Evaluation And Control Of The Key Elements Of The Closed-loop Supply Chain Under E-commerce Environment

The poor operational performance of closed-loop supply chain is its poignant problem, including synergy among economic performance, environmental performance and social performance. The fundamental cause is that we cannot totally command and control some key factors when building closed-loop supply chain, like its site selection, system structure, operational mode, inventory optimization and control, coordination mechanism. The e-direct sales channel is potentially changing relationship between manufacturers and retailers, at the advantage of its wide coverage, low operating cost. So this paper analysis these key factors and system index on the background of the dual channel, based on these, it makes research on the inventory control and coordination mechanism, then the system structure, inventory optimization, coordination mechanism and other management issues of the closed-loop supply chain are discussed under e-commerce environment, through the main quantitative analysis, and the analysis method of the combination of qualitative and quantitative.â‘ By judging importance degree of key factors, we find that coordination mechanism, inventory control and pricing strategy are not more important, but also key factors. Operational mode and recycling strategy are not less important, but also the base of closed-loop supply chain, and have an influence on operational performance and making strategy.â‘¡By the analysis of inventory influencing factors, we establish the closed-loop supply chain inventory optimization model under e-commerce environment which is uncertainty demands of"dual source"stock and the sale of"dual channel", and make a comparison and numerical simulation for the impact on the stocks of the"push"and"pull", the two different modes of production model. Then we can come to the conclusions:1)"Pull"mode of production is superior to"push"mode of production, because the system profit per unit time of the model 2 was significantly higher than that of model 1.2)Increasing amount of recycle that can not only help reduce the production of new products, saving the production cost, reduce the pollution to the environment. But also increase the system profit in a unit time for enterprise, create more gains. Meanwhile, with increasing amount of recycle, the single best processing batch in a lead time is also a trend of increase, but the time interval for every two processing is the trend of decrease.3) If keeping the other parameters constant, the lead time of two modes will decrease with the increasing of electric demand and amount of recycle, but also the profit in a time unit will increase. And the amount of recycle has more influence on the profit than the amount of e-direct sales in a time unit. The e-direct sales channel can arouse the potential demand, rather than at the expense of giving up the traditional market. So, the enterprise shall build e-direct sales channel appropriately to increase profit, according to customers'favorite.4) If keeping the other parameters constant, the more increasing amount of recycle, the more amount of finish, and also the times of remanufacture in a lead time is increasing. That is to say, the less the lead time, the more the order amount.5) If keeping the other parameters constant, the system profit will decrease sharply with increase of the stock-out cost. So we can take measures (like increasing quantity of safety stock, strengthening prediction) to help protect against the loss.6) If the market demand of traditional retail channel shows ascendant trend, so in order to minimize the name of stock losses, retailer's supreme storage and production of new product will increase, thus system profit also shows ascendant trend.â‘¢Through the study on quantity discount mode of closed-loop supply chain under e-commerce environment, we find that: 1) Under the centralized decision-making, the system profit will be the best, and the market demand will be the double of it under the decentralized decision-making. The total profit of different modes is the same among the cooperative companies in closed-loop supply chain, but profit distribution among them is different. 2) The coordination mechanism is constructed so ensure the whole profit is up to the one of the decentralized decision-making, the profit which the supply chain enterprises gets with coordination is more than the one with no coordination. Finally, the retail price decreases and the sales volume increases. And there is a variety of the quantity discounts. 3) The proper quantity discount can distribute profit in different ratio among cooperative companies in closed-loop supply chain.