This exploratory research, realized on the firms that constituted the CAC 40 index from 2000 to 2003, shows that cost reduction programs announcements have a positive impact on shareholders value. Stock market reactions depend on whether firms are in financial crisis or not but are independant...

Using the event-study methodology and multivariate regressions, this paper examines the intensity of media coverage, its determinants and its marginal effect on stock returns following chemical disasters. To do this, we build an original dataset of chemical explosions that occurred worldwide...

Cet article s'inscrit dans le prolongement des travaux concernant l'évaluation des sociétés et de la dette par la théorie des options. Dans un premier temps, nous rappelons les principaux résultats concernant la lecture optionnelle du bilan. Dans un deuxième temps, nous introduisons les...

The study reported here focused on determining what methods financial analysts use for the valuation of Initial Public Offerings. The conclusion is that practices have moved with the times and that “real” considerations are more and more often used to obtain the market value of the firm. The...

Face à la concurrence, Google a été obligé de se diversifier. Ce qui implique d'investir d'importants capitaux. Lesquels ne manquent pas depuis son introduction en Bourse en 2004.

Efficiency of financial markets is one of the most studied subjects in theoretical finance. Formalization of this idea is realised by the random walk model. Numerous tests have been developed to validate the hypothesis of identically and independently distributed innovations. But the results of...

This research provides an alternative framework for the analysis of employee stock option exercise patterns. It develops a binomial model where the exercise decision obeys to a policy that maximizes the expected utility to a representative employee exhibiting preferences as described by the...

This research provides an alternative framework for the valuation of standard employee stock options and for the analysis of exercise behavior patterns. It develops a binomial model where the exercise decision obeys to a policy that maximizes the expected utility to a representative employee...