Users of the BitTorrent file-sharing protocol and its variants are incentivized to contribute their upload capacity in a bilateral manner: downloading is possible in return for uploading to the same user. An alternative is to use multilateral exchange to match user demand for content to...

We study optimal pricing strategies for ride-sharing platforms, such as Lyft, Sidecar, and Uber. Analysis of pricing in such settings is complex: On one hand these platforms are two-sided -- this requires economic models that capture the incentives of both drivers and passengers. On the other...

Medicare has sought to improve patient care through pay-for-performance (P4P) programs that better align hospitals' financial incentives with quality of service. However, the design of these policies is subject to a variety of practical and institutional constraints, such as the use of "small"...

A seller in an online marketplace with an effective reputation mechanism should expect that dishonest behavior results in higher payments now, while honest behavior results in higher reputation – and thus higher payments – in the future. We study two widely used classes of reputation...

We study a class of stochastic dynamic games that exhibit strategic complementarities between players; formally, in the games we consider, the payoff of a player has increasing differences between her own state and the empirical distribution of the states of other players. Such games can be used...

The growth of mobile applications on smartphones and tablets ("apps") ranks as one of the most astonishing technological developments of the recent past. The marketplaces for these mobile apps (i.e., the Apple iOS App Store and Google Play) are a significant disruptive change in the way content...

In a large online market, buyers were given the opportunity to signal their relative preferences over price and quality—first experimentally, then later as the default experience in the market. The possibility of signaling caused substantial sorting by sellers to buyers of the right...