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Behaviour 150 (2013) 713–735 brill.com/beh Two studies on the interplay between social preferences and individual biological features S. Sanchez-Pages a , b , ∗ and E. Turiegano c a Department of Economic Theory, University of Barcelona, Avenida Diagonal 690, 08034 Barcelona, Spain b School of Economics, University of Edinburgh, Edinburgh, UK c Departamento de Biología, Universidad Autónoma de Madrid, Spain * Corresponding author’s e-mail address: sanchez.pages@ub.edu Accepted 6 March 2013 Abstract Biological features and social preferences have been studied separately as factors influencing human strategic behaviour. We run two studies in order to explore the interplay between these two sets of factors. In the first study, we investigate to what extent social preferences may have some biological underpinnings. We use simple one-shot distribution experiments to attribute subjects one out of four types of social preferences: self-interested (SI), competitive (C), inequality averse (IA) and efficiency-seeking (ES). We then investigate whether these four groups display differences in their levels of facial fluctuating asymmetry (FA) and in proxies for exposure to testosterone during phoetal development and puberty. We observe that development-related biological features and social preferences are relatively independent. In the second study, we compare the relative weight of these two set
Behaviour – Brill
Published: Jan 1, 2013
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