Cost of abating excess nitrogen on wheat plots in France: An assessment with multi‐technology modelling
利用多方程污染技术模型，估计法国小麦地块过量氮的边际减排成本中位数为每公斤21欧元；若将欧盟硝酸盐指令扩展至矿物氮，可减少9.5%的过量氮，但小麦收入下降3.1%。
Abstract We use a multi‐equation model of polluting technologies to evaluate excess nitrogen's marginal abatement cost (MAC). The MAC is estimated using the convex non‐parametric quantile regression. The empirical application is conducted at the plot level for wheat production in France in 2017. Results show a median shadow price for excess nitrogen of about €21 per kilogram. If the current European Union's Nitrates Directive (which sets a 170‐kg constraint on organic nitrogen per hectare) were extended to mineral nitrogen, this would allow a reduction of total excess nitrogen by 9.5%, but this would be accompanied by a 3.1% decrease in wheat revenue.