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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Le papier analyse les facteurs ayant influencé les émissions de CO2 des transports sur la période 1960-2017. Il évalue pour cela la contribution relative de cinq facteurs pour les transports de passagers et de marchandises : la demande de transport, le report modal, le taux de remplissage, l’efficacité énergétique des véhicules et l’intensité carbone...
The Chair Energy and Prosperity organizes its fourth international confrence on sustainable mobility with Chaire Armand Peugeot and IMD on December 2019. Subscription are open.