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Extreme value theory and neural network for catastrophic fall prediction: a study of year 2008-2009

Author

Listed:
  • Utkarsh Shrivastava
  • Gyan Prakash
  • Joydip Dhar

Abstract

Extreme value theory to a certain extent is successful in modelling extreme events as it assumes that outliers follow distribution other than normal. However, a mathematical model might not just be sufficient to predict extreme events. Nowadays, extreme events have become so common that investors' past experience of such situations takes over and plays important role in guiding collective behaviour during downturn. In this study, firstly extreme events are modelled using generalised extreme value (GEV) distribution. Secondly, past deviations from return levels obtained as quantile of GEV distribution and future risk of market falling below the same level are classified using perceptron network. Neural network is basically used to inculcate learning form past market movements to predict future. Trained network hence obtained is used for simulating monthly risk for catastrophic years 2008 and 2009. Comparison of actual and forecasted results indicates substantial improvement in market fall prediction.

Suggested Citation

  • Utkarsh Shrivastava & Gyan Prakash & Joydip Dhar, 2014. "Extreme value theory and neural network for catastrophic fall prediction: a study of year 2008-2009," International Journal of Information and Decision Sciences, Inderscience Enterprises Ltd, vol. 6(2), pages 193-210.
    • Handle: RePEc:ids:ijidsc:v:6:y:2014:i:2:p:193-210
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