Fudenberg, DrewLevine, David2009-07-092009Fudenberg, Drew, and David K. Levine. 2009. Repeated games with frequent signals. Quarterly Journal of Economics 124, no. 1: 233-265.0033-55331531-4650http://nrs.harvard.edu/urn-3:HUL.InstRepos:3160491We study repeated games with frequent actions and frequent imperfect public signals, where the signals are aggregates of many discrete events, such as sales or tasks. The high-frequency limit of the equilibrium set depends both on the probability law governing the discrete events and on how many events are aggregated into a single signal. When the underlying events have a binomial distribution, the limit equilibria correspond to the equilibria of the associated continuous-time game with diffusion signals, but other event processes that aggregate to a diffusion limit can have a different set of limit equilibria. Thus the continuous-time game need not be a good approximation of the high-frequency limit when the underlying events have three or more possible values.en-US2010-03-0110.1162/qjec.2009.124.1.233