This article introduces the concept of the variability of association rules of products through the estimate of a new indicator called overall variability of association rules (OCVR). The proposed indicator applied to super market chain products, tries to highlight product market baskets, with great variability in consumer behavior. Parameter of the variability of association rules in connection with changes in the purchasing habit during the course of time, can contribute further to the efficient market basket analysis and appropriate marketing strategies to promote sales. These strategies may include changing the location of the products on the shelf, the redefinition of the discount or even policy or even the successful of recommendation systems.