ContentslistsavailableatScienceDirect
Energy
Economics
j o ur na l h o me p a g e :w w w . e l s e v i e r . c o m / l o c a t e / e n e e c o
How
global
climate
policy
could
affect
competitiveness
夽
Hauke
Ward
a,b,c,∗,
Jan
Christoph
Steckel
b,c,
Michael
Jakob
b aInstituteofEnvironmentalSciences(CML),DepartmentofIndustrialEcology,LeidenUniversity,theNetherlands bMercatorResearchInstituteonGlobalCommonsandClimateChange,TorgauerStraße12–15,10829,Berlin,Germany cPotsdamInstituteforClimateImpactResearch,LeibnizAssociation,Postfach601203,14412,Potsdam,Germanya
r
t
i
c
l
e
i
n
f
o
Articlehistory:
Received18January2019
Receivedinrevisedform4October2019 Accepted14October2019
Availableonline2November2019 JELclassification: C67 F16 F18 L50 L60 Q56 Keywords: Globalcarbonprice Input-outputanalysis Energy-intensive Trade-exposedindustries Competitiveness Labormarket Globalsupplychains
a
b
s
t
r
a
c
t
Aglobaluniformcarbonpricewouldbeeconomicallyefficientandatthesametimeavoid ‘carbon-leakage’.Still,itwillaffectthecompetitivenessofspecificindustries,economicactivityandemployment acrosscountries.Thispaperassessesshort-termeconomicshocksfollowingtheintroductionofaglobal carbonpricethatwouldbeinlinewiththeParisAgreement.BasedontheWorldInput-OutputDatabase (WIOD),wetracethecarboncontentoffinaloutputthroughglobalsupplychains.Thisallowsusto estimatehowpricesofthefinaloutputwouldreacttotheintroductionofaglobalcarbonprice.We findthatimpactsonindustrialcompetitivenessarehighlyheterogeneousacrossregionsandeconomic sectors.ThecompetitivepositionofBrazil,Japan,theUSAandadvancedeconomiesoftheEUislikely toimprove,whereasindustriesandlabormarketsinnewlyindustrializingAsianeconomiesaswellas EasternEuropearelikelytoexperiencesubstantialadverseimpacts.
©2019TheAuthors.PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBY-NC-SA license(http://creativecommons.org/licenses/by-nc-sa/3.0/).
1. Introduction
AchievingtheclimatetargetsoftheParisAgreement(UNFCCC, 2015)requires substantial reductions in global greenhousegas (GHG) emissions.Under thecurrent global climategovernance
architecture, members of the Paris Agreement pledged
volun-taryunilateralclimatetargetsandmitigationpoliciesasspecified in theirNationally Determined Contributions(NDCs). However, the implementationof ambitious unilateral climatepolicies by first moversoften facesresistance due to concerns about ‘car-bon leakage’, i.e. the fear that energy-intensive, trade-exposed (EITE)industriescouldrelocatetocountrieswithlaxerclimate poli-ciesorlessefficientproductiontechnologies.Countriesadopting ambitiousclimatepoliciesmightthenruntheriskofincurring sub-stantialcoststoreducetheiremissionswhileatleastsomeofthe emissionreductionsachievedaresimplytransferredelsewhere.
夽 PublicationofthissupplementwassupportedbyETHZürich,theUniversityof MünsterandEconomicsforEnergy.
∗ Correspondingauthorat:InstituteofEnvironmentalSciences(CML), Depart-mentofIndustrialEcology,LeidenUniversity,P.O.Box95182300RA,Leiden,the Netherlands.
E-mailaddress:h.ward@cml.leidenuniv.nl(H.Ward).
