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Extremal Approaches to Estimating Spatial Interaction
Author(s) -
Phillips Fred,
White Gerald M.,
Haynes Kingsley E.
Publication year - 1976
Publication title -
geographical analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.773
H-Index - 65
eISSN - 1538-4632
pISSN - 0016-7363
DOI - 10.1111/j.1538-4632.1976.tb01067.x
Subject(s) - comparability , computer science , econometrics , management science , mathematics , statistical physics , physics , economics , combinatorics
Two recent theoretical approaches to the gravity model of spatial interaction are examined with emphasis on the dissimilar physical and statistical theories from which they were respectively derived. Formal relationships between the two methods are demonstrated. The two approaches jointly indicate a general method of generating new hypotheses of gravity flows. This method is discussed and evaluated, and some questions of theory comparability are explored. Comments on some of the computational features of each of the two models conclude the paper.