A simple model of price formation
Statistical Mechanics
2009-11-07 v2 Statistical Finance
Abstract
A simple Ising spin model which can describe the mechanism of price formation in financial markets is proposed. In contrast to other agent-based models, the influence does not flow inward from the surrounding neighbors to the center site, but spreads outward from the center to the neighbors. The model thus describes the spread of opinions among traders. It is shown via standard Monte Carlo simulations that very simple rules lead to dynamics that duplicate those of asset prices.
Cite
@article{arxiv.cond-mat/0101001,
title = {A simple model of price formation},
author = {K. Sznajd-Weron and R. Weron},
journal= {arXiv preprint arXiv:cond-mat/0101001},
year = {2009}
}
Comments
Version 2: 4 pages, 4 figures; added more stringent statistical analysis; to appear in Int. J. Modern Physics C, Vol. 13, No. 1 (2002)