Economistshavefora longtime advocateda uniformglobal priceonGHGemissions(Cramtonetal.,2017;Edenhoferetal., 2015;High-LevelCommissiononCarbonPrices.,2017;Weitzman, 2014).Thiswouldbe themostcost-efficientpolicyinstrument, guaranteeingthatabatementtakesplaceforactivitiesforwhich emissionscanbereducedintheleast-costmanner.Moreover,a globalcarbon pricewould preventcarbonleakage, asno coun-trywouldbenefitfromanartificialcomparativeadvantagearising fromthelackofclimatepolicy.Yet,itposesahighercostburden onmorecarbon-intensiveproducers(FullertonandMuehlegger, 2019).Hence,auniformglobalcarbonpricecouldhaveimportant consequencesforindustrialcompetitiveness,nationalgrossvalue addedandemployment.Whiletheacademicliteraturehas exten-sivelyexaminedtheeffectofunilateralclimatemeasuresoncarbon leakageandcompetitiveness1,thereis,toourknowledge,onlyvery
limitedunderstandingoftheimplicationsofglobalclimatepolicy.
1SeeBöhringeretal.,2012;BrangerandQuirion,2014;CarboneandRivers,2017; DechezleprêtreandSato,2017;Jakobetal.,2014;Forinetal.,2018;KimandKim, 2012;Sayginetal.,2011;Voigtetal.,2014.
https://doi.org/10.1016/j.eneco.2019.104549
Thispaperaimstofillthisgapbyprovidinginsightsintothe short-termcompetitivenessimpactsinducedbya globalcarbon price.OuranalysisisbasedontheWorldInput-OutputDatabase (WIOD) (Timmer et al., 2015), a multi-regional Input-Output (MRIO)database.Weusethisdatatoderivethe‘NormalizedNet CarbonContent’(NNCC)ofallglobalsupplychains,i.e.the emis-sionsgeneratedperUSDofoutputfromagivensectorinagiven countryovertheentiresupplychain.Thisinformationcanbeused todeterminethepriceincreasethat wouldresultfromaglobal carbonpriceineachsectorandcountry.Thusitcanhelpto iden-tifysectorsandcountriesfacingthemostsevererisksofadverse impactsoncompetitiveness,valueaddedandemployment.
Vulnerableindustriesarethosethatdisplaybothasignificant relative price increase and a highcontribution to the national valueaddedwithinthecorrespondingeconomy.Thesesectorscan beexpectedtolosemarketshare,profitabilityandemployment. Our resultsindicate that a uniformglobal carbon price would, atleastintheshortterm,improvethecompetitivenessof coun-trieswithlow-carbonenergysystems(e.g.BrazilorFrance) and efficientproductiontechnologies(particularlyindustrialized coun-tries). By contrast, developing or transitioning economies with carbon-intensiveenergysystems, suchasChina,India and Rus-sia,canbeexpectedtoexperiencesubstantialpriceincreasesin someenergy-intensiveindustries.Overall,agloballyuniform car-bonpricingpolicywouldprobablymakeWesternindustriesmore competitive,althoughnegativeinitialimpactscanbeexpectedfor EasternEuropeanand fast-growingAsian countries2 .Themost
severe impacts would probably affect low-skilled workers and henceprobablythepoorestsegmentsofsocieties.
Thispaperproceedsasfollows.Section2introducesthedataand methodology.Section3presentstheresults.Section4discusses policyimplicationsandconcludes.
2. Dataandmethods
Ouranalysesarebuiltonaninnovativewaytoestimatethe Nor-malizedNetCarbonContent(NNCC)ofglobalsupplychains.We buildouranalysesonmulti-regionalinputoutputmodelingbased ontheWorldInputOutputDatabase(WIOD).Inthissectionwe willfirstdescribethedataweuse.Afterwards,wewilldescribe howwecalculatetheNNCC.BasedontheNNCC,weestimatethe implicationsofimplementingaglobalcarbonpriceoncountries’ economicperformanceandlabormarket.Finally,wewillcritically discussthemethodologicalapproachtakeninthispaper.The fol-lowingsub-sectionsdescribetheunderlyingdata,themethodology toestimatethecarboncontentoftradeandhowitcanbeusedto assessthecompetitivenessimpactsofaglobalcarbonprice.We thendiscussthelimitationsofourapproach.
