A non-linear dynamic model of the variance risk premium
方差风险溢价的非线性动态模型AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究 VIX 动态、真实与风险中性测度之间的风险溢价,以及该溢价对股票收益的预测能力。
方差风险溢价的非线性动态模型AI 解读 ↓
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We propose a new class of non-linear diffusion processes for modeling financial markets data. Our non-linear diffusions are obtained as transformations of affine processes. We show that asset-pricing and estimation is possible and likelihood estimation is straightforward. We estimate a non-linear diffusion model for the VIX index under both the objective measure and the risk-neutral measure where the latter is obtained from futures prices. We find evidence of significant non-linearity under both measures. We define the difference between the P and Q drift as a measure of the variance risk premium and show that it has strong predictive power for stock returns.