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A new financial stress index model based on support vector regression and control chart

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  • Mohamed El Ghourabi
  • Amira Dridi
  • Mohamed Limam

Abstract

Financial stress index (FSI) is considered to be an important risk management tool to quantify financial vulnerabilities. This paper proposes a new framework based on a hybrid classifier model that integrates rough set theory (RST), FSI, support vector regression (SVR) and a control chart to identify stressed periods. First, the RST method is applied to select variables. The outputs are used as input data for FSI-SVR computation. Empirical analysis is conducted based on monthly FSI of the Federal Reserve Bank of Saint Louis from January 1992 to June 2011. A comparison study is performed between FSI based on the principal component analysis and FSI-SVR. A control chart based on FSI-SVR and extreme value theory is proposed to identify the extremely stressed periods. Our approach identified different stressed periods including internet bubble, subprime crisis and actual financial stress episodes, along with the calmest periods, agreeing with those given by Federal Reserve System reports.

Suggested Citation

  • Mohamed El Ghourabi & Amira Dridi & Mohamed Limam, 2015. "A new financial stress index model based on support vector regression and control chart," Journal of Applied Statistics, Taylor & Francis Journals, vol. 42(4), pages 775-788, April.
    • Handle: RePEc:taf:japsta:v:42:y:2015:i:4:p:775-788
    DOI: 10.1080/02664763.2014.986076
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    Cited by:

    1. Manxiang Qu & Yuexin Li, 2021. "Financial Risk Early-Warning Model Based on Kernel Principal Component Analysis in Public Hospitals," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-7, March.

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