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The equity heuristic is a decision rule specifying that parents should attempt to subdivide resources more or less equally among their children. This investment rule coincides with the prescription from optimality models in economics and biology in cases in which expected future return for each offspring is equal. In this article, the authors present a counterintuitive implication of the equity heuristic: Whereas an equity motive produces a fair distribution at any given point in time, itdoi:10.1093/acprof:oso/9780199744282.003.0035 fatcat:qyu2bmalnbcszi7eb3xpgx3eoa