Discrete-time stochastic games with a finite number of states have been widely ap- plied to study the strategic interactions among forward-looking players in dynamic en- vironments. However, these games suffer from a "curse of dimensionality" since the cost of computing players' expectations...

Continuous-time stochastic games with a finite number of states have substantial computational and conceptual advantages over the more common discrete-time model. In particular, continuous time avoids a curse of dimensionality and speeds up computations by orders of magnitude in games with more...

Computer technology presents economists with new tools, but also raises novel methodological issues. This essay discusses the challenges faced by computational researchers, and proposes some solutions.

This paper reviews a framework for numerically analyzing dynamic interactions in imperfectly competitive industries. The framework dates back to Ericson and Pakes [1995. Review of Economic Studies 62, 53-82], but it is based on equilibrium notions that had been available for some time before,...

We analyze a fully dynamic model of price competition when firms face a learning curve and the possibility of organizational forgetting. We show that even though the leader firm may underprice the follower and this price difference may grow as the leader's cost advantage widens, the market may...

This paper develops a theory of regular Markov perfect equilibria in dynamic stochastic games. We show that almost all dynamic stochastic games have a finite number of locally isolated Markov perfect equilibria that are all regular. These equilibria are essential and strongly stable. Moreover,...

Learning-by-doing and organizational forgetting have been shown to be important in a variety of industrial settings. This paper provides a general model of dynamic competition that accounts for these economic fundamentals and shows how they shape industry structure and dynamics. Previously...

As is well-recognized, market dominance is a typical outcome in markets with network effects. A firm with a larger installed base others a more attractive product which induces more consumers to buy its product which produces a yet bigger installed base advantage. Such a setting is investigated...

This article studies the extent to which the wide gap in the wealth holdings of whites and African Americans can be explained by differences in family income and demographic characteristics.