Limiting the Nitrogen Losses by N-tax and Bioenergy Support: A Quantitative Analysis of Environmental Policy Mix Impacts in the North of France
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This paper is devoted to assessment of policy mix impacts regarding nitrogen pollutants.
The analysed policy combines a tax on the nitrogen input and incentives promoting perennial
crops assumed to be low input ones. We show that perennial crop subsidy increases significantly
the tax efficiency, compatible with the balanced budget of the Regulatory Agency in charge of
the environment. Based on a MILP agricultural supply model, quantitative analysis provides
assessment of impacts regarding land use, farmers income, and N losses at the North France
level.