2.1. Data
We use the World Input-Output Database (WIOD) (Timmer
etal.,2015)andthecorresponding‘satellitedata’onenergy-related CO2emissionsforeachsectorineachregion3.Thedatasetreflects
41 regions and 35 sectors. WIODincludes the EU27 (which is
thecurrent EuropeanUnionwithout Croatia), aswellas major economies(includingAustralia,Canada,Japan,Mexico,SouthKorea andUnited States),and newlyindustrialized economies (Brazil, China,Indonesia,India,Russia,TaiwanandTurkey).Theseregions accountforapproximately85%ofworldGDP(Timmeretal.,2015). Theremainderisincludedinaresidualregion,referredtoasthe
2 Foraspatialdistribution,seeFig.A3intheSupplementaryinformation 3 Wedonotconsideremissionsfromlanduseandlandusechange.
‘RestoftheWorld’(ROW).4 Weusetheyear2009,asit
consti-tutesthemostrecentreleasethatincludesemissionsdata.Thishigh regionalandsectoralresolutionenablesadetailedunderstanding ofthecarboncontentofglobalsupplychains.
2.2. Estimatingthenormalizednetcarboncontent
Weapplyamodifiedsupply-sidefootprintanalysistoidentify thecarboncontentofglobalsupplychains.IntheMRIOdata, out-putfromacertainsectorinoneregionemployedasaninputfor production in a differentsector and/orcountryis described by theinter-industryflowmatrixZ ∈R(m∗n)×(m∗n),withmbeingthe numberofsectorsandnbeingthenumberofregions.Final con-sumption,bysectorandcountry,ofallcountriesisdenotedbythe finaldemandmatrix Y ∈R(m∗n)×n.TheelementsofZ aregiven byZr,sr,s,whichdenotesallmonetaryflowsfromregionr,sectors toregionr’,sectors’Correspondingly,YconsistsofelementsYr
r,s, whichrepresenttheaggregatedmonetaryflowfromregionr,sector sintothefinaldemandofregionr.
Inordertoassessthecarboncontentoffinalconsumption,we needtoderivetheLeontiefinverseL,whichspecifiestheinputs usedtogenerateaunitoffinaloutputovertheentiresupplychain (MillerandBlair,2009).Forthisreason,wedividetheelementsof Zbythecorrespondingtotalsectoraloutput Or,s=
r
s Zrs rs + r Yrr,s.Thetechnologymatrixthatreflectsallnecessarydirect inputstoproduceoneunitofoutputineachsectorisdenotedby A.TheLeontiefinverseisthencalculatedasL= (I−A)−1,whereI denotestheunitymatrix.Torelatemonetaryinputsfromdifferent sectorstoCO2emissions,weusedataonemissionFrs bysectors inregionr,whichwedividebysectoraloutputsOtoarriveatCO2 emissionsperUSD.
The total CO2 emissions ˆfrs associated withone unit of sec-tor s in region r for final consumption can then be expressed as ˆfs r =
r s fs rL r,sr,s.Wecalltheemissionsassociatedwiththe entireglobalsupplychainofaunitoffinaloutputthe‘Normalized NetCarbonContent’(NNCC).NNCCallowsthecomparisonof asso-ciatedcarbonperunitofoutput,andrelatedpriceincreaseswithin sectorsandacrosscountries.Thisapproachyieldsasubstantially higherresolution thanaconventional carbonfootprint analysis, wheretwo vectorsaremultiplied(i.e.,(f·L)·Y),hence omitting importantsectoral,aswellasregional,details.
