1,721,102 research outputs found
Nuisible ou gibier ? Une analyse économique de la chasse des grands animaux en France
Full text linkIncreasing populations of big game in France, including wild boar, has resulted in an increase in collective damages. However, this species is not only regarded as harmful as it is valued by the practice of hunting. The article aims to characterize the social optimum by engaging natural resource economics. The optimum density of game populations is defined from a bio-economic model that takes into account all the costs and profits relating to hunting and the presence of game. It is compared to that corresponding to the hunters’ optimum and to the “tragedy of the commons”. The analytical framework allows an economic interpretation of the evolution of hunting in France and of the institutional and legislative context, while focusing on issues of property rights and externalities. The model developed is then used to discuss game management policies and recommendations on economic tools for these policies
Evaluation économique de l’offre et de la demande de services environnementaux sur le lac au Duc
No full textInternational audienc
Valeurs économiques de la qualité des sols en agriculture : approches statique et dynamique
No full textValeurs économiques de la qualité des sols en agriculture : approches statique et dynamiqu
Les mesures halio-environnementales : un outil et une aquaculture durables?
No full textNational audienceRéflexion issue d’un travail réalisé par F. PACRAUD et financé par la Région Bretagn
Impact of private labels and promotion on ecolabeled food
No full textWe use revealed preference to determine consumers’ preferences for organic and fair trade food products. We especially focus on the impact of private labels and promotion on organic milk, organic eggs and fair trade coffee demands. Expenditure elasticities show organic milk, privete-labeled eggs and national brand fair trade coffee are necessity goods while national brand eggs and private-labeled fair trade coffee are normal goods. We find demand for national brand organic milk is considerably elastic while demands for all other ecolabeled goods are inelastic. Cross-price elasticities show that national brand organic and fair trade goods are substitutes to their conventional counterparts while national brand ecolabeled goods are complements to private-labeled conventional counterpart. Finally, promotion for organic products has a positive impact on private-labeled organic product demand while promotion for fair trade products has a positive impact on national brand fair trade coffee
Impact of private labels and promotion on ecolabeled food
No full textWe use revealed preference to determine consumers’ preferences for organic and fair trade food products. We especially focus on the impact of private labels and promotion on organic milk, organic eggs and fair trade coffee demands. Expenditure elasticities show organic milk, privete-labeled eggs and national brand fair trade coffee are necessity goods while national brand eggs and private-labeled fair trade coffee are normal goods. We find demand for national brand organic milk is considerably elastic while demands for all other ecolabeled goods are inelastic. Cross-price elasticities show that national brand organic and fair trade goods are substitutes to their conventional counterparts while national brand ecolabeled goods are complements to private-labeled conventional counterpart. Finally, promotion for organic products has a positive impact on private-labeled organic product demand while promotion for fair trade products has a positive impact on national brand fair trade coffee
Valeurs économiques de la qualité des sols en agriculture : approches statique et dynamique
No full textValeurs économiques de la qualité des sols en agriculture : approches statique et dynamiqu
Valeurs économiques de la qualité des sols en agriculture : approches statique et dynamique
No full textabsen
Sustainable harvest of a native species and control of an invasive species : a bioeconomic model of a commercial fishery invaded by a space competitor
No full textThis paper deals with the control of an invasive species, void of market value, and acting as a space competitor for a valuable native harvested species. It presents a theoretical bioeconomic model describing the interacting dynamics of the two species and accounting for the undesirable consequences of native stock harvesters’ behaviour on the spread of invasion. Dynamic optimisation of the model displays the existence of a time-path leading to an optimal stationary steady-state solution. Then, the optimal control model is applied to the bay of Saint-Brieuc scallop fishery (France)
Sustainable harvest of a native species and control of an invasive species : a bioeconomic model of a commercial fishery invaded by a space competitor
No full textThis paper deals with the control of an invasive species, void of market value, and acting as a space competitor for a valuable native harvested species. It presents a theoretical bioeconomic model describing the interacting dynamics of the two species and accounting for the undesirable consequences of native stock harvesters’ behaviour on the spread of invasion. Dynamic optimisation of the model displays the existence of a time-path leading to an optimal stationary steady-state solution. Then, the optimal control model is applied to the bay of Saint-Brieuc scallop fishery (France)
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