Computable general equilibrium models are used to study the short-run impact of fluctuating primary commodity prices on the economies of Colombia, Ivory Coast and Kenya. The results indicate that these economies are destabilized by primary commodity price fluctuations unless governments act to...

The role of the futures markets in stabilising spot prices has been widely discussed. However, the success of these markets in performing the stabilising function critically depends on whether they are efficient (Fama 181, page 383) in the sense that the futures prices fully reflect the...