The paper proposes an original class of conditionally heteroskedastic models aimed to capture a new concept of asymmetry. Not only past up and down moves of stock market returns have different impacts on the conditional variance, but also, positive and negative changes are governed by different...

This paper studies a classical extension of the Black and Scholes model of option pricing, often known as the Hull and White model. Our specificity is that the volatility process is assumed not only to be stochastic, but also to have long memory features and properties. We study here the...

Estimation du prix d'une option sur maximum proche de sa maturite.

We compute the optimal investment-consumption policy for an agent that is able to invest upon two non-risky assets, one liquid and the other illiquid -which means that transaction costs have to be paid when he buys or sells this last asset. An equilibrium model then gives us a way to compute the...

In this paper we show how the order of Linear Stochastic Dominance proposed by Gollier (1995) can be applied to situations with dependent risky assets.

We provide a monotonic transformation of an initial diffusion with a level-dependent diffusion parameter that yields a second, deterministic parameter process. Altering the diffusion parameter while maintaining the original Brownian motion at the expense of the drift can be viewed as a...

This paper reviews the application of OR to financial markets. After considering reasons for the attractiveness of general finance problems to Or researchers, the main types of financial market problem amenable to OR are identified, and some of the many problems solved using OR are documented.