Land Sharing vs Land Sparing to Conserve Biodiversity: How Agricultural Markets Make the Difference

land-sharing/land-sparing, comment les marchés font la différence

Marion Desquilbet, Bruno Dorin and Denis Couvet ()
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Denis Couvet: CESCO - Centre d'Ecologie et des Sciences de la COnservation - MNHN - Muséum national d'Histoire naturelle - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique

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Abstract: In this paper, we model the supply and demand for agricultural goods and assess and compare how welfare, land use, and biodiversity are affected under intensive and extensive farming systems at market equilibrium instead of at exogenous production levels. As long as demand is responsive to price, and intensive farming has lower production costs, there exists a rebound effect (larger market size) of intensive farming. Intensive farming is then less beneficial to biodiversity than extensive farming is, except when there is a high degree of convexity between biodiversity and yield. On the other hand, extensive farming leads to higher prices and smaller quantities for consumers. Depending on parameter values, it may increase or decrease agricultural producer profits. Implementing Bactive^land sparing by zoning some land for agriculture and other land for conservation could overcome the rebound effect of intensive farming, but we show that farmers have then incentives to encroach on land zoned for conservation, with higher incentives under intensive farming. We also show that the primary effect of the higher prices associated with extensive farming is a reduction of animal feed production, which has a higher price elasticity of demand, whereas less of an effect is observed on plant-based food production and almost no effect is observed on biofuel production if there are mandatory blending policies.

Keywords: Biodiversity Conservation Agriculture Land use Markets Welfare; Biodiversity; Conservation; Agriculture; Land use; Markets; Welfare (search for similar items in EconPapers)
Date: 2016-09-08
Note: View the original document on HAL open archive server: https://hal.science/hal-03948463v1
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Published in Environmental Modeling & Assessment, 2016, 22, pp.185 - 200. ⟨10.1007/s10666-016-9531-5⟩

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Related works:
Working Paper: Land Sharing vs Land Sparing to Conserve Biodiversity: How Agricultural Markets Make the Difference (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-03948463

DOI: 10.1007/s10666-016-9531-5

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