This paper consists in analysing the dynamics of the exchanges between the distributors and the producers basing the ECR new paradigm. More precisely, different methods of continuous replenishments of shops and distributors warehouses has been compared. Generic models which represent these three logistic organisation diagrams have been implemented. The modelling phase based on Forrester's system dynamics paradigm, used an empirical approach of the relationships between industry and commerce and was based on the papers talking about ECR. Finally, we summarise the major simulation of the three models results in objective to try to improve the understanding of the common politics of the distributors and producers, which rapidly permits to react upon the supply chain.