A study of the market system and the proximity of food vendors, the aim of which is to install food vendors to ensure food security (availability, accessibility, quality and cost of foodstuffs in local markets). The objective is to identify the proximity of food vendors to ensure the food distribution system for the urban populations of Bamako. Thus, we address an estimation method adapted to these spatial specifications. Our exhaustive sampling includes 201 sales outlets in the “Bankoni and Sablibougou” neighborhood of the Bamako district. Special modeling allows vendors to make projections on food access. The results of the analysis show that the distance is more important in relation to the position of the vendor installed in the neighborhood, whatever the price charged to the customer (γ < 0.05). Moreover, when the probability is lower, the sellers are so far from the customers, they go out of the limits of the radius of 1000 put. The sensitivity of the market to a change in price, customers are somehow not loyal, regardless of the value of elasticity is greater, and therefore profits are smaller. Conclusion: In a symmetric equilibrium with a finite market boundary, profits are greater when prices are high, and therefore when the elasticity of demand is low. The lower the density of marginal consumers, the lower the elasticity.