This paper analyses the potential impacts of a hypothetical implementation of the Income Stabilisation Tool (IST) in France for the field crops sector. The IST is a risk management tool available within the 2014–2020 Common Agricultural Policy (CAP) to support farmers facing a severe drop in their incomes. This analysis was conducted using a farm‐level model relying on expected utility theory and based on positive mathematical programming with risk. The model was applied to a sample of 1375 field crop farms in France derived from Farm Accountancy Data Network (FADN) data. Simulation results show that the uptake rate of the tool is relatively low, less than 37% in all scenarios. It is strongly dependent on CAP public support and on how much premium farmers have to pay. Highest uptake rates are observed in farms specialising in Other Field Crops, such as potatoes, pulses and sugar beet, and farms located in regions highly exposed to climatic risks. Previous experience with insurance favours the acceptance of the IST. Model results also show that the IST improves adopters' income and reduces income inequality. However, its impacts on crop diversity, measured by the Shannon index, are negative.

中文翻译：

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共同农业政策收入稳定工具对农民收入和作物多样性的潜在影响：法国案例研究

本文分析了法国假设实施收入稳定工具（IST）对大田作物行业的潜在影响。 IST 是 2014-2020 年共同农业政策 (CAP) 中提供的风险管理工具，旨在为面临收入严重下降的农民提供支持。该分析是使用农场级模型进行的，该模型依赖于预期效用理论并基于带有风险的正数学规划。该模型适用于根据农场会计数据网络 (FADN) 数据得出的法国 1375 个大田作物农场的样本。模拟结果显示，该工具的使用率较低，所有场景下的使用率均低于37%。它在很大程度上取决于 CAP 公众的支持以及农民必须支付多少保费。吸收率最高的是专门种植其他大田作物（如土豆、豆类和甜菜）的农场，以及位于高度暴露于气候风险地区的农场。以前的保险经验有利于接受 IST。模型结果还表明，IST 提高了采用者的收入并减少了收入不平等。然而，按照香农指数衡量，它对作物多样性的影响是负面的。