Self-organized model for information spread in financial markets
Institute for Theoretical Physics, Cologne University,
50923 Köln, Germany
Published online: 15 July 2000
A self-organized model with social percolation process is proposed to describe the propagations of information for different trading ways across a social system and the automatic formation of various groups within market traders. Based on the market structure of this model, some stylized observations of real market can be reproduced, including the slow decay of volatility correlations, and the fat tail distribution of price returns which is found to cross over to an exponential-type asymptotic decay in different dimensional systems.
PACS: 89.90.+n – Other topics of general interest to physicists / 87.23.Ge – Dynamics of social systems / 05.45.Tp – Time series analysis
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000