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Volatility transmission and volatility impulse response functions in European electricity forward markets

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  • Yannick LE PEN
  • Benoît SEVI

Abstract

Using daily data from March 2001 to June 2005, we estimate a VAR-BEKK model and find evidence of return and volatility spillovers between the German, the Dutch and the British forward electricity markets. We apply Hafner and Herwartz [2006, Journal of International Money and Finance 25, 719-740] Volatility Impulse Response Function(VIRF) to quantify the impact of shock on expected conditional volatility. We observe that a shock has a high positive impact only if its size is large compared to the current level of volatility. The impact of shocks are usually not persistent, which may be an indication of market efficiency. Finally, we estimate the density of the VIRF at different forecast horizon. These fitted distributions are asymmetric and show that extreme events are possible even if their probability is low. These results have interesting implications for market participants whose risk management policy is based on option prices which themselves depend on the volatility level.

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Bibliographic Info

Paper provided by CREDEN (Centre de Recherche en Economie et Droit de l'Energie), Faculty of Economics, University of Montpellier 1 in its series Cahiers du CREDEN (CREDEN Working Papers) with number 08.09.77.

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Length: 29 pages
Date of creation: 2008
Date of revision:
Handle: RePEc:mop:credwp:08.09.77

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Postal: CREDEN, Faculté d'Economie, Avenue Raymond Dugrand, CS 79606, 34960 MONTPELLIER Cedex 2, France
Phone: 33 (0)4 67 15 83 60
Fax: 33 (0)4 67 15 84 04
Web page: http://www.creden.univ-montp1.fr
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Keywords: volatility impulse response function; GARCH; non Gaussian distributions; electricity market; forward markets;

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Cited by:
  1. Lindström, Erik & Regland, Fredrik, 2012. "Modeling extreme dependence between European electricity markets," Energy Economics, Elsevier, vol. 34(4), pages 899-904.
  2. Lilian de Menezes & Melanie A. Houllier, 2013. "Modelling Germany´s Energy Transition and its Potential Effect on European Electricity Spot Markets," EcoMod2013 5395, EcoMod.

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