Improving forecasts of GARCH family models with the artificial neural networks: An application to the daily returns in Istanbul Stock Exchange


Bildirici M. E. , Ersin O. O.

EXPERT SYSTEMS WITH APPLICATIONS, cilt.36, ss.7355-7362, 2009 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 36 Konu: 4
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.eswa.2008.09.051
  • Dergi Adı: EXPERT SYSTEMS WITH APPLICATIONS
  • Sayfa Sayısı: ss.7355-7362

Özet

In the study, we discussed the ARCH/GARCH family models and enhanced them with artificial neural networks to evaluate the volatility of daily returns for 23.10.1987-22.02.2008 period in Istanbul Stock Exchange. We proposed ANN-APGARCH model to increase the forecasting performance of APGARCH model. The ANN-extended versions of the obtained GARCH models improved forecast results. It is noteworthy that daily returns in the ISE show strong volatility clustering, asymmetry and nonlinearity characteristics. (C) 2008 Elsevier Ltd. All rights reserved.