Cushing B J
Ann Reg Sci. 1986 Jul;20(2):66-73. doi: 10.1007/BF01287242.
"This study focuses on the specification of distance and space in models of state-to-state population migration [in the United States]....Four models of interstate population migration are developed, with increasingly complex specifications of space. The models are estimated using 1975 to 1980 migration data for the 48 contiguous states of the United States. Common borders and bordering metropolitan areas do influence interstate population flows. Models lacking a more detailed specification of space will lose explanatory power and suffer from biases."
本研究聚焦于[美国]州际人口迁移模型中距离和空间的设定……构建了四种州际人口迁移模型，其空间设定愈发复杂。这些模型是利用美国48个毗邻州1975年至1980年的迁移数据进行估计的。共同边界和相邻的大都市区确实会影响州际人口流动。缺乏更详细空间设定的模型将失去解释力并产生偏差。
