On a Constrained Fractional Stochastic Volatility Model

28 Aug 2016 Marie Nicolas

This paper deals with an extension of the so-called Black-Scholes model in which the volatility is modeled by a linear combination of the components of the solution of a differential equation driven by a fractional Brownian motion of Hurst parameter greater than $1/4$. In order to ensure the positiveness of the volatility, the coefficients of that equation satisfy a viability condition... (read more)

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  • PROBABILITY