We study the effects of affirmative action through endogenous set-asides. We propose a share auction for dual sourcing in which more intensive affirmative action strengthens the favoured provider. This has the potential to level the playing field and induce more competitive procurement overall....

This paper introduces tau-fairness as a compromise solution reconciling Pareto efficiency and equity in School Choice Problems. We show that, by considering a weak notion of equity that we refer to as lambda-equity, it is possible to contribute positively to solve an open debate, originated by...