In an era of globalization, private markets are expected to dominate the distribution of goods worldwide. Yet surprisingly little empirical work is conducted on them. The sensitive and secret nature of trading information, the complexity of real markets and the lack of official data other than that on price can all cause problems. This book seeks to overcome these in examining arguably the most difficult markets of all - agricultural markets under conditions of underdevelopment. Case-studies from nine countries covering all three underdeveloped continents offer a comprehensive overview of the lessons to be learnt from field experience.