Bridging the gap between the distribution of realized (ECU) volatility and ARCH modelling (of the Euro): the GARCH‐NIG model
连接 ECU 已实现波动率分布与欧元 ARCH 建模:GARCH-NIG 模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要使用五分钟收益构造已实现波动率,并连接日频 GARCH 分布模型,直接对应高频计量与波动率。
连接 ECU 已实现波动率分布与欧元 ARCH 建模:GARCH-NIG 模型AI 解读 ↓
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Abstract This paper bridges the gap between traditional ARCH modelling and recent advances on realized volatilities. Based on a ten‐year sample of five‐minute returns for the ECU basket currencies versus the US dollar, we find that the realized volatilities constructed from the summation of the high‐frequency intraday squared returns conditional on the lagged squared daily returns are approximately Inverse Gaussian (IG) distributed, while the distribution of the daily returns standardized by their realized volatilities is approximately normal. Moreover, the implied daily GARCH model with Normal Inverse Gaussian (NIG) errors estimated for the ECU returns results in very accurate out‐of‐sample predictions for the three years of actual daily Euro/US dollar exchange rates. Copyright © 2002 John Wiley & Sons, Ltd.