As they write in the Proceedings of the National Academy of Sciences, Bjorn Wallace of the Stockholm School of Economics and his colleagues have shown this by playing the ultimatum game with twins.

ECONOMIST: Evolution

David Cesarini, an economist at the Center for Experimental Social Science at New York University, Magnus Johannesson of the Stockholm School of Economics and others have used the database to investigate whether people's genes play a role in determining fairness and financial risk-taking.

WSJ: Twins Health Registry Is Treasure Trove for Medical Research

After years in the corporate world (at PriceWaterhouse Coopers, the Stockholm School of Economics and Oriflame Cosmetics), she returned to her roots as a stylist for Bloomingdales, Calvin Klein and the San Francisco Ballet to help companies and private individuals with appearance and personal branding.

FORBES: Are You Dressing The Part Of Your Job?