The purpose of this paper is to examine the possibility of a social choice rule to implement a social policy for “securing basic well-being for all.†The paper introduces a new scheme of social choice, called a social relation function (SRF), which associates a reflexive and transitive...

We examine the socially optimal wealth distribution in a two-person two-good model with heterogeneous workers and asymmetric social interactions where only one (social) individual derives positive or negative utility from the leisure of the other (non-social) individual. We show that the...

This paper surveys the literature on group selection. I describe the early contributions and the group selection controversy. I also describe the main approaches to group selection in the recent literature; fixation, assortative group formation, and reproductive externalities. -- Altruism ; spite...