by Bryan Caplan
The long-term effects of parenting aren't proven, says author Bryan Caplan, seen here with his family.
Emily Korff/Veralana Photography
April 22, 2011 An economics professor has a plan for raising children: have lots of them, and don't stress about nurturing their potential. Bryan Caplan, author of the book Selfish Reasons to Have More Kids, says children's potential is helped most by a positive atmosphere.
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