Levati, Maria Vittoria; Ploner, Matteo; Traub, Stefan - Max-Planck-Institut für Ökonomik <Jena> / Abteilung … - 2007
We use a two-person public goods experiment to distinguish betweene±ciency and fairness as possible motivations for cooperative behavior.Asymmetric marginal per capita returns allow only the high-productivityplayer to increase group payo®s when contributing positive amounts....