X-ray diffraction and magnetic force microscopy techniques were used to investigate the structural and the static magnetic properties of vapor-deposited cobalt films with various thicknesses t ranging from 50 to 195 nm. Texture measurements revealed that as the thickness increases, the films...

Nous cherchons a apporter une solution satisfaisante a l'enigme de la prime de risque decouverte en 1985 par Mehra et prescott.

Our study is three-fold: we, first review the non-linear tests that we suggest to use to detect non-linearities. We, next, investigate the empirical power of the tests, using simulations under the null hypothesis that we have a linear AR model. We, then, turn to empirical data: the returns of...

A compatison between the most popular methods used to value systematic risk, using simulated series is, first, porposed. It appears that the Flexible Least Squares (FLS) methos - first proposed by Kalaba et Tesfatsion (1989) and later generalized by Lutkepohl and Herwatz (1996) - outclasses its...

Depuis les travaux precurseurs de Grossman et Hart, la plupart des modeles theoriques relatifs aux OPA interpretent ces operations comme une consequence du pouvoir desciplinaire du marche, hypothese selon laquelle la creation de valeur associee aux offres publiques s'explique par la resolution...

Notre premier propos, theorique, est d'elaborer une regle de classification en intrants et en extrants des differents arguments de la fonction de profit bancaire. Nous l'utilisons ensuite dans notre etude empirique de 38 banques francaises de reseau.

In this paper, we formulate a restatement of the theory of choice under uncertainty. As an alternative to the rank-dependent expected utility model, we develop a probability-altering theory in which the transformation of probabilities is weighted by the centered outcome of the lottery which may...