In this paper, we introduce a new class of models for count endogenous variables, i.e. the additive log-differentiated probability models (ALDP). This class is similar to the semi-parametric proportional hazard models used for duartion data, and has some interesting implications in terms of...

The paper investigates the pricing of derivative securities with calendar-time maturities.

The main tools and concepts of financial and actuarial theory are designed to handle standard, or even small risks. The aim of this paper is to reconsider some selected financial problems, in a setup including infrequent extreme risks. We first consider investors maximizing the expected utility...

The Wishart Autoregressive (WAR) process is a dynamic model for time series of multivariate stochastic volatility. The WAR naturally accommodates the positivity and symmetry of volatility matrices and provides closed-form non-linear forecasts. The estimation of the WAR is straighforward, as it...