AlexMarqusee–04/15/15–AirbnbandSanFrancisco:DescriptiveStatisticsandAcademicResearch
21
whobelievethatitachievessustainabilitygoals.Thereisverylittleindependentempiricalworkto
supportthis.
Afewempiricalstudieshavefoundthatpeopleengagein‘collaborativeconsumption’for
economicbenefits,personalsatisfaction,andbeca
usetheybelieveitcon
tributestoecological
sustainabilitybybetterutilizing idleresources.
21,22
DoestheSTRmarket“selfregulate”withrespecttothequalityofunitsandensuringfully
informedtransactions?
Theevidenceisunclearbutsuggeststhatonlinemarketplacesdonotfullyself‐regulate.Itispossible
thatthereputationsystempushesouttheworstunitseventually.However,Airbnbratingsprovidelittle
differentiationbetweenunitsandhavealmostnorelationshipwithratingsofidenticalunitsonother
websites.Onlineratingsystemsarepositivelybiasedbecauseeveryonewantsagoodreviewfrom
everyoneelse.Also,onestudypointstoracialdiscri
minationbyusersonAirbnb.
Manyproponentsofthesharingorcollaborativeeco nomy maintainthatuserreviewsensureahigh
qualityofproducts.Thisalongwithcontrolsbythehostingplatform‘selfregulates’themark
etand
lessenstheneedforgovernmenti
nterventioninthenameofconsumerprotection.
Onlinemarketplacesthatrelyonprofilesanddigitalreputationsmayfacilitateracial
discrimination.AstudyofAirbnbinNewYorkCityfoundthatnon‐blackhostscharge 12%more
forrentalscontrollingforallinformationvisibleonthewebsite.
23
Airbnb’sratingsystemfailstodifferentiatelistingsthroughtheirreputationbasedsystemsince
nearly95%ofratingsare4.5or5stars(Airbnb’sratingsystemhasamaximumof5stars).A
recentwebscrapeofAirbnbinSanFranciscoconfirmedthat91.6%oflistingshave4or5stars.
(2/15Scrape)Moreover,itisun
clearwhattheseratingsreallymean.Thereisonlyaveryweak
correlationbetweentheratingsofpropertieslistedonbothAirbnbandTripAdvisor.
24
Ingeneral,usersofreputationbasedmarketplacesseekoutreciprocalpositivereviews.Inthis
way,thesereputationsareprobablyupwardlybiased.
25,26
21
Tussyadiah,I.(2015).Anexploratoryondriversanddeterrentsofcollaborativeconsumptionintravel.In
Tussyadiah,I.&Inversini,A.(Eds.),Information&CommunicationTechnologiesinTourism2015.Switzerland:
SpringerInternationalPublishing.Retrievedfromhttp://www.tussyadiah.com/ENTER2015‐Tussyadiah.pdf
22
Hamari,JuhoandSjöklint,MimmiandUkkonen,Antti,TheSharingEconomy:WhyPeopleParticipatein
CollaborativeConsumption(2015).AvailableatSSRN:http://ssrn.com/abstract=2271971or
http://dx.doi.org/10.2139/ssrn.2271971
23
Edelman,BenjaminG.andLuca,Michael,DigitalDiscrimination:TheCaseofAirbnb.com(January10,2014).
HarvardBusinessSchoolNOMUnitWorkingPaperNo.14‐054.AvailableatSSRN:
http://ssrn.com/abstract=2377353orhttp://hbswk.hbs.edu/item/7429.html
24
Zervas,GeorgiosandProserpio,DavideandByers,John,AFirstLookatOnlineReputationonAirbnb,Where
EveryStayisAboveAverage(January28,2015).AvailableatSSRN:http://ssrn.com/abstract=2554500
25
Overgoor,J.,Wulczyn,E.&Potts,C.(2012).TrustPropagationwithMixed‐EffectsModels.InJ.G.Breslin,N.B.
Ellison,J.G.Shanahan&Z.Tufekci(eds.),ICWSM,:TheAAAIPress. Retrievedfrom
http://web.stanford.edu/~cgpotts/papers/OvergoorWulczynPotts.pdf
26Bolton,GaryE.andGreiner,BenandOckenfels,Axel,EngineeringTrust‐ReciprocityintheProductionof
ReputationInformation(March8,2009).UNSWAustralianSchoolofBusinessResearchPaperNo.2009ECON02.
AvailableatSSRN:http://ssrn.com/abstract=1355583orhttp://dx.doi.org/10.2139/ssrn.1355583
Exhibit B: Marqusee Memo
Hearing Date: April 23, 2015
CASE NO. 2014-001033PCA
Short-Term Rentals