This paper develops an adaptive learning scheme for an asset market with heterogeneous traders. We introduce the concept of a perfect forecasting rule for fundamentalists which generates rational expectations in the presence of chartists whose expectations are not necessarily rational. In the...

This paper provides an adaptive learning algorithm for linear stochastic models with expectational leads in which forecasts for an arbitrary period ahead of the current state feed back into the economic system. The concept of an unbiased forecasting rule with generates rational expectations...

We consider a quantity-setting duopoly market where firms lack perfect knowledge of the market demand function. They use estimated and therefore misspecified demand functions instead and determine their optimal strategies from the corresponding subjective payoff functions. The central issue of...

This paper discusses the relationship between premia for macroeconomic risk in banking, aggregate behavior, and banking crises. We consider a competitive banking system embedded in an overlapping generation model subject to repeated macroeconomic shocks. We highlight how risk premia decline when...

This paper studies the question to what extent premia for macroeconomic risks in banking are sufficient to avoid banking crises. We investigate a competitive banking system embedded in an overlapping generation model subject to repeated macroeconomic shocks. We show that even if banks fully...

This paper investigates a financial market in which investors with linear mean-variance preferences and multiperiod planning horizons of arbitrary finite length interact. Given heterogeneous subjective beliefs, the temporary equilibrium map determining market clearing prices is calculated...

This paper formalizes the price and asset allocation mechanism of multi-unit double auctions in Xetra, the electronic equity trading system operated by the German stock exchange. The trading principles are embedded into the classical theory of quantity rationing. The properties of Xetra auctions...

We explore the impact of sophistication in risk management as required by Basel II on banking stability and market conditions. We compare a competitive banking system in which only average ratings are available with a competitive system in which banks are able to assess the default risk of...

We investigate the question of whether sophistication in risk management fosters banking stability. We compare a simple banking system in which an average rating is used with a sophisticated banking system in which banks are able to assess the default risk of entrepreneurs individually. Both...

This paper studies the consumption-investment problem of a consumer with a multi-period planning horizon under uncertainty. Such a setting occurs naturally in stochastic OLG models with multi-period-lived consumers. We provide a rigorous characterization of consumption-investment strategies...