platform must strike a balance between optimizing her own revenues and guaranteeing fairness to her (repeat) buyers and (b) the … platform is concerned with both the proportional fairness and efficiency of the allocation, and propose a hybrid algorithm … which achieves a 0:3 bi-criteria guarantee against fairness and efficiency. Finally, we build a sequence of datasets, one …

possible. We provide necessary and sufficient conditions for fairness under different market conditions on orders for … constrained RSD mechanisms. Our results show that exchanges relying on the current serialization technology cannot ensure fairness …, including exchanges using `speed bumps.' We find that specific forms of constrained RSD ensure fairness under certain …