MARKETING IN DEVELOPING COUNTRIES by Harold Riley and Michael Weber ABSTRACT The U.S. Agricultural Economics profession has become significantly in- volved in foreign assistance programs directed towards the problems of less developed countries. In order to be effective in their roles as teachers, re- searchers and advisors, it has been necessary to adapt conceptual and analytical tools for use in different political, institutional and social environments. This chapter provides a conceptual perspective of agricultural marketing as an important dynamic element in the development process. A review of the past research indicates that there have been useful descriptive studies of market- ing activities in several less developed countries, but diagnostic and pre- scriptive conclusions have often been constrained by the relatively static, perfectly competitive marketing model of economics. Suggestions are made for organizing and conducting future research within a more dynamic "food system" framework with appropriate consideration of other social science approaches to marketing problems. A research agenda is suggested through a set of interrelated questions that address the basic information needs for diagnosing marketing problems and assessing program needs to achieve desired development goals.