The Development of Social Preferences Cobo Reyes Cano, Ramón Dominguez, José J. García Quero, Fernando José Grosskopf, Brit Lacomba Arias, Juan Antonio Lagos García, Francisco Miguel Liu, Tracy Xiao Pearce, Graeme Pearce, Graeme Social preferences Children Mini-Dictator game Cross–country comparisons Artefactual field experiment This paper examines how social preferences develop with age. This is done using a range of mini-dictator games from which we classify 665 subjects into a variety of behavioural types. We expand on previous developmental studies of pro-sociality and parochialism by analysing individuals aged 9–67, and by employing a cross country study where participants from Spain interact with participants from different ethnic groups (Arab, East Asian, Black and White) belonging to different countries (Morocco, China, Senegal and Spain). We identify a ‘U-shaped’ relationship between age and egalitarianism that had previously gone unnoticed, and appeared linear. An inverse “U-shaped” relationship is found to be true for altruism. A gender differential is found to emerge in teenage years, with females becoming less altruistic but more egalitarian than males. In contrast to the majority of previous economic studies of the development of social preferences, we report evidence of increased altruism, and decreased egalitarianism and spite expressed towards black individuals from Senegal. 2020-11-12T12:36:43Z 2020-11-12T12:36:43Z 2019-02-13 info:eu-repo/semantics/article Published version: Cobo–Reyes, R., Dominguez, J. J., García–Quero, F., Grosskopf, B., Lacomba, J. A., Lagos, F., ... & Pearce, G. (2019). The development of social preferences. Journal of Economic Behavior & Organization. [https://doi.org/10.1016/j.jebo.2019.01.018]] http://hdl.handle.net/10481/64230 10.1016/j.jebo.2019.01.018 eng http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Atribución-NoComercial-SinDerivadas 3.0 España Elsevier