Analytical and conceptual issues in the interpretation of doubly constrained spatial interaction models

Title: Analytical and conceptual issues in the interpretation of doubly constrained spatial interaction models
Creator: Watts, Martin
Relation: Letters in Spatial and Resource Sciences Vol. 9, Issue 2, p. 189-200
Publisher Link: http://dx.doi.org/10.1007/s12076-015-0151-5
Publisher: Springer
Resource Type: journal article
Date: 2016
Description: A major focus of applications of doubly constrained spatial interaction models has been population flows. The solutions to such models yield measures of the (constraint) multipliers and also their derivatives with respect to the impedance parameter (see O’Kelly et al. in J Geogr Syst 14:357–387, 2012; O’Kelly in Geogr Anal 42(4):472–487, 2010). These measures are derived by imposing a numeraire after solving the first order conditions of the model. The relative magnitudes of both sets of measures are shown to be robust because they are unaffected by the choice of numeraire. However the author challenges the conceptual and analytical claims about the interpretation of the solutions which are made in the papers listed above and also recommends that the emissivity and attraction concepts be redefined.
Subject: doubly constrained spatial interaction models; numeraire; commuting data; emissivity; attraction
Identifier: http://hdl.handle.net/1959.13/1344187
Identifier: uon:29363
Identifier: ISSN:1864-4031
Language: eng
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