Recent petroleum crises, rapidly increasing its prices and uncertainties concerning petroleum availability threaten the sustainable development of the world economy. Both the environmental concern and availability of fuels greatly affect fuel trends for transportation vehicles. The present work...

In this paper, we study the impact of fuel availability on demand for alternative-fuel vehicles, using data from a survey of some 600 potential car buyers in Germany. The survey was conducted as a computer-assisted personal interview and included a choice experiment involving cars with various...

Hemp (Cannabis Sativa L.) is a herbaceous crop with a potential production of 12 tons of dry matter per hectare and a seed output of 0.5–2 tons per hectare, depending on its handling. The agro-ecological aspects and the high yield of vegetable biomass from hemp farming are the factors...

A Life Cycle Assessment (LCA) of the agricultural production of wheat and barley grain to be used as a raw material for bioethanol production in Spain is performed. The objective of the work presented is to compare the environmental impact of the production of these two alternative raw materials...

The shale gas revolution in the United States has dropped the price of natural gas (NG) significantly. Combined with new fuel and vehicle technologies, an opportunity exists to expand the use of NG throughout the economy, including in the light-duty fleet of cars and trucks. This expansion could...

We consider a situation where an exhaustible-resource seller faces demand from a buyer who has a perfect substitute but there is a time-to-build delay for the substitute. We that find in this simple framework the basic implications of the Hotelling model (1931) are reversed: over time the stock...

Biofuels from microalgae are currently the subject of many research projects to determine their feasibility as a replacement for fossil fuels. In order to be a successful candidate, there must be enough fertilizers available to support large scale production. Commercial fertilizers are available...