Study on Location Model of Multi-Node Distribution Centers in Closed-Loop Supply Chain

This study establishes the logistics distribution center location allocation model in closed-loop supply chain system. In addition, according to the specific feature of closed-loop supply chain system the study modifies alternative expenses and time-restricting conditions of logistics distribution center location model. It is necessary to consider all the factors during the course of establishing the logistics distribution center location model. Also, it is important to consider the effectiveness of distribution center in model and ask for the experts' opinion and advice. A location is allocated by combining DEA model and mixed integer programming is presented. In this model, in terms of the results of the evaluation of the efficiency of the distribution center by the DEA model; this result is regarded as a constraint of the model. Finally, an example demonstrates that the model can solve the problem of distribution centers location allocation and provide an effective decision tool for decision-maker.