Researches On Supply Chain Coordination Strategy Responding To Disruptions

The studied title is come from National Natural Science Foundation Project (grant number: 70471045):supply chain coordination and quantity discount research based on stochastic demand and asymmetric information.As an important aspect of supply chain management, the investigation of supply chain coordination is meaningful regarding to lowering the total cost of the whole chain. While, most of the researchers established their study on an ideal hypothesis, i.e. the supply chain can achieve perfect coordination successfully. However, some unpredictable events do occur such as natural disaster, war and so on. As a result, disruptions in the supply chain happen and it cannot accomplish perfect coordination successfully. Taking this into account, researches on supply chain coordination strategy responding to disruptions will be practical and meaningful.Up to now, many scholars incorporate the ideas derived from disruption management into supply chain and built mathematics model responding to disruptions. Nevertheless, their researches have some limits and shortcomings. For instance, they did not consider the cases in which many variables change due to disruption management under stochastic demand. No one consider the situation where the market demand is affected by retailer promotional effort. Consequently, on the basis of existing study conducted by researchers, we extend their research in the following aspects:1. We established the mathematic model under elastic demand studied the retailer's strategy facing both market demand scale and price sensitive efficient disruption. We derived the optimal order as well as pricing policy when unpredictable events happened in the supply chain. Through theoretical analysis, we figure out the relationship between the retailer's strategy and two disruptions.2. We present the model for the two-stage supply chain in which production cost of the supplier disruptions and the market demand of products bears some close relationship with the retailer's promotional efforts. Firstly, by adopting flexible quantity contract, we achieved supply chain coordination under regular circumstance (without disruptions in the supply chain).Then, we considered the supply chain model with disruptions. Finally, we extended the model and studied the supply chain coordination where the retailer's promotional efforts had great impact on the product market demand. We gave strategies of how to adjust parameter in quantity discount contract and offered the decision-maker a reasonable decision theoretically. 3. We investigate the three-echelon supply chain with stochastic demand facing both production cost and market demand of products change. On one hand, we built up mathematics model for regular three -echelon supply chain with revenue sharing contract and got the contract parameters that would coordinate the chain. Following that, we studied the problem of how to respond the disruptions in the above supply chain. By conducting the theoretical analysis, we derived the optimal order quantity and the adjustment of parameter in the revenue sharing contract. Finally, we illustrated our results with the numerical examples.To sum up, our investigation not only enriches the disruption management and its application in supply chain coordination research. Simultaneously, but also offers the decision-makers of the supply chain a powerful support on how to coordination the chain with the disruptions.