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1、TheRANDCorporationCredenceGoodsandFraudulentExpertsAuthor(s):WinandEmonsReviewedwork(s):Source:TheRANDJournalofEconomics,Vol.28,No.1(Spring,1997),pp.107-119Publishedby:BlackwellPublishingonbehalfofTheRANDCorporationStableURL:http://www.jstor.org/stable/2555942.Accessed:
2、12/03/201204:26YouruseoftheJSTORarchiveindicatesyouracceptanceoftheTerms&ConditionsofUse,availableat.http://www.jstor.org/page/info/about/policies/terms.jspJSTORisanot-for-profitservicethathelpsscholars,researchers,andstudentsdiscover,use,andbuilduponawiderangeofcontent
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4、ccesstoTheRANDJournalofEconomics.http://www.jstor.orgRANDJournalofEconomicsVol.28,No.1,Spring1997pp.107-119CredencegoodsandfraudulentexpertsWinandEmons*Thisarticleisaboutamarketforcredencegoods.Withacredencegood,consumersareneversureabouttheextentofthegoodtheyactuallyne
5、ed.Therefore,sellersactasexpertsdeterminingthecustomers'requirements.Thisinformationasymmetrybe-tweenbuyersandsellersobviouslycreatesstrongincentivesforsellerstocheatonservices.Ianalyzewhetherthemarketmechanismmayinducenonfraudulentsellerbehavior.Fromtheobservationofmar
6、ketdatasuchasprices,marketshares,etc.,consumerscaninferthesellers'incentives.Ishowthatmarketequilibriaresultinginnonfraudulentbehaviordoindeedexist.1.Introduction*Thisarticleisaboutexpertservices.Expertservicesareprovidedbymedicaldoctorsandlawyersaswellasbylessglamorous
7、repairprofessionalslikeautome-chanicsandapplianceservicepersons.Alltheseprofessionshaveincommonthattyp-icallythesellernotonlyprovidestherepairservicesbutalsoactsastheexpertwhodetermineshowmuchtreatmentisnecessary,sincethecustomerisunfamiliarwiththeintricaciesandpeculiar
8、itiesofthegoodinquestion.Aggravatingthisspecialfeatureisthefactthatevenexpost,consumerscanhardlydeterminetheex
