This paper analyzes the impact of agricultural (dis)incentives on food security for a wide sample of countries over the period 1990-2010 using the World Bank database on distortions to agricultural incentives. We adopt a continuous treatment approach applying a generalized propensity score matching to reduce potential biases stemming from dierence in observed country characteristics. The results provide strong evidence of self-selection and heterogeneous food security impacts at dierent levels of policy intensity. Estimates of the dose-response functions show that both discrimination against agriculture and large support lead to poor performances in several dimensions of FS.
Magrini, E., Montalbano, P., Nenci, S., Salvatici, L. (2015). Agricultural (dis)Incentives and Food Security: Is there a Link?”.