Questions of Costs About the French Bio-Fuel Sector by Year 2010

By the end of year 2010, each member state of the European Union (the EU) ought to incorporate 5.75% of bio-fuels in the total of fuels used for transportation purposes. In order to achieve such a target, tax incentives are implemented by the French government given that the production of bio-fuels still remains unprofitable, even if oil prices are about $60/barel. After a brief introduction (1), we will first demonstrate the importance borne by the cost of agricultural raw material in the total cost of biofuels (2). For this purpose a sequential multi annual LP model is used (3). Emphasis must be placed on the possible competition between food and energy crops, should the production of energy crops require land exceeding the mandatory 10% set-aside (4). An assessment of the profitability of the different types of bio-fuels is then carried out (5).bio-fuels, Common Agricultural Policy, opportunity cost, energy crops, Kyoto Protocol, Resource /Energy Economics and Policy, C61, Q18, Q42,

Economic impact of biofuel chains in France

Given the current situation with the high price of oil (an average of $53 per barrel in 2005) and the risk of global warming, the European Union (EU) is reinforcing its objectives related to the production of biofuels: they should account for 5.75% of the overall fuel consumption by 2010 in France, as opposed to 1% in 2005. In keeping with the objective set for 2010, the biodiesel derived from rapeseed is still the preferred biofuel (27.5 million hectolitres projected), compared to the ethanol derived from wheat or sugarbeet (9.3 million hectolitres projected). Our model makes it possible to foresee that there will be a competition between food and energy crops by 2006 and that this will occur even before all of the fallow areas are requisitioned. Our paper stresses the fact that the energy and economic advantages of first-generation biofuels are not sufficient to replace large quantities of petroleum resources.Resource /Energy Economics and Policy,

From Growth to Green Growth - a Framework

Green growth is about making growth resource-efficient, cleaner and more resilient without slowing it. This paper aims at clarifying this in an analytical framework and proposing foundations for green growth. This framework identifies channels through which green policies can potentially contribute to economic growth. Finally, the paper discusses the policies that can be implemented to capture co-benefits and environmental benefits. Since green growth policies pursue a variety of goals, they are best served by a combination of instruments: price-based policies are important but are only one component in a policy tool-box that can also include norms and regulation, public production and direct investment, information creation and dissemination, education and moral suasion, or industrial and innovation policies.

From growth to green growth -- a framework

Green growth is about making growth processes resource-efficient, cleaner and more resilient without necessarily slowing them. This paper aims at clarifying these concepts in an analytical framework and at proposing foundations for green growth. The green growth approach proposed here is based on (1) focusing on what needs to happen over the next 5-10 years before the world gets locked into patterns that would be prohibitively expensive and complex to modify and (2) reconciling the short and the long term, by offsetting short-term costs and maximizing synergies and economic co-benefits. This, in turn, increases the social and political acceptability of environmental policies. This framework identifies channels through which green policies can potentially contribute to economic growth. However, only detailed country- and context-specific analyses for each of these channels could reach firm conclusion regarding their actual impact on growth. Finally, the paper discusses the policies that can be implemented to capture these co-benefits and environmental benefits. Since green growth policies pursue a variety of goals, they are best served by a combination of instruments: price-based policies are important but are only one component in a policy tool-box that can also include norms and regulation, public production and direct investment, information creation and dissemination, education and moral suasion, or industrial and innovation policies.Environmental Economics&Policies,Climate Change Economics,Economic Theory&Research,Transport Economics Policy&Planning,Labor Policies

FIRMS’ RESPONSES TO NUTRITIONAL POLICIES

The aim of this paper is to examine the effects of nutritional policies on the behavior of firms, particularly in terms of food quality and prices, and to assess the potential impacts of such policies from a public health point of view. We determine how new products that are nutritionally improved can emerge in a market where incumbent firms offer competing unhealthy products. We also highlight a non-intentional effect of such policies: if consumer heterogeneity is high, then an information policy may simultaneously provide health benefits to the population as a whole but worsen the health of consumers that are less aware of nutritional effects. For a given level of nutritional tax, we determine the optimal threshold that firms must meet to avoid taxation. It appears that this threshold must not be too high if the goal of nutritional policies is to increase total health benefits without increasing health disparities between consumers. An increase in the tax level has two opposing effects. On one hand, it improves health benefits for consumers that are less aware of nutrition issues. On the other hand, because it leads to an increase in prices as a result of a reduction in the competition intensity, it decreases the cost-effectiveness of the policy.Nutrition policy, product differentiation, firms’ strategies, taxation, quality standards, public health, Agricultural and Food Policy, Consumer/Household Economics, Demand and Price Analysis, Food Consumption/Nutrition/Food Safety, Food Security and Poverty, Health Economics and Policy, L15, I18, H23,

Recent developments and prospects for the production of biofuels in the EU: Can they really be "Part of Solution"?

