This study observes that no group strategy-proof mechanism satisfies even a fairly weak notion of stability in a school choice setting. In response to this result, we introduce two monotonicity axioms, which we call top-dropping monotonicity and extension monotonicity, as alternatives to group...

Amid recent calls for equity, many tech firms have initiated policies to provide monetary and educational support for minority entrepreneurs on their platforms. These firms' digital platforms also have mechanism design choices at their disposal to augment such efforts and further promote...

This paper studies the optimal refund mechanism when an uninformed buyer can privately acquire information about his valuation over time. In principle, a refund mechanism can specify the odds that the seller requires the product returned while issuing a (partial) refund, which we call stochastic...