This paper has been published on the European Review of Agricultural Economics (april 2019)
This article analyzes the trade-off between yield and farmed area when a valuable species is affected by agricultural practices. It revisits, from an economic perspective, the “land-sparing versus land-sharing” debate. We show that the optimal yield is either increasing or decreasing with respect to the value of the species. Land-sparing and land-sharing are not necessarily antagonistic; for sufficiently elastic demand function, both the optimal yield and the farmed area decrease with the public value of the species. A general assessment of a second-best policy is performed, and several particular policies are considered.
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Séminaire en présence d'Adam George (SOAS, University of London). Adam George présente un modèle macroéconomique SFC environnemental britannique intégrant émissions de CO2 et investissements verts de tous les agents économiques. Le modèle trimestriel analyse l'impact des politiques énergétiques selon le rapport capital vert/capital conventionnel. Quatre scénarios fiscaux verts sont testés (2022-2035) : taxe carbone, investissement...
Le laboratoire GAEL (Grenoble Applied Economics Laboratory) et la Chaire Energie et Prospérité organisent un workshop sur l’économie de la bioénergie les jeudi 9 et vendredi 10 octobre 2025 sur le campus universitaire de Grenoble.