Paper #665

Títol:

A general decomposition formula for derivative prices in stochastic volatility models

Autor:

Elisa Alòs

Data:

Febrer 2003

Resum:

We see that the price of an european call option in a stochastic volatility framework can be decomposed in the sum of four terms, which identify the main features of the market that affect to option prices: the expected future volatility, the correlation between the volatility and the noise driving the stock prices, the market price of volatility risk and the difference of the expected future volatility at different times. We also study some applications of this decomposition.

Paraules clau:

Continuous-time option pricing model, stochastic volatility, Ito's formula, incomplete markets

Codis JEL:

G130

Àrea de Recerca:

Estadística, Econometria i Mètodes Quantitatius

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