Option Valuation and Hedging Strategies with Jumps in the Volatility of Asset Returns
构建了一个允许风险资产波动率发生随机不连续跳跃的模型，推导了相关期权的定价公式，并分析了利用期权对冲波动率跳跃风险的交易策略。
ABSTRACT We develop a model in which the volatility of risky assets is subject to random and discontinuous shifts over time. We derive prices of claims contingent on such assets and analyze options‐based trading strategies to hedge against the risk of jumps in the return volatility. Unsystematic and systematic events such as takeovers, major changes in business plans, or shifts in economic policy regimes may drastically alter firms' risk profiles. Our model captures the effect of such events on options markets.