We study mechanism design in dynamic nonmonetary markets where objects are allocated to unit-demand agents with private types and quasi-linear payoffs in their waiting costs. We consider a general class of mechanisms that determine the joint distribution of the object assigned to each agent and...

We extend the scope of random allocation mechanisms, in which the mechanism first identifies a feasible "expected allocation" and then implements it by randomizing over nearby feasible integer allocations. Previous literature had shown that the cases in which this is possible are sharply...