A spatial analysis of gravity flows (Reprinted from vol. 6, p. 131, 1972)

被引：1

作者：

Curry, L. ^{[1
]}

机构：

[1] Univ Toronto, Toronto, ON, Canada

来源：

REGIONAL STUDIES | 2007年 / 41卷

关键词：

gravity; calibration; entropy; regression; system; feedback; information; space;

D O I：

10.1080/00343400701232140

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

Since Wilson gave theoretical substance to the gravity model, it is possible to treat it analytically. His derivation is discussed and calibration problems examined. In particular, the general constraints on the maximum entropy solution he obtains can be particularized. Here the association between the spatial distribution of jobs and homes is investigated using a spatial regression operator which is interpreted as the impulse response function of a second order difference equation. By using Z transforms, the regression and gravity operators are applied in parallel. Feedback from the resulting trip pattern allows the job-home relation to be changed sequentially. Measures of spatial entropy and joint information are introduced and related to travel entropy.

引用

页码：S9 / S25

页数：17

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