Intra-day volatility components in FTSE100 stock index futures

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Recent research has suggested that intra-day volatility may contain both short-run and long-run components due to the existence of heterogeneous information flows or heterogeneous market agents (Andersen & Bollerslev, 1997a, 1997b; Mu¨ ller et al., 1997). We report direct evidence for the existence of such a volatility decomposition in intra-day UK FTSE-100 futures returns data at frequencies of one hour and higher using the permanent–transitory component variance model of Engle and Lee (1993). Moreover, the transitory component identified exhibits rapid decay, volatility at the half-day frequency being completely dominated by the highly persistent permanent component. The model also is able to capture all dependency within the data at frequencies of one hour and lower.

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关键词：Volatility Components Component futures future futures Stock Index Volatility Components

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Hello！Could you share the FTSE-100 futures returns data? Thanks!