This paper studies the optimal mechanisms for a seller with imperfect commitment who puts up for sale one individual unit per period to a single buyer in a dynamic game. The buyer's willingness to pay remains constant over time and is his private information. In this setting, the seller cannot...

For a repeated procurement problem, we compare two stylized negotiating cultures which differ in how the buyer uses an entrant to exert pressure on the incumbent resembling U.S. style and Japanese style procurement. In each period, the suppliers are privately informed about their production...

This paper shows that the possibility of collusion between an agent and a supervisor imposes no restrictions on the set of implementable social choice functions (SCF) and associated payoff vectors. Any SCF and any payoff profile that are implementable if the supervisor's information was public...

We study mediated many-to-many matching in markets in which valuations evolve over time as the result of shocks, learning through experimentation, or a preference for variety. The analysis uncovers the key tradeoffs that platforms face in the design of their matching protocols. It shows that the...