This chapter focuses on how changes in the rules regarding who could compete in rice milling in the ON combined with technological change in rice production and new macro-economic policies (particularly the CFA franc devaluation) to lead to a transformation of rice production and marketing in the ON. The chapter also pays particular attention to the synergies between technological changes in rice production, the introduction of new marketing and macroeconomic policies, and the evolution of institutions governing rice production in the ON on the transformation of agriculture in this region of Mali.