2.3. Assessingimpactsoncompetitivenessandemployment
Ouranalysisassumesthatagloballyuniformcarbonpriceis implementedand thattheassociated priceincreasesfor manu-facturedgoods are fullypassed through toconsumers (Kenkel, 2005), regardlessofwhetherthecarbon priceis appliedatthe pointofextraction,production orconsumption(Karstensen and Peters,2018).Thisisinlinewiththeobservationthatintheshort term,priceincreasesresultingfromfueltaxesaremainlyborneby consumers(ChouinardandPerloff,2004;MarionandMuehlegger, 2011).Weassumeperfectsubstitutabilityofeconomicoutputfrom agivensectoracrosscountries,i.e.thatallfinaloutputofagiven sectorisproducedfortheglobalmarket.Theshort-termimpacton industrialcompetitivenessisthendeterminedbythepriceincrease andtheassociated demand-sidereactionwithineach economic
sector5.Ouranalysisconsidersthatchangesinthedemandoffinal
goodswillhaverepercussionsforallsectorsformingpartoftheir globalsupplychain.Ifaglobalcarbonpricepisimplementedand passedontotheconsumer,finalgoodsfromsectorsinregionr willseeapriceincreaseofpr
s=p· ˆf s
rperUSD.Forouranalysis, weassumeaglobalcarbonpriceofUSD50pertCO2,whichwould beroughlyinlinewiththe2◦Ctarget(High-LevelCommissionon CarbonPrices.,2017).
Weassumethatallfinaloutputisexportedtotheglobalmarket, fromwhichitmaybeconsumedeitherintheregionwhereitwas produced,asdomesticconsumption,orinadifferentregion.We employapriceelasticityofexportvaluesofı=−2.84fromSolleder (2013)6toassesschangesinfinaloutputresultingfromtheseprice
changesbysectorandcountry.Weusethisparametertoproject changesinfinaloutputasafunctionofpricechangesrelativeto theglobalaverage.Thatis,weassumethatsectorsinregionsthat aresubjecttoapriceincreasethatishigher(lower)thantheglobal average,experiencealoss(gain)inmarketshare.Usingtheabove elasticitytomodifyeachentryofthefinalconsumptionmatrixY givesusthematrixY∗.Theelementsofthismatrixarecalculatedas y∗rr,s=yr
r,s· (1+prs− ¯ps)ı,with ¯psbeingtheglobalmeanprice changeforsectors.Y∗canthenbeusedtocalculateallsectoral outputswithaglobalcarbonprice,O∗=LY∗.
ThematrixZcanalsobeusedtodeterminepaymentsfor pro-ductionfactors,suchaswagesandreturnstostakeholders,asthe differencebetweenoutputsfromonesectorandthissector’sinputs fromothereconomicsectors.Theinputsofsectorsofcountryr arecalculatedasIr,s=
r
s
Zrr,s,s.Hencethecorrespondingvalue
added(VAD)canbecalculatedasVADr,s=Or,s−Ir,s.TheVADper unitofoutputisthengivenby
v
adr,s=VADr,s/Or,s.MultiplyingthenewlyderivedelementsofO∗withthe corre-spondingelements
v
adallowsustoprojectchangesinregionaland sectoralvalueadded.Finally,WIODalsoaccountsforsectorallaboruseLU(inhoursfor threedifferentlevelsofqualification,low-,medium-,and highly-skilled).WecalculatethesectorallaborintensityLIr,sq insectors, regionrofqualificationqperunitofoutputasLIr,sq =LUr,sq /Or,s. Onthisbasis wecanprojecthowchangesinfinal outputrelate tochangesinlabordemandforeachsectorsandregionLUq∗r,s= LIr,sq ·O∗r,s.Thesumofallsectoralchangesineachregiongivesa roughindicationofimpactsonregionallabormarkets.
2.4. Discussionofthemethodology
Althoughthe analysisallows the identificationof the initial impactsofaglobalcarbonpriceatarelativelyhighlevelofsectoral detail,itfacesanumberoflimitations.
First, sectoral resolution is restricted by the availability of underlyingdata.Althoughtherearedatasetswithhigherregional resolution(Aguiaretal.,2016;Lenzenet al.,2013), wedecided touseWIOD,asit accountsfor thelargestand mostadvanced countrieswithhighqualitynationalaccounting.Thisisanasset (Steen-Olsenetal.,2015).
