文档介绍：,whoneededinsuranceorfinancing,andinvestors,whowerewillingtotakerisksorlend,,platforillfirmshavedevelopedotherbusinessformstoserveinmanyeconomicallysignificantindustries,rangefrommediatopaymentsystems。,theeconomicanalysisonplatformbusinessonlystartedatthebeginningofthetwenty-firstcentury,,workexternalities,theill':thesearchingwebsite,asatypicaltwo—sidedplatform,connectsboththepeoplewhousethesearchingengineandtheadvertiserswhoplaceadsonthesite;,whichcoordinatestheneedsofbothgroups,likeinthiscase,,butifunderthediscussionofantitrust1aw,,,wehavetooptimizethetraditionalantitrustanalyzingmethodssotheyCanbeappropriatelyusedontwo-,marketshare,dominantmarketposition,predatorypricingaswellasexclusivecontractandtying,etc..:Two—sidedMarket,PlatformEnterprises,Relev