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Non-parametric news impact curve: a variational approach

Abstract : In this paper, we propose an innovative methodology for modelling the news impact curve. The news impact curve provides a non-linear relation between past returns and current volatility and thus enables to forecast volatility. Our news impact curve is the solution of a dynamic optimization problem based on variational calculus. Consequently, it is a non-parametric and smooth curve. To our knowledge, this is the first time that such a method is used for volatility modelling. Applications on simulated heteroskedastic processes as well as on financial data show a better accuracy in estimation and forecast for this approach than for standard parametric (symmetric or asymmetric ARCH) or non-parametric (Kernel-ARCH) econometric techniques.
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Contributor : Lucie Label <>
Submitted on : Friday, January 27, 2017 - 4:20:38 PM
Last modification on : Tuesday, November 17, 2020 - 11:18:17 AM


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  • HAL Id : halshs-01244292, version 2



Matthieu Garcin, Clément Goulet. Non-parametric news impact curve: a variational approach. 2016. ⟨halshs-01244292v2⟩



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