Second, using monetary input-output (IO) data implicitly assumeshomogeneityofproductsacrossregions.Thisassumption
5Giventhisassumption,weuseapriceelasticityofexportvaluestosimulatethe
short-termimpactofpricechangesinfinaldemand.Ouranalysisassumesthatall commoditiesproducedinagivensectoraresubjecttothesameelasticity(however, thecompositionofcommoditiesproducedineachsectordoesneednotbeidentical acrosscountries).
6Theelasticityreferstochangesintradevaluecausedbyanexporttax.The
ı-valueisclosetothenumbersobservedbyHeadandMayer(2014),who,ina meta-analysis,findamedianpriceelasticityfortradegravityequationsof-3.19.
Fig.1.Short-termpriceincreasesacrosscountriesfromaglobalUSD50carbon pricebyeconomicsector.Boxesrepresent25thto75thpercentiles,blackcenter linesrefertomedians,whiskersineachdirectioncorrespondtothe10thpercentile (lowerbound)andthe90thpercentile(upperbound).AnoutlierforCoke,Refined PetroleumandNuclearfuelshasbeenexcludedfromtheplot12.Theboxplots
indi-catetheheterogeneityincarboncontentofglobalsupplychainsoffinaldemand goodsendingintherespectiveregionalsector.
canbequestioned(forfurtherdetailsseee.g.Alexeeva-Talebietal. (2012);Steen-Olsenetal.(2015)andWardetal.(2017)). Consider-ingdifferencesinproductsacrosssectorsandregionswouldadd additionaldetail toourapproach.In thesamevein,usingmore heterogenic elasticitiesacross sectors could help refine results. However,giventhatproductsinacertainsectoraresimilaracross countries,itseemsunlikelythatthisextensionwouldoverturnthe maininsightsofouranalysis.
Third,thispaperaimstoidentifytheshort-termimplicationsof priceshocks.Thistypeofanalysisishighlyrelevantinassessingthe politicaleconomicimplicationsofdifferentpolicies(Fullertonand Muehlegger,2019),but doesnotappropriatelycapturedynamic adjustment effects in the long run. Long-term effects, suchas changesinglobalsupplychains,substitutionofcarbon-intensive inputs,orinducingtechnologicalchange,couldbeassessedwith computablegeneralequilibrium(CGE) models(seee.g.Carbone andRivers(2017)andMattooetal.(2009)).However,CGE mod-elsareunabletoappropriatelycaptureshort-termeffectsandthe (potentiallycostly)adaptationprocessesfromonestateof equilib-riumtoanother(FullertonandMuehlegger,2019).Ourapproach, bycontrast,considersglobalsupplychainsandinternational con-nectionsata higherlevel ofdetail thana CGE7, thusproviding
importantcomplementaryinformation.
3. Results
Thissectionfirstassessesshort-termpriceincreasesthatwould occur,byeconomicsectorandregion,inresponsetothe introduc-tionofaglobalcarbonprice.Wethenusethisinformationtoassess
12ThisoutlierisEstoniawitha53%projectedpriceincrease.Itislikelytobecaused
bythecomparativelylargeimportanceofEstonianshaleoilproduction(IEA,2009), seeTableA1intheSIforfurtherdetail.
7Typicallynestedproductionfunctions,whichareusedforCGEmodellinghave
Fig.2.ProjectedpriceincreasesduetoacarbonpriceofUSD50pertCO2vs.theshareofagivensectorintheregion’stotalvalueadded.Thedottedlinesshowtheaverage
priceincreaseacrossthecountriesconsideredandtheaverageregionalVADshare.OnlyregionswithaVADsharegreaterthantheglobalmeanareplotted.Valuesforprice increasesandregionalvalueaddedforallsectorsaregiveninTableA1andTableA7intheSI,respectively.
potentialimpactsoneconomicoutput,valueaddedand employ-ment.
3.1. Impactsonindustries
Fig.1 assessestheshort-termeffectofa globalcarbonprice ofUSD50pertCO2 onthepricesoffinaloutputacrosssectors. Foranygiveneconomicsector,thereisasubstantialvariationin termsof NNCCfor finaloutput,which canbeattributedