Regression model
随机波动率模型 (Heston)
随机波动率模型是一种连续时间期权定价和风险框架,其中波动率遵循自身的随机过程,而不是保持恒定。Heston模型由Steven Heston于1993年提出,赋予方差一个均值回归的平方根 (CIR) 动态,并产生一个封闭形式的期权价格;它是GARCH的连续时间对应物。
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来源
- Heston, S. L. (1993). A Closed-Form Solution for Options with Stochastic Volatility with Applications to Bond and Currency Options. Review of Financial Studies, 6(2), 327-343. DOI: 10.1093/rfs/6.2.327 ↗
- Gatheral, J. (2006). The Volatility Surface: A Practitioner's Guide. Wiley. ISBN: 978-0471792512
如何引用本页
ScholarGate. (2026, June 1). Stochastic Volatility Model (Heston Model). ScholarGate. https://scholargate.app/zh/finance/stochastic-volatility-model
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