
On the realized volatility of the ECX CO2 emissions 2008 futures contract: distribution, dynamics and forecasting
Sévi, Benoît; Chevallier, Julien (2011), On the realized volatility of the ECX CO2 emissions 2008 futures contract: distribution, dynamics and forecasting, Annals of Finance, 7, 1, p. 1-29. http://dx.doi.org/10.1007/s10436-009-0142-x
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Article accepté pour publication ou publiéDate
2011Journal name
Annals of FinanceVolume
7Number
1Publisher
Springer
Pages
1-29
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This article documents the conditional and unconditional distributions of the realized volatility for the 2008 futures contract in the European climate exchange (ECX), which is valid under the EU emissions trading scheme (EU ETS). Realized volatility measures from naive, kernel-based and subsampling estimators are used to obtain inferences about the distributional and dynamic properties of the ECX emissions futures volatility. The distribution of the daily realized volatility in logarithmic form is shown to be close to normal. The mixture-of-normals hypothesis is strongly rejected, as the returns standardized using daily measures of volatility clearly departs from normality. A simplified HAR-RV model (Corsi in J Financ Econ 7:174–196, 2009) with only a weekly component, which reproduces long memory properties of the series, is then used to model the volatility dynamics. Finally, the predictive accuracy of the HAR-RV model is tested against GARCH specifications using one-step-ahead forecasts, which confirms the HAR-RV superior ability.Subjects / Keywords
Intraday data; Forecasting; CO2 price; Realized volatility; HAR-RV; Emissions markets; EU ETSRelated items
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