The European Union has launched an ambitious policy aiming at increasing the use of biofuels in land transport “with a view to contributing to objectives such as meeting climate change commitments, environmentally friendly security of supply and promoting renewable energy sources”. Another motivation, at least for some member states, is that the development of biofuels is expected to provide larger outlets for domestic farm products and new employment opportunities in rural areas and make future adjustments of the Common agricultural policy easier. The EU policy of support to energy crops, tax exemption for biofuels and mandatory incorporation targets in some member states, has resulted in a significant increase in the demand and supply of biofuels. The market share of biofuels remains modest (1 % in 2005 in the EU-25) but has increased dramatically over the last few months. The paper provides an analysis of recent developments and prospects for the production and utilization of biofuels in the EU. Its presents the potential benefits of biofuels in the EU as well as their possible drawbacks. In particular, it addresses the three related issues of energy efficiency, environmental benefits and cost competitiveness of EU biofuels.Resource /Energy Economics and Policy,

Objectives’ alignment between members and agricultural cooperatives

Members’ commitment lessens when agricultural cooperatives grow larger. Their organization becomes more complex and their membership more heterogeneous, which threatens their sustainability and leads them to implement specific mechanisms for collective decisions. We explore how the alignment of objectives between a multi-purpose cooperative and its members influences member commitment. We estimate a multinomial probit model on a cross-section sample of 3,205 members from a large agricultural cooperative in France. We assess the determinants of member commitment through four factors: the offer of new agricultural practices, the availability of outlets and supplies to members, the farm distance to the cooperative headquarters and the farm governance. We show that the adoption of new agricultural practices has a small but significant effect. The availability of outlets and supplies has the strongest effect on the economic involvement of the farmers. Other determinants, such as farm governance or geographical distance to the cooperative headquarters, also reinforce member commitment.L'engagement des adhérents diminue lorsque la taille des coopératives agricoles augmente. En effet, à mesure que la taille des coopératives augmente, leur organisation devient plus complexe, leur sociétariat plus hétérogène, ce qui menace leur durabilité et les conduit à mettre en oeuvre de nouveaux mécanismes de décisions collectives. Nous explorons comment l'alignement des objectifs entre une coopérative polyvalente et ses adhérents influence leur engagement. Nous estimons un modèle probit multinomial sur un échantillon transversal de 3 205 adhérents d'une grande coopérative agricole française. Nous évaluons les déterminants de l'engagement des adhérents à partir de quatre critères: l'offre de nouvelles pratiques agricoles, la disponibilité des débouchés pour l’adhérent au sein de la coopérative, la distance entre le siège social de l’exploitation et celui de la coopérative et la gouvernance de l’exploitation. Nous montrons que l'adoption de nouvelles pratiques agricoles a un effet faible mais significatif sur l’engagement. La disponibilité des débouchés est le facteur qui a le plus d’impact sur l’engagement des adhérents. D'autres déterminants, tels que la gouvernance de l’exploitation ou la distance au siège social de la coopérative renforcent également l'engagement des adhérents

Coherent acoustic vibration of metal nanoshells

Using time-resolved pump-probe spectroscopy we have performed the first investigation of the vibrational modes of gold nanoshells. The fundamental isotropic mode launched by a femtosecond pump pulse manifests itself in a pronounced time-domain modulation of the differential transmission probed at the frequency of nanoshell surface plasmon resonance. The modulation amplitude is significantly stronger and the period is longer than in a gold nanoparticle of the same overall size, in agreement with theoretical calculations. This distinct acoustical signature of nanoshells provides a new and efficient method for identifying these versatile nanostructures and for studying their mechanical and structural properties.Comment: 5 pages, 3 figure

Absence et attentat : l’écriture de la défiguration dans Mao II de Don DeLillo

« La violence ne peut viser qu’un visage. »Emmanuel Lévinas À la parution de Mao II (1991), dixième roman du New-Yorkais Don DeLillo, la presse spécialisée s’est emparée de manière quasi unanime de l’extrait suivant, qu’elle a jugé bon de citer comme s’il résumait problématiquement l’enjeu majeur du texte : « There’s a curious knot that binds novelists and terrorists. In the West we become famous effigies as our books lose the power to shape and influence. […] Years ago I used to think it was..