194
Keywords [en]
Trade networks, Gravity, Entropy, Input-Output, Spatial Price Equilibrium, ICGE, SCGE, CGE
National Category
Economics
Research subject
Economics
Identifiers
URN: urn:nbn:se:umu:diva-156571OAI: oai:DiVA.org:umu-156571DiVA, id: diva2:1290171
Note

This paper has been written as a contribution to a forthcoming "Festschrift" in honour of Walter Isard (the founder of regional science). Financial support from the Swedish Transport Research Board (TFB) is acknowledged.

Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-03-20Bibliographically approved

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Westin, Lars

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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