Supplement to “Foundations for Cooperation in the Prisoners’ Dilemma”
We establish that in the Prisoners’ Dilemma, the model of Daley and Sadowski (2013) is logically distinct from three models that employ well-known forms of other regarding preferences - altruism (Ledyard, 1995; Levine, 1998), inequity aversion (Fehr and Schmidt, 1999), and reciprocity (Rabin, 1993).