Tests for the efficiency of commodity arbitrage typically fail to find cointegration relationships between spot and futures prices and between markets. The reported study investigates the issue for spot and futures prices of cocoa on New York and London markets by means of the Johansen maximum...

The study uses the linear AIDS technique to analyse how consumers of cassava food products in the Lagos metropolitan area react to economic and demographic factors and how consumer reactions can be captured to bring about effective policy formulation for food security and poverty alleviation...