基于回购合同和风险偏好的供应链协同机制_英文_.pdf

J ou rna l of Sou theast U n iversity (Eng lish Ed ition ) 　V o l. 23, Sup , pp. 133 - 139 D ec. 2007　ISSN 1003—7985 Supply cha in coord ina tion w ith partic ipa tors r isk b ia s under buyback con tract Sun H ua　 H e J ianm in　 Zhuang Y am ing (Schoo l of Econom ics and M anagem en t, S ou theast U n ivers ity, N anj ing 2 11189, C h ina) Abstract:C onsidering p articip ators risk b ias, w h ich is m easu red by the m ethod of value at risk, the risk constrain ts in a tw oechelon supp ly chain coord ination under buy back con tract is equal to g iv ing the order of an upp er bound. W ith a risk averse dom inan t en terp rise (M ) and a risk neu tral non dom inan t one (R ) , the coord ination w h ich op tim izes the supp ly chain under the risk constrain ts is ach ieved by a p enalty m echan ism L to reduce R s order. W ith risk neu tral M and risk averse R , M can m otivate R to increase h is order by p rov id ing a risk subsidy K, and tw o cases are d iscussed. If the risk constrain ts of R cannot satisfy M s p articip ation constrain t to offer K, M w ill p refer to accep t R s order to ob tain a sub op tim ization so lu tion of the supp ly chain. O r else, w ith M s K, R s op tim al order just coord inates the supp ly chain, w h ich is equal to the case w ithou t risk b ias, and in th is situation R s risk b ias o