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The Doubly Constrained Model of Spatial Interaction: A More General Formulation

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  • J Ledent

    (INRS-Urbanisation, Institut National de la Recherche Scientifique, Université du Québec, 3465 rue Durocher, Montréal, Québec H2X 2C6, Canada)

Abstract

Concerned with the doubly constrained case of spatial interaction models, this paper introduces a general functional form that subsumes the usual multiplicative (Wilson) and additive (Tobler) variants as extreme variants. Specifically, this formulation depends on a scalar Λ allowed to vary between 0 (multiplicative case) and 1 (additive case). A computational procedure is suggested and then illustrated by means of an application to interregional migration data.

Suggested Citation

  • J Ledent, 1985. "The Doubly Constrained Model of Spatial Interaction: A More General Formulation," Environment and Planning A, , vol. 17(2), pages 253-262, February.
    • Handle: RePEc:sae:envira:v:17:y:1985:i:2:p:253-262
    DOI: 10.1068/a170253
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    Cited by:

    1. Daniel A. Griffith & Manfred M. Fischer, 2016. "Constrained Variants of the Gravity Model and Spatial Dependence: Model Specification and Estimation Issues," Advances in Spatial Science, in: Roberto Patuelli & Giuseppe Arbia (ed.), Spatial Econometric Interaction Modelling, chapter 0, pages 37-66, Springer.

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