This paper investigates the dynamics in a simple present discounted value asset pricing model with heterogeneous beliefs. Agents choose from a finite set of predictors of future prices of a risky asset and revise their 'beliefs' in each period in a boundedly rational way, according to a 'fitness mea
Endogenous fluctuations in a simple asset pricing model with heterogeneous agents
โ Scribed by Andrea Gaunersdorfer
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 461 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0165-1889
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper we study the adaptive rational equilibrium dynamics in a simple asset pricing model introduced by Brock and Hommes (System Dynamics in Economic and Financial Models, Wiley, Chichester, 1997, pp. 3}44; Journal of Economic Dynamics and Control, 22, 1998, 1235}1274). Traders have heterogeneous expectations concerning future prices and update their beliefs according to a risk adjusted performance measure and to market conditions. Further, also their expectations about conditional variances of returns vary over time. We show that even for the simple case where agents can only choose between two di!erent predictors complicated dynamics arise and we analyse the bifurcation routes to chaos.
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