The approach taken in this report reflects the view of the collaborating international organizations that price volatility and its effects on food security is a complex issue with many dimensions, agricultural and non-agricultural, short and long-term, with highly differentiated impacts on...

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...