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政大機構典藏 > 商學院 > 財務管理學系 > 期刊論文 > Item 140.119/72699

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/72699

Title:	Intraday Volatility Forecasts Using Different Seasonality Adjustment Methods
Authors:	張元晨 Chang, Yuanchen;Martin, Martens;Yaylor, Stephen J.
Contributors:	財管系
Date:	2002-07
Issue Date:	2015-01-08 17:56:45 (UTC+8)
Abstract:	In this article we compare volatility forecasts over a thirty-minute horizon for the spot exchange rates of the Deutsche mark and the Japanese yen against the U.S. dollar. Explicitly modeling the intraday seasonal pattern improves the out-of-sample forecasting performance. We find that a seasonal estimated from the log of squared returns improves with the use of simple squared returns, and that the flexible Fourier form (FFF) is an efficient way of determining the seasonal. The two-step approach that first estimates the seasonal using the FFF and then the parameters of the generalized autoregressive conditional heteroskedasticity (GARCH) model for the deseasonalized returns performs only marginally worse than the computationally expensive periodic GARCH model that includes the FFF.
Relation:	Journal of Financial Research, 25(2), 283-299.
Data Type:	article
Appears in Collections:	[財務管理學系] 期刊論文

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