In this paper we study the effect that mean-reverting components in the arithmetic dynamics of electricity spot price … have on the price of a call option on a swap. Our model allows for seasonal effects, spikes, and negative values of the … price of electricity. We show that for sufficiently large delivery periods of the swap contract, the error that one makes by …

We consider a stochastic volatility model of the mean-reverting type to describe the evolution of a firm’s values … default probability. Our simulation results indicate that the stochastic volatility model tends to predict higher default … probabilities than the corresponding Merton model if a firm’s credit quality is not too low. Otherwise the stochastic volatility …