This paper identifies eight political economy factors that influenced governments' policy choices during the most recent global food price crisis. To explain the variety of responses and the policy failures, a framework is proposed that locates policies along the twin dimensions of unitary vs....

Biotic factors such as pests create biodiversity effects that increase production risks and decrease land productivity when agriculture becomes more specialized. We show in a Ricardian two-country trade setup that production specialization is incomplete under free trade because of the decrease...