How do some wealthy families remain in the upper class for many generations, while other rich families do not? That is the question author Shay O’Brien (Massachusetts Institute of Technology) tackles in the sociological study “Kinship Interlocks: How the Intimate Exchange of Wealth, Status, and Power Generates Upper-Class Persistence,” published in the April 2026 issue of the American Sociological Review.
Kinship interlocks: How the rich stay rich
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