Share repurchases are transactions which are supposed to cause a market reaction through a signaling approach. However looking only at cumulated abnormal returns (CARs)is insufficient and the results are sometimes contradictory. We introduce the concept of informativeness to assess if...

New value indicators are not used in the same way everywhere. In some cases, they are only used to provide financial information whereas in others, they are the basis for organising internal management. Sometimes they are merely used as financial analysis tools.

Analyse de la logique de contrat entre les acteurs financiers de l'entreprise, prenant en compte les problèmes d'asymétrie d'information et d'incitation. Les relations entre groupes de contrôle et actionnaires minoritaires sont une caractéristique du fonctionnement des entreprises étudiée...