We analyze the classical asset pricing model assuming non fully rational agents. Agents forecast future prices cum dividend through an adaptive learning rule. This assumption provides an explanation of some anomalies encountered in the empirical analysis of asset prices under full rationality:...

In modern mathematical finance the evolution of several variables such as asset prices, interest rates, latent factors is described, in a continuous time setting, through stochastic differential equations. Nevertheless, in most of the classic literature, these stochastic differential equations...

We analyze the classical asset pricing model assuming non fully rational agents. Agents forecast future prices cum dividend through an adaptive learning rule. This assumption provides an explanation of some anomalies encountered in the empirical analysis of asset prices under full rationality:...

We use the extended CIR model to value interest rate caps and floors. The extension allows arbitrary initial term structure, in the spirit of Hull and White, a crucial feature since we show that the pricing of the considered contingent claims improves dramatically after taking into account the...

In the recent years, di usion models for interest rates became very pop- ular. In this paper, we try to do a selection of a suitable di usion model for the Italian interest rates. Our data set is given by the yields on three-month BOT, from 1981 to 2001, for a total of 470 observations. We...

In a recent paper, Collin-Dufresne and Goldstein (2002) show that the movements of the yield curve and of interest rate derivatives are mostly uncorrelated, advocating the presence of unspanned volatility. This letter shows that their results can be explained in the framework of a Gaussian HJM...

In this paper, new fully nonparametric estimators of the diffusion coefficient of continuous time models are introduced. The estimators are based on Fourier analysis of the state variable trajectory observed and on the estimation of quadratic variation between observations by means of realized...

We provide clear-cut evidence for economically and statistically significant multivariate jumps (multi-jumps) occurring simultaneously in stock prices by using a novel nonparametric test based on smoothed estimators of integrated variances. Detecting multi-jumps in a panel of liquid stocks is...