The Social Choice and Welfare Prize is given by the Society for Social Choice and Welfare every two years to one or two young scholars, under the age of 40, in the areas of social choice theory and welfare economics. Winners are invited to give a lecture at the Meeting of the Society for Social Choice and Welfare, and are awarded the Social Choice and Welfare Medal. Laureates *Matthew O. Jackson (2002) *Francois Maniquet (2004) *John Duggan (2006) *Tayfun Sönmez (2008) *Franz Dietrich and Christian List (2010) *Lars Ehlers and Adam Meirowitz (2012) *Vincent Conitzer and Tim Roughgarden (2014) *Fuhito Kojima and Parag Pathak (2016) *Gregory Egorov and Debasis Mishra (2018) *Pietro Ortoleva and Ariel Procaccia (2020)