3 of the capital cities growing at rates in excess of 5 percent per year. The build-up of urban population and rising levels of consumer income place great pressures on the marketing system to expand and undertake an increasingly complex set of activities which link the rural and urban sectors of the economy (2). Marketing services become a larger portion of the consumer food bill and the composition of the market basket shifts from low cost, starchy foods towards higher cost livestock products, fruits and vegetables. Major investments are required for transportation equipment, highways and other physical facilities. Governmental agencies usually assume leadership in planning and financing much of the market infrastructure and frequently perform major roles in facilitating and regulating the development of marketing institutions and in some instances actually organizing and managing marketing enterprises. There are a wide range of viewpoints on the role of agricultural marketing institutions in economic development and the appropriate function of the public sector in bringing about desired changes. There are those who hold the view that marketing is an adaptive set of activities to be given secondary consideration in development planning strategies with primary consideration being directed toward the expansion of agricultural and industrial produc- tion. This view has been challenged by marketing economists who argue that marketing is a critical and dynamic component of development. Abbott and others in the FAO marketing group have stressed the incentive role of effective product marketing systems which can reduce risks and lower costs for farmers and other market participants (3, 4). The local availability of reasonably priced agricultural inputs and consumer goods are also seen as having a stimulating impact on economic activity in both rural and urban areas.