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Bonnefon, Jean-François, De Neys, Wim and Hopfensitz, Astrid (2013) Low second-to-fourth digit ratio predicts indiscriminate social suspicion, not improved trustworthiness detection. TSE Working Paper, n. 13-385
Centorrino, Samuele, Djemaï, Elodie, Hopfensitz, Astrid, Milinski, Manfred and Seabright, Paul (2015) A Model of Smiling as a Costly Signal of Cooperation Opportunities. Adaptive Human Behavior and Physiology, 1. pp. 325-340.