Abstract
Amongst possible economic incentives to encourage reduced nitrate contamination of water, this paper emphasizes a nitrogen tax as a possible solution. This finding is based on models estimated from panel data for 100 intensive livestock farms. For each farm a threshold is established (nitrogen units which can be spread per hectare without damage) above which there is an excess of nitrogen. The 100 farms can consequently be classified into two subsamples. The demand for nitrogen is derived for each sub-sample using the dual approach. Both categories are pooled together and a tobit model is estimated. This is used to derive total nitogen demand if all farms were under the threshold. A mineral nitrogen tax would lead to a reduced nitrate concentration in water supplies, because of a more efficient use of organic nitrogen together with a reduction in the use of mineral nitrogen in crop production.
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Vermersch, D., Bonnieux, F. & Rainelli, P. Abatement of agricultural pollution and economic incentives: The case of intensive livestock farming in France. Environmental and Resource Economics 3, 285–296 (1993). https://doi.org/10.1007/BF00313163
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DOI: https://doi.org/10.1007/BF00313163