April 3rd, 2017
The impacts of climate change on French agricultural productivity
February 6th, 2017
Land use analysis and ecosystem services
Land use and land use change are among the major human pressures on the environment, especially on ecosystem services. This paper investigates the consequences of land use and land use change on biodiversity conservation and carbon sequestration. It gives insights about the trade-offs between private landowner economic goal and environmental objectives through a theoretical and an econometric models. We implement a theoretical approach where a representative landowner compares the land use rents to choose the optimal land use. Carbon sequestration and biodiversity are introduced through suitable indicators. We highlight trade-offs between economic (profit maximization) and environmental objectives (carbon sequestration and biodiversity conservation) by implementing different public policy scenarios (through taxes and subsidies). We test the previous insights with an econometric application. A land use share model is estimated for major land uses in France. Land use is explained by economic variables (land rents) and on biophysical variables (climate, soil characteristics). Several ecosystem services are taking into account and are function of land use share.
January 30th, 2017
Pollution-adjusted productivity changes in French suckler cow farms: The use of a generalized multiplicatively complete Färe-Primont index
January 9th, 2017
Ressources renouvelables et aversion à l'inégalité : quelles conséquences pour le futur ?
Stellio Del Campo
This paper addresses intragenerational and intergenerational issues about a renewable natural resource exploitation. In particular, we analyze how different equity views, represented through a change in the intragenerational inequality aversion, influence the possible development paths for future generations. We suppose an agent has access to a renewable resource and works to exploit it, while another agent does not have access to it. A social planner implements a transfer mechanism from the former to the latter. We show that if the worker is originally better-off than the receiver, inequality aversion has a negative effect on the resource stock with a lump-sum transfer, but potentially a positive effect with a proportional tax. Reciprocally, the higher the stock the higher the possibilities for future consumptions. These links strongly suggest to deal jointly with the two equity dimensions in order to design consistent environmental policies.
December 12th, 2016
Les interrelations entre services écosystémiques et le rôle des politiques agroenvironnementales