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...

We deal with the problem of outsourcing the debt for a big investment, according two situations: either the firm outsources both the investment (and the associated debt) and the exploitation to a private consortium, or the firm supports the debt and the investment but outsources the...

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...

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...

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...

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...

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...