More than 40% of US corn is now used to produce biofuels, which are used as substitutes for gasoline in transportation. Biofuels have been blamed universally for recent increases in world food prices. Many studies have shown that these energy mandates in the US and EU may have a large (30-60%)...

In this paper, the authors characterize the equilibria of Stackelberg duopolies with differentiated products, where the firms are fighting either in prices and quantities or in prices and serving capacities. It is shown that in the price-quantity case there is always rationing by the leader, but...

Price and quantity competition are compared in the dynamic game framework of a nonrenewable natural resource duopoly. It is shown that a price-decision-rule (quantity-decision-rule) strategy dominates, in terms of a higher present value of the initial resource stocks, if the resources are...

In the midwestern United States, ethanol produced from corn is mixed with gasoline to meet clean air standards. Allocating land to produce clean fuel means taking away land from farming. We examine a model in which a scarce fossil fuel (e.g., oil) causes pollution but may be substituted by a...

Environmental agreements such as the Kyoto Protocol aim to stabilize the amount of carbon in the atmosphere, which is mainly caused by the burning of nonrenewable resources such as coal. We characterize the solution to the textbook Hotelling model when there is a ceiling on the stock of...

Il existe une littérature assez abondante sur l'ordre dans lequel une société devrait utiliser ses ressources au cours du temps. Ce que nous voudrions explorer c'est l'incidence d'un progrès technique spécifique, permettant d'économiser les quantités de ressources requises par unité de...

Nous analysons l’impact de deux politiques américaines sur la production et les échanges d’éthanol (biocarburants de première génération) et d’éthanol ligno-cellulosique (biocarburant de seconde génération) aux Etats-Unis et au Brésil ainsi que sur les émissions directes et...