I study the effects of improved public information on equilibrium welfare and price dispersion, providing sufficient conditions for negative and positive effects. Public information affects welfare by reducing excessive (though rational) pessimism induced by sequential learning. Reduced...

Various approaches used in Agent-based Computational Economics (ACE) to model endogenously determined interactions between agents are discussed. This concerns models in which agents not only (learn how to) play some (market or other) game, but also (learn to) decide with whom to do that (or not).

Model-Free Reinforcement Learning has achieved meaningful results in stable environments but, to this day, it remains problematic in regime changing environments like financial markets. In contrast, model-based RL is able to capture some fundamental and dynamical concepts of the environment but...

Consider a multi-sector general equilibrium model where firms have incomplete information about the returns to scale of their production and where that information is sequentially updated once real production is observed. What is the impact of this learning dynamics on the market-wise...

This work, which shall contribute to the Fest "A Just Society: Honouring Joseph Stiglitz", discusses a major unifying theme in Joe Stiglitz monumental work, namely, the analysis of economies characterised by persistent learning and coordination hurdles. In his analysis Joe is in many respects a...

This paper investigates the impact of the history of crises on macroeconomic performance. We first study the impact of past banking crises on the probability of a future banking crisis. Applying data for 1980 - 2010 for all countries for which the required information is available, controlling...

The paper examines the effect of trend productivity growth on the determinacy and learnability of equilibria under alternative monetary policy rules. It shows that under a policy rule that responds to current period inflation and the output gap a higher trend growth rate relaxes the conditions...

The paper integrates the two-pillar Phillips curve, which explains expected inflation by the money growth trend, within a simple macro model. A Taylor-like interest rule contains also a money growth target. The model takes into account serially correlated supply and money demand shocks; the...

This paper investigates the effect of an aggressive price stabilizing monetary policy on the ability of agents to reach a rational expectations equilibrium (REE) for inflation and output. We provide a more robust policy implication than the one suggested by Bullard and Mitra (2002a,b). Using an...

The authors study the hypothesis that misperceptions of trend productivity growth during the onset of the productivity slowdown in the United States caused much of the great inflation of the 1970s. They use the general equilibrium, sticky price framework of Woodford (2002), augmented with...