We develop new Monte Carlo techniques based on stratifying the stock's hitting-times to the barrier for the pricing and Delta calculations of discretely-monitored barrier options using the Black-Scholes model. We include a new algorithm for sampling an Inverse Gaussian random variable such that...

This paper explores the first hitting times for doubly skewed Ornstein–Uhlenbeck (OU) processes. The explicit Laplace transforms of the first hitting times are obtained in terms of Hermite functions, and the means of the first hitting times can be derived as well. We also show the hitting time...

The non-stationary gamma process is a non-decreasing stochastic process with independent increments. By this monotonic behavior this stochastic process serves as a natural candidate for modelling time-dependent phenomena such as degradation. In condition-based maintenance the first time such a...