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An Investigation of Implied Volatility During Financial Crisis:Evidence From Australian Index Options

机译:金融危机期间隐含波动的调查:来自澳大利亚指数选择的证据

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Volatility implied by an option pricing model is seen as the market participants' assessment of volatility. Past studies documented that implied volatility based on an option pricing model is found to outperform the historical volatility in forecasting future realised volatility. Thus, this study examines the implied volatility smiles and term structures in the Australian S&P/ASX 200 index options from the year 2001 to 2010, which covers the global financial crisis in the mid-2007 until the end of 2008. The results show that the implied volatility rises significantly during the crisis period, which is three time the rate before crisis.
机译:选项定价模型所暗示的波动性被视为市场参与者对波动性的评估。过去的研究记录了基于期权定价模型的暗示波动性,以优于预测未来实现波动性的历史波动性。因此,本研究审查了2001年至2010年澳大利亚标准普尔200指数方案中隐含的波动性笑容和术语结构,涵盖了2007年中期的全球金融危机直到2008年底。结果表明在危机期间,暗示波动显着上升,这是危机前的三次速度。

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