Research On Disruption Coordination Of Supply Chain Based On Fluctuation Conditions

With the rapid development of the society and economic, the global economiccompetition becomes more severity, and the company competition becomes thecompetition based on supply chains gradually. As a major means of elevatingcompetitiveness of the enterprise, the supply chain management gives an important playto it and becomes an effective management model to adapt to the global competition.Supply chain’s coordination operation has a great significance to improve the systemperformance and competitiveness of the supply chain. Thus, it is the important task forsupply chain to make itself to reduce management risk and operate coordinately. Inaddition, supply chain contract can balance the gains to every part by defining the rightsand the responsibilities of the participants in the supply chain, so it is an importantmechanism to realize coordination of the supply chain. However, due to the complex,dynamic and uncertain circumstances of the supply chain, and the intensive competitionbesides this, the disruptions that the supply chain confronts with become much morethan before, and this makes great influence to the supply chain’s operation andcoordination. Therefore, it is the question that the supply chain managers must face tohow to coordinate the supply chain to respond the disruptions effectively so as to reducethe influence the supply chain suffered by disruptions and try to get an optimum gain. Inthe meantime, this problem has drawn wide attention from scholars in domestic andoverseas.Based on definite demand and stochastic demand in the supply chain, and thepresupposition consideration of factors’ disruptions such as production cost, marketdemand et al. caused by unexpected events, this dissertation uses the theories of supplychain optimization management, coordination theory, contract theory, game theory andmicrocosmic economics and existed disruption management theory to establish andanalysize the supply chain disruption management models quantitatively andanalytically. In addition, the thesis explores the disruption’s influences to the supplychain systematically and puts forward relevant response policies. The main contents ofthis dissertation were as followed:1. Review of supply chain disruption management research. During this chapter,the review on supply chain coordination and contract theory, unexpected events and disruption management theory and the study of supply chain disruption management arecarried on. Then, a commentary about present situation of the researches at home andabroad in supply chain disruption management is given.2. Study on disruption management of the supply chains based on definite demandunder game and competition consideration. During this chapter, four kinds of supplychain disruption management models are established:（1）Focusing on a supply chainconsists of one supplier and one retailer based on Stackelberg game in which thesupplier being a leader, a coordinated model is set up based on demand and retailer’purchase cost disruption simultaneously under nonlinear demand function（;2）Focusingon a supply chain consists of one supplier and two competitive retailers based onBertrand game, a coordination model is set up based on demand, production cost andprice-sensitive coefficient disruption simultaneously;（3）Focusing on a supply chainconsists of one supplier and two competitive retailers based on Bertrand game, acoordination model is set up based on production cost, demand and productsubstitutability coefficient disruption simultaneously;（4）Focusing on a supply chainconsists of one supplier and multi competitive retailers based on Cournot game, acoordinated model is set up based on demand and product quantity order influencefactor disruption simultaneously.Firstly, a supply chain coordinated model is set up in steady environment; then, inthe centralized supply chain, a supply chain with multi factors’ disruptionsimultaneously is set up and an optimum countermeasure is summed up from theanalysis according to the deferent disruption degree of the combined disruptions ofmulti factors. Finally, a coordinated question under the decentralized supply chainsystem is researched, and the optimum coordination mechanismes that the suppliershould adopt are proposed.3. Study on disruption management of supply chains based on definite demandunder time constraints consideration. During this chapter, three kinds of supply chaindisruption management models are established by focusing on a typical kind ofshort-life cycle product i.e. fresh agricultural products:（1）Focusing on a supply chainconsists of one supplier and one retailer based on power demand function, a coordinatedmodel is set up based on market demand, retailer’s order cost and product transport timedisruption simultaneously;（2）Focusing on a two-level supply chain consists of onesupplier and multi retailers based on power function demand, a coordinated model is set up based on market demand, retailer’s order cost and product transport time disruptionsimultaneously;（3）Focusing on a two-level supply chain consists of one supplier andmulti retailers based on exponential demand function, a coordinated model is set upbased on market demand, price-sensitive coefficient and product transport timedisruption simultaneously.Firstly, a supply chain coordinated model is set up with the consideration ofproduct loss and freshness feature in steady environment; then, in the centralized supplychain, a supply chain with multi factors’ disruption simultaneously is set up and anoptimum countermeasure is summed up from the analysis according to the deferentdisruption degree of the combined disruptions of multi factors. Finally, a coordinatedquestion under the decentralized supply chain system is researched, and an optimumcoordination mechanism is proposed.4. Study on disruption management of supply chains based on stochastic demandunder flexible contracts consideration. During this chapter, three kinds of supply chaindisruption management models are established:（1） Focusing on a two-level supplychain, a coordinated model is set up based on stochastic demand distribution functionand production cost disruption simultaneously;（2）Focusing on a two-level supplychain, a coordinated model is set up based on stochastic perturbation factor distributionfunction;（3）Focusing on a three-level supply chain, a coordinated model is set upbased on stochastic demand distribution function disruption.Firstly, by drawing into some flexible contracts such as option contract or unitedcontract consists of buy back contract and revenue sharing contract, a supply chaincoordinated model is set up in steady environment; then, a supply chain disruptionmanagement model with factors disruption is set up and an optimum countermeasure isproposed. The influence that the supply chain suffered caused by unexpected events isanalyzed. Finally, a coordination strategy is proposed to respond factors disruptions byadjusting supply chain contract’ parameter.5. Study on disruption management of supply chains based on stochastic demandunder information construction consideration. During this chapter, three kinds of supplychain disruption management models with asymmetric information are established:（1）Focusing on a two-level supply chain with asymmetric information of the supplier’sproduction cost, a decision model is set up based on demand distribution function of themarket;（2） Focusing on a closed-loop two-level supply chain with asymmetric information of the retailer’s cost, a coordinated model is set up based on stochasticdemand distribution function and production cost disruption simultaneously;（3）Focusing on a two-level closed-loop supply chain with asymmetric information of themarket demand, a coordinated model is set up based on stochastic demand distributionfunction and production cost disruption simultaneously.Firstly, a supply chain decision model is set up under standard situation; then, asupply chain decision management model with the disruption of a single factor ordouble factors is set up and an optimum countermeasure is proposed. The influence thatthe supply chain suffered caused by unexpected events is analyzed. Finally, an optimaldecision strategy is proposed to respond factors disruptions by designing a new contractof the supply chain under standard situation.6. Study on disruption management of supply chains based on stochastic demandunder the cooperative model consideration. During this chapter, three kinds of supplychain disruption management models are established by focusing on a typical kind ofshort-life cycle product i.e. fresh agricultural products:（1）Focusing on a two-levelVMI cooperative model supply chain based on power demand function with arithmeticproduct form, a coordinated model is set up based on with stochastic demanddistribution function disruption;（2）Focusing on a two-level VMI cooperative modelsupply chain based on exponential demand function with arithmetic product form, acoordinated model is set up based on stochastic demand distribution function andproduction cost disruption simultaneously;（3）Focusing on a three-level cooperativemodel supply chain based on power demand function with arithmetic product form, acoordinated model is set up with perturbation factor distribution function disruption.Firstly, a supply chain coordinated model is set up with the consideration ofproduct loss and freshness feature in steady environment. Then, a supply chaindisruption management model with the disruption of a single factor or double factors isset up the influence that the supply chain suffered caused by unexpected events isanalyzed. Finally, a coordination strategy is proposed to respond factors disruption byadjusting supply chain contract’ parameter.