Transport currently accounts for around 25-30% of global CO2 emissions and this contribution is growing rapidly. Moreover, road transport holds by far the major part in these emissions. Because of the social and political reluctance to increase fuel taxation, it is of some interest to explore...

Global warming may induce in Western Europe an increase in storms. Hence the forest managers will have to take into account the risk increase. We study the impact of storm risk at the stand level. From the analytical expressions of the Faustmann criterion and the Expected Long-Run Average Yield,...

In this paper we build a method to optimize Multi-Year Prospective Budgets. First we present a systemic model of Local Community Finances. Then, from two acceptable Multi-Year Prospective Budgets the method implements a Genetic Algorithm to generate a collection of admissible Multi-Year...

Une entreprise qui fonde sa stratégie sur la différenciation par le haut se doit de respecter un certain nombre d'engagements permettant de légitimer sa position. En effet, sur un marché concurrentiel, un positionnement haut de gamme doit pouvoir se justifier aux yeux des clients par une...

The Word Summit on Sustainable Development (Johannesburg, 2002) encouraged the application of the ecosystem approach by 2010. In this perspective, we propose a theoretical management framework that deals jointly with i) ecosystem dynamics, ii) conflicting issues of production and preservation...

Combien vaut une tonne de CO2 non émise dans l'atmosphère ? Tout dépend de ce qu'on entend par valeur ! Cette note recadre et illustre cinq définitions différentes fréquement utilisées: 1. La réduction espérée du dommage du changement climatique, 2. Le coût de réduction des...

Modeling activities and scenario building are at the heart of the economic analysis delivered by the ULCOS program. Two main objectives were followed in the framework of SP9. First the modeling team had to provide a set of coherent energy economic scenarios using POLES model. Second, the...