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The IGARCH e®ect: Consequences on volatility forecasting and option trading

Author

Listed:
  • Stefano HERZEL
  • Catalin STARICA
  • Thomas NORD

Abstract

This paper studies the integrated Garch (IGARCH) e®ect, a phenomenon often encountered when estimating conditional auto-regressive models on ¯nancial time series. The analysis of twelve indexes of major ¯nancial markets provides empirical evidence of its well-spread presence especially in periods of market turbulence. We examine its impact on volatility forecasting and on trading and hedging options. We show that a strong IGARCH e®ect may have relevant consequences on trading and on risk management.

Suggested Citation

  • Stefano HERZEL & Catalin STARICA & Thomas NORD, 2007. "The IGARCH e®ect: Consequences on volatility forecasting and option trading," Quaderni del Dipartimento di Economia, Finanza e Statistica 34/2007, Università di Perugia, Dipartimento Economia.
    • Handle: RePEc:pia:wpaper:34/2007
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    File URL: http://www2.ec.unipg.it/quaderni/quaderno34web_001.pdf
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    Cited by:

    1. Damiani, Mirella & Pompei, Fabrizio & Ricci, Andrea, 2011. "Temporary job protection and productivity growth in EU economies," MPRA Paper 29698, University Library of Munich, Germany.
    2. Silvia Micheli, 2010. "Learning Curve and Wind Power," Quaderni del Dipartimento di Economia, Finanza e Statistica 81/2010, Università di Perugia, Dipartimento Economia.
    3. Francesco Venturini, 2011. "Product variety, product quality, and evidence of Schumpeterian endogenous growth: a note," Quaderni del Dipartimento di Economia, Finanza e Statistica 93/2011, Università di Perugia, Dipartimento Economia.
    4. Stefano Herzel & Marco Nicolosi & Cătălin Stărică, 2012. "The cost of sustainability in optimal portfolio decisions," The European Journal of Finance, Taylor & Francis Journals, vol. 18(3-4), pages 333-349, May.
    5. Mirella Damiani, 2010. "Labour regulation, corporate governance and varieties of capitalism," Quaderni del Dipartimento di Economia, Finanza e Statistica 76/2010, Università di Perugia, Dipartimento Economia.
    6. Davide Castellani & Fabio Pieri, 2011. "Foreign Investments and Productivity Evidence from European Regions," Quaderni del Dipartimento di Economia, Finanza e Statistica 83/2011, Università di Perugia, Dipartimento Economia.

    More about this item

    Keywords

    stock returns; volatility forecasting; GARCH(1; 1); IGARCH effect; option hedging;
    All these keywords.

    JEL classification:

    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • C16 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Econometric and Statistical Methods; Specific Distributions
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models

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