We characterize choice rules for schools that regard students as substitutes while expressing preferences for a diverse student body. The stable (or fair) assignment of students to schools requires the latter to regard the former as substitutes. Such a requirement is in conflict with the reality...

Can mechanism design save democracy? We propose a simple design that offers a chance: individuals pay for as many votes as they wish using a number of "voice credits" quadratic in the votes they buy. Only quadratic cost induces marginal costs linear in votes purchased and thus welfare optimality...

This online appendix proves the central result in Lalley and Weyl (Forthcoming). The full text PDF for "Qaudratic Voting: How Mechanism Design Can Radicalize Democracy" may be found here: http://ssrn.com/abstract=2003531

We present an experimental study of decentralized two‐sided matching markets with no transfers. Experimental participants are informed of everyone's preferences and can make arbitrary nonbinding match offers that get finalized when a period of market inactivity has elapsed. Several insights...

How should authorities that care about match quality and diversity allocate resources in the face of uncertainty? We introduce adaptive priority mechanisms (APM) that prioritize agents based on their scores and characteristics. We show that APM uniquely implement the ex post optimal allocation....

Mechanisms used to derive optimal allocations are generally designed under the premise that agents fully know their preferences. It is often impossible to duplicate these optimal allocations when agents imperfectly observe object characteristics. I present a crowdsourcing mechanism to...

Many scarce public resources are allocated at below-market-clearing prices, and sometimes for free. Such "non-market" mechanisms necessarily sacrifice some surplus, yet they can potentially improve equity. In this paper, we develop a model of mechanism design with redistributive concerns. Agents...

We consider a stable improvement problem in a controlled school choice model which covers those of several previous studies. First, we consider the case where the priority for each school is a weak order. We derive a sufficient condition for a stable matching to be constrained efficient. It is...

We introduce a general class of simplicity standards that vary the foresight abilities required of agents in extensive-form games. Rather than planning for the entire future of a game, agents are presumed to be able to plan only for those histories they view as simple from their current...

Even though kidney exchange became an important source of kidney transplants over the last decade with the introduction of market design techniques to organ transplantation, the shortage of kidneys for transplantation is greater than ever. Due to biological disadvantages, patient populations of...