Abstract
"In this paper, I examine some of the ways in which widely used migration indices are affected by the impacts of heterogeneity and selection, which act within a multistate perspective of spatial population dynamics that permits increments as well as decrements in the selectivity (and return) process. As a result, several commonly used indices of migration introduce a specification bias into the analysis--a bias that reflects the relative weighting accorded to component migration rates by the initial population compositions and spatial distributions." This paper was originally presented at the 1991 Annual Meeting of the Population Association of America.
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