John van Willigen is Associate Professor of Anthropology and Behavioral Science, University of Kentucky. Thomas A. Arcury is Research Associate, Center for Developmental Change, and member of the Department of Anthropology at the University of Kentucky. Robert G. Cromley is Associate Professor of Geography at the University of Connecticut. The research upon which this paper is based was supported by grant no. 1 POlAG01358-2 from the National Institute on Aging. The authors wish to thank Kathleen M. DeWalt and Billie R. DeWalt for their comments on earlier drafts of this paper.
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Willigen et al. (1985) studied this question.
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