Cocoyam is highly perishable and considerable economic losses occur after it is harvested. This is as a result of rot, sprouting and other physiological changes. These losses could be reduced through efficient storage, processing and marketing. This perspective hinges on the economic study of cocoyam marketing in south-east Nigeria. It specifically ranked market participants preference for cocoyam cultivars and the reasons for such preferences. It showed the main marketing channels and socio-economic and institutional factors affecting the choice of marketing channels. It showed the structure and conduct of cocoyam marketing and socio-economic and institutional factors affecting the volume of cocoyam marketed. It estimated the costs and benefits of cocoyam marketing as well as the net income of six storage methods. It assessed the effectiveness of six storage methods