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时间:2019-11-22
《多商品流供应链网络应对随机需求扰动研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第23卷第6期运筹与管理Vol.23,No.62014年12月OPERATIONSRESEARCHANDMANAGEMENTSCIENCEDec.2014多商品流供应链网络应对随机需求扰动研究徐兵,蒋昆(南昌大学管理科学与工程系,江西南昌330031)摘要:研究随机需求下多生产商与多零售商组成、生产和销售多种产品的供应链网络如何应对需求扰动问题。利用Nash均衡理论与变分不等式方法,给出了突发事件发生前随机需求多商品流供应链网络供给市场、零售市场和需求市场的均衡条件和经济解释,建立了刻画各层均衡和供应链网络整体均衡的变分不等式模型。当突发事件导致需求
2、扰动,供需矛盾将引起需求市场价格波动和供应链运作风险的激增。分析生产商允许零售商二次订货和退货下供应链网络均衡的变化,建立了基于二次订货与退货合同可应对需求扰动的随机需求多商品供应链网络均衡变分不等式模型。数值算例验证了模型的合理性,表明二次订货与退货合同可有效应对需求扰动。关键词:供应链网络;随机需求;变分不等式;需求扰动;二次订货与退货合同中图分类号:F270;F224.1;C931.1文章标识码:A文章编号:1007-3221(2014)06-0144-08StudyontheMulti-commoditySupplyChainNetworkC
3、opingwithRandomDemandDisruptionXUBing,JIANGKun(DepartmentofManagementScienceandEngineering,NanchangUniversity,Nanchang330031,China)Abstract:Thispaperstudieshowasupplychainnetworkconsistingofmanymanufacturersandmanyretailers,whomanufactureandsellmanykindsofproducts,copeswiththed
4、emanddisruption.Theequilibriumconditionsofsupplymarket,retailmarketanddemandmarketinmulti-commoditysupplychainnetworkwithrandomdemandbeforethehappenofunexpectedeventareputforwardrespectivelytogetherwiththeireconomicexplainsbyusingNashequilibriumtheoryandvariationalinequalitymet
5、hod.Variationalinequalitymodelsaresetuptocharacterizetheequilibriumstatesofeachlayerandwholesupplychainnetwork.Whenthemarketdemandisdisruptedbyanunexpectedevents,thecontractionbetweensupplyanddemandwillresultinthefluctuationofpriceatdemandmarketandtheincreasingriskinsupplychain
6、operation.Thechangeofsupplychainnetworkequilibriumisanalyzedwhenthemanufacturersallowtheretailerstoreplenishinventoryandtoreturntherem-nantgoods.Thevariationalinequalityequilibriummodelofmulti-commoditysupplychainnetworkwithrandomdemandissetuptocopewithdemanddisruptionbasedonth
7、esecondorderandreturncontracts.Numericalexamplesprovethereasonabilityofmodels,whichshowthatthesecondorderandreturncontractscaneffectivelycopewithdemanddisruption.Keywords:supplychainnetwork;randomdemand;variationalinequality;demanddisruption;secondorderandreturncontracts0引言供应链网
8、络中同层企业间的竞争与上下游企业间的合作并存,均衡状态的刻画有助于管理者制定正确的决策。基于变分不等式方法,
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