One-Third of Wage Differences Depend on Genetics, According to a Study with 44,500 Pairs of Twins

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Why do some people earn more than others? It seems clear that aspects such as access to education, cognitive abilities, hard work, family preferences, contacts and even luck play an important role. But could our genes somehow determine salary? To answer that question, researchers at the University of California at Berkeley have looked at how 44,500 pairs of American twins have gone from childhood to adult life, twenty years later. Their conclusi…