I propose a new utility function based on the relative aversion to injustice to explain why, in classical bargaining games, classical equilibria do not hold when money is not windfall, but it is result of the effort.

This paper provides an 'escape route' from the efficiency-equity trade-off in the School Choice problem. We achieve our objective by presenting a weak notion of fairness, called τ-fairness, which is always satisfied by some allocation. Then, we propose the adoption of the Student Optimal...