The potential approach of value theory is extended with respect to a new characterizing property called conservation giving a clear interpretation of the potential. Many analogues between game theory and physics are presented. Particularly, there is a theorem of conservation of energy analogous...

L'engouement pour les energies substituables, non conventionnelles, sera-t-il economiquement viable et donc durable? Certains des interets qui se rejoignaient pour encourager l'exploitation de la biomasse a des dfins energetiques se sont progressivement emousses. Le renouveau de l'interet en...