Brian Caplan presents the case for the null hypothesis on whether parenting matters: http://static1.1.sqspcdn.com/static/f/468275/26581519/1443970707010/rs144transcript.pdf?token=bbTwsoLYtIuMjYG35DTsvocxYSg%3D …pic.twitter.com/svJmPXCQk0
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@jim_dowling People in Sweden look different too. Question isn't presence of difference but of attribution. Evidence suggests it's genetic.
@patrickc Evidence based on twins that only move between US states and not between cultures is not good evidence. Agree genetic v important.
@patrickc My concern is misuse of this research by overworked parents who need to rationalize that overworking at the kids expense is ok.
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