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Intervention in Agricultural Systems that Provide Positive Environmental Externalities: an Evaluation of Alternative Instruments


  • Atance Muniz, Ignacio
  • Bardaji, Isabel
  • Tio, Carlos


The Common Agricultural Policy (CAP) intervenes in most agricultural systems that provide positive environmental externalities using both direct payments and agrienvironmental schemes. In this context, the objective of this paper is to compare the efficiency of the current intervention system versus intervening using agri-environmental payments as a sole instrument. The cereal steppes agroecosystem of Tierra de Campos (Valladolid, Spain) has been selected to develop this comparison. A farm survey and a Positive Mathematical Programming Model have been combined to provide results of both alternative instruments. The farm survey was used to ask the farmers their payments demands to participate in the alternative instrument, supplying also qualitative information about how it is perceived by farmers. The payments demanded were simulated in the model to get environmental and economic indicators for both instruments. Instruments were evaluated using a cost-effectiveness approach were total public expenditure was conserved constant for both. The main conclusion of this research is that policy intervention effectiveness could be potentially increased using an agri-environmental scheme as the unique intervention instrument. Considering this finding, results transferability to other agricultural systems and policy consequences in the context of the CAP are finally discussed.

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  • Atance Muniz, Ignacio & Bardaji, Isabel & Tio, Carlos, 2002. "Intervention in Agricultural Systems that Provide Positive Environmental Externalities: an Evaluation of Alternative Instruments," 2002 International Congress, August 28-31, 2002, Zaragoza, Spain 24810, European Association of Agricultural Economists.
  • Handle: RePEc:ags:eaae02:24810

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    References listed on IDEAS

    1. Katrin Oltmer & Peter Nijkamp & Raymond Florax & Floor Brouwer, 2000. "A Meta-Analysis of Environmental Impacts of Agri-Environmental Policies in the European Union," Tinbergen Institute Discussion Papers 00-083/3, Tinbergen Institute.
    2. Kline, Jeffrey & Wichelns, Dennis, 1996. "Measuring Public Preferences for the Environmental Amenities Provided by Farmland," European Review of Agricultural Economics, Foundation for the European Review of Agricultural Economics, vol. 23(4), pages 421-436.
    3. Nick Hanley & Hilary Kirkpatrick & Ian Simpson & David Oglethorpe, 1998. "Principles for the Provision of Public Goods from Agriculture: Modeling Moorland Conservation in Scotland," Land Economics, University of Wisconsin Press, vol. 74(1), pages 102-113.
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    Cited by:

    1. Hartell, Jason G., 2004. "Pricing Benefit Externalities of Soil Carbon Sequestration in Multifunctional Agriculture," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 36(02), August.


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