Heterogeneity and Interdependence: a Test Using Survival Models
نویسنده
چکیده
This research was supported by grants from the National Science Foundation and the National Institute on Aging. I am particularly grateful to Ian Domowitz, who provided many important and insightful comments on an earlier draft. Many others provided useful comments: James Coleman, Robert Mare, Lars Muus, Larry Radbill, Nancy Tuma, and an anonymous reviewer. Jean Mitchell and Nancy Winship helped with the editing. Any mistakes that remain are of course my responsibility.
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