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In a tractable stochastic volatility model, we identify the price of the smile as the price of the unspanned risks traded in SPX option markets. The price of the smile reflects two persistent volatility and skewness risks, which imply a downward sloping term structure of low-frequency variance...
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The parametric estimation of stochastic differential equations (SDEs) has been the subject of intense studies already … estimation procedure of the Heston model without and with jumps in the asset prices is presented. Bayesian regression combined … with the particle filtering method is used as the estimation framework. Within the framework, we propose a novel approach …
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The effects of temporal aggregation and choice of sampling frequency are of great interest in modeling the dynamics of asset price volatility. We show how the squared low-frequency returns can be expressed in terms of the temporal aggregation of a high-frequency series. Based on the theory of...
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