The development of an intervening opportunities model with spatial dominance effects |
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Authors: | Siaw Akwawua James A Pooler |
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Institution: | (1) Department of Geography, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5A5 (e-mail: akwawua@artslab.usask.ca; jpooler@sympatico.sk.ca), CA |
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Abstract: | In this paper an intervening opportunities model with spatial dominance is developed. The usual assumption in spatial theory
is that decision makers are influenced not just by the size of a destination or distance but by these two factors in combination, that is, spatial dominance. Decision-makers will have more knowledge about, and clearly perceive destinations that exert
the greatest amount of spatial dominance on their origins, just as they would primate cities. Thus destinations are ranked
in terms of the spatial dominance calculated for each destination. Empirical verification of the model utilizes state-to-state
migration flow data for the US. Calibration results compare favourably with the traditional intervening opportunities model
and the production constrained gravity model.
Received: 7 October 1999/Accepted: 15 June 2000 |
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Keywords: | : Spatial theory dominance intervening opportunities distance migration flows decision-makers primate cities |
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