Anti-correlation and subsector structure in financial systems

Details Anti-correlation and subsector structure in financial systems Anti-correlation and subsector structure in financial systems

2012-01-31

arxiv.org/abs/1201.6418v1

EPL, 97 (2012) 48006

Economy

Quantitative Finance

General Finance

6 pages, 2 figures, 4 tables

Scientific paper

10.1209/0295-5075/97/48006

With the random matrix theory, we study the spatial structure of the Chinese stock market, American stock market and global market indices. After taking into account the signs of the components in the eigenvectors of the cross-correlation matrix, we detect the subsector structure of the financial systems. The positive and negative subsectors are anti-correlated each other in the corresponding eigenmode. The subsector structure is strong in the Chinese stock market, while somewhat weaker in the American stock market and global market indices. Characteristics of the subsector structures in different markets are revealed.

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