Model for correlations in stock markets
- 1 May 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 61 (5) , 5981-5982
- https://doi.org/10.1103/physreve.61.5981
Abstract
We propose a group model for correlations in stock markets. In the group model the markets are composed of several groups, within which the stock price fluctuations are correlated. The spectral properties of empirical correlation matrices reported recently are well understood from the model. It provides the connection between the spectral properties of the empirical correlation matrix and the structure of correlations in stock markets.Keywords
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This publication has 9 references indexed in Scilit:
- Scaling of the distribution of fluctuations of financial market indicesPhysical Review E, 1999
- Distributions of singular values for some random matricesPhysical Review E, 1999
- Hierarchical structure in financial marketsZeitschrift für Physik B Condensed Matter, 1999
- Universal and Nonuniversal Properties of Cross Correlations in Financial Time SeriesPhysical Review Letters, 1999
- Noise Dressing of Financial Correlation MatricesPhysical Review Letters, 1999
- Scaling and criticality in a stochastic multi-agent model of a financial marketNature, 1999
- Inverse cubic law for the distribution of stock price variationsZeitschrift für Physik B Condensed Matter, 1998
- Price variations in a stock market with many agentsPhysica A: Statistical Mechanics and its Applications, 1997
- Scaling behaviour in the dynamics of an economic indexNature, 1995