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Identification of cross and autocorrelations in time series within an approach based on Wigner eigenspectrum of random matrices

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  • Michal Sawa
  • Dariusz Grech

Abstract

We present an original and novel method based on random matrix approach that enables to distinguish the respective role of temporal autocorrelations inside given time series and cross correlations between various time series. The proposed algorithm is based on properties of Wigner eigenspectrum of random matrices instead of commonly used Wishart eigenspectrum methodology. The proposed approach is then qualitatively and quantitatively applied to financial data in stocks building WIG (Warsaw Stock Exchange Index).

Suggested Citation

  • Michal Sawa & Dariusz Grech, 2014. "Identification of cross and autocorrelations in time series within an approach based on Wigner eigenspectrum of random matrices," Papers 1407.4702, arXiv.org.
  • Handle: RePEc:arx:papers:1407.4702
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    File URL: http://arxiv.org/pdf/1407.4702
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