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Equilibrium approach of asset and option pricing under Levy process and stochastic volatility

机译:征费过程和随机波动下资产和期权定价的均衡方法。

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摘要

This paper studies the equity premium and option pricing under the general equilibrium framework taking into account stochastic volatility. We establish analytical expressions for the equity premium and pricing kernel of the stock process. Moreover, the equilibrium option pricing formula is derived by the Fourier transformation method. Numerical results show that our model is superior to the previous model with constant volatility in explaining some financial phenomena, such as negative variance risk premium, implied volatilities and negative skewness risk premium. As the price of the underlying asset is modeled as the exponential of the Levy process with stochastic volatility, our model is more general than the existing equilibrium pricing models.
机译:本文在考虑随机波动的情况下研究了一般均衡框架下的股权溢价和期权定价。我们为股票过程的股权溢价和定价核心建立分析表达式。此外,均衡期权定价公式是通过傅立叶变换法得出的。数值结果表明,我们的模型在解释某些财务现象(例如负方差风险溢价,隐含波动率和负偏度风险溢价)方面优于具有恒定波动性的先前模型。由于基础资产的价格被建模为具有随机波动率的征费过程的指数,因此我们的模型比现有的均衡定价模型更具通用性。

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