D. Challet, M. Marsili, Y. -C. Zhang
Published 2001-03-01, updated 2001-03-06Version 2
The Minority Game is a generic model of competing adaptive agents, which is often believed to be a model of financial markets. We discuss to which extend this is a reasonable statement, and present minimal modifications that make this model reproduce stylized facts. The resulting model shows that without speculators, prices follow random walks, and that stylized facts disappear if enough speculators take into account their market impact.
Comments: 6 pages, 2 figures. Proceedings of the NATO Advanced Research Workshop on Application of Physics in Economic Modelling, Prague 2001. 2nd version: small modification of the abstract
Price return auto-correlation and predictability in agent-based models of financial markets
Relevance of memory in Minority Games
Fluctuations and response in financial markets: the subtle nature of `random' price changes
