Agricultural (Dis)Incentives and Food Security: Is There a Link?
利用世界银行数据库，采用广义倾向得分匹配法分析1990-2010年间多国农业激励政策对粮食安全的影响，发现政策强度不同导致粮食安全表现差异。
Abstract Using the World Bank database “Distortions to agricultural incentives,” this paper analyzes the impact that agricultural (dis)incentives have on food security for a wide sample of countries over the 1990–2010 period. We adopt a continuous treatment approach applying generalized propensity score matching to reduce potential biases stemming from differences in observed country characteristics. The results provide strong evidence of self‐selection and heterogeneous food security impacts at different levels of policy intensity. Estimates of the dose‐response functions show that both discrimination against agriculture and large support for it lead to poor performance in the availability, access, and utilization dimensions of food security.