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Deterministic vs. Stochastic Altruism

20 September 2018 at 12:00 PM - 1:00 PM

Room 207, Campus on Viale Romania, 32

Speaker: Giovanni Ponti, Universidad de Alicante, LUISS


We report experimental evidence from a 3-person Dictator Game in which dictators decide over the distribution of probabilities of winning a fixed, indivisible, monetary prize. This evidence is compared with (i) a standard (control) treatment in which money is perfectly divisible and Dictators allocate shares of the prize across the group members, and also with (ii) a “hybrid” protocol by which a fraction of the prize is allocated deterministically, and the remainder by way of a lottery. Dictators’ decisions are framed within a (suitably modified version of) Karni and Safra (2002a)’s model of distributional justice. This allows us to identify consequentialist vs. procedural fairness, also controlling for (own-payo↵) risk aversion. Our evidence suggests that, among those not exhibiting a completely selfish behavior, both views of fairness are complementary in explaining dictators’ distributional decisions.