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1、外文翻译原文1MatchingModelsforPreference-sensitiveGroupPurchasingMatchingbuyersandsellersisoneofthemostfundamentalproblemsineconomicsandmarketdesign.Aninterestingvariantofthematchingproblemariseswhenself-interestedbuyerscometogetherinordertoinducesellerstoofferquantityorvolumediscounts,asiscom

2、moninbuyingconsortia,andmorerecentlyintheconsumergroupcouponingspace(e.g.,Groupon).Weconsiderageneralmodelofthisprobleminwhichagrouporbuyingconsortiumisfacedwithvolumediscountoffersfrommultiplevendors,butgroupmembershavedistinctpreferencesfordifferentvendorofferings.Unlikesomerecentformu

3、lationsofmatchinggamesthatinvolvequantitydiscounts,thecombinationofvaryingpreferencesanddiscountscanrenderthecoreofthematchinggameempty,inboththetransferableandnontransferableutilitysense.Thus,insteadofcoalitionalstability,weproposeseveralformsofNashstabilityundervariousepistemicandtrans

4、fer/paymentassumptions.Weinvestigatethecomputationofbuyer-welfaremaximizingmatchingsandshowtheexistenceoftransfers(subsidizedprices)ofaparticularlydesirableformthatsupportstablematchings.Wealsostudyanontransferableutilitymodel,showingthatstablematchingsexist;andwedevelopavariantoftheprob

5、leminwhichbuyersprovideasimplepreferenceorderingover“deals”ratherthanspecificvaluations—amodelthatisespeciallyattractiveintheconsumerspace—whichalsoadmitsstablematchings.Computationalexperimentsdemonstratetheefficacyandvalueofourapproach.CategoriesandSubjectDescriptors:I.2.11[Distributed

6、ArtificialIntelligence]:MultiagentSystems;J.4[ComputerApplications]:SocialandBehavioralSciences—EconomicsGeneralTerms:Algorithms,Economics,TheoryAdditionalKeyWordsandPhrases:stablematching,preferences,demandaggregation,grouppurchasing,volumediscounts,dailydeals,cooperativegames.1.INTRODU

7、CTIONMatchingbuyersandsellersisoneofthemostfundamentalproblemsineconomicsanddeal”providerslikeGrouponandLivingSocial(andservicesthataggregatesuchdeals)haspropelledgroupdiscountsintothepublicconsciousness.Groupbuyinganddemandaggregationhasbeenstudiedfromseveralperspectives