第1页共13页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第1页共13页原文:Taxes,TradableRightsandTransactionCostsWithrespecttomarket-basedpolicyapproaches,itisawidelyheldviewthatcorrectivetaxationentailssubstantial.Thisconclusiononlyholdsifset-upcostsaresingledout.Itisarguedthattheprevalenceoftransactioncostsislargelydependentonthedesignofthepolicyinstrument,respectivelythetaxbaseorthetradingregimechosen.Comparativeanalysisfurthershowsthatacap-and-tradeprogramofemissionpermitsdistributedforfree,tradedonabrokeredmarketandmonitoredupstreamisnotonlymoreeffective,butalsolikelytoentailfewertransactioncoststhanenvironmentaltaxes.Anyattempt,inturn,tosavethehugeinformation,enforcementandcompliancecostsincurredbycorrectivetaxationimpairsitsefficacybyseveringthelinkbetweentheenvironmentalexternalityandthetaxbase.Basically,thereexistfourpolicyinstrumentstocurbpollution:directregulation,environmentalliability,ecologicaltaxesandtradableemissionrights.Thelattertwoaresimilarinthesensethattheyaremarket-basedinstrumentsthatusethepricesystemtointernalizeenvironmentaldamages.Theycomparefavorablytothetwoformerapproachesbecausetheyareflexibleandcost-effectiveasformallydemonstrated.Despitetheirsimilarity,mostcountriesrelyontaxesinsteadoftradablepermits.SincetheKyotoProtocol,however,thereisarenewedpoliticalandscientificinterestintradableemissionrights.Withthisriseinpublicinterest,theallegedcomplexityofthesystemandsubsequenttransactioncostsareunremittinglycriticized.Inthisarticle,wewillassessthemeritsofthiscriticism.Taxestypicallycarrybothanincentiveandfinancialeffect.AlthoughthepurposeofPigouviantaxationistobringaboutachangeinactivityandpollutionlevels,environmentaltaxescanbeeasilyconceivedasjustanalternativesourceofrevenueforthegovernment.Assumingalowtreasurypreference,publicsupportmayhavetobewonbyanenvironmentaltaxreformthatbalancesenvironmentaltax第2页共13页第1页共13页编号:时间:2021年x月x日书山有路勤为径,学海无涯苦作舟页码:第2页共13页revenueswithtaxcutselsewhereorprovidestaxincentivesforpollutionreduction.However,thisdoesnotsolvethesystemicinformationproblem.Whenenvironmentaltaxesaresettoolow,suboptimalemissionreductionswillresult.Alternatively,hightaxeswillcauseunwarranteddeadweightlosses.Moreover,ithasbeenrecognizedthatthemereexistenceofanexternalitydoesnotinitselfmeritcorrectivestateaction.Coase(1960)convincinglyarguedthat,undercertaincircumstances,thereductionofspill-overeffectscanbeachievedviaprivatenegotiations.Thisinsighthasledtothedevelopmentofanewpolicyinstrument.Transactioncosts:ThequestfortaxonomyTransactioncostsarenowadaysfrequentlyinvokedtoexplaininstitutional,non-marketphenomena.Manydifferentdefinitionsappearintheliterature,offeringvariousconceptualinsightsthathavenotbeentranslatedyetintostandardcostcategories.Therefore,wefirsttakeanotherlookatthedifferentdefinitionsofferedbyvariousauthorsfromwhichwewillderiveanoperationalandpossiblycompletetaxonomy.TheconceptoftransactioncostswasintroducedbyCoase(1937)toexplainwhyfirmsexistasanalternativefororganizingeconomicactivitybymeansofexchangetransactionsacrossthemarket.Theansweristhatfirmsarisebecausetherearesubstantialcostsinvolvedinusingthemarket.Manydifferentdefinitionsappearintheliterature,offeringvariousconceptualinsightsthathavenotbeentranslatedyetintostandardcostcategories.Coasewasnotveryexplicitaboutwhatheme...