Farmers must balance between profitability and risks. This trade-off between profitability and risks also explains that the necessary investment for producing for the market takes place gradually and on a small-scale trial basis. These are important steps in increasing yields and profits and thus reducing associated risks. The example of cotton production areas, where yields for food staples are generally higher than average, shows that durable support services, combined with a marketing guarantee and stable prices can accelerate the process of agricultural intensification" (Cour, 1994).