In medio stat virtus: coexistence policies for GM and non-GM production in spatial equilibrium
开发了一个空间均衡模型，分析隔离距离和缓冲区等共存措施的经济影响，发现将成本全部分配给转基因生产者会导致市场偏向，而成本均摊则能恢复效率。
This article develops a spatial equilibrium model suitable to analyse the economic impacts of measures (such as isolation distances and buffer zones) meant to ensure coexistence between genetically modified (GM) and non-GM crops. We show that policies that put the cost of such measures exclusively on GM producers lead to a competitive equilibrium that is biased against GM products (relative to the welfare maximising allocation). Efficient allocation is restored if the cost of implementing coexistence measures is shared equally between adjacent GM and non-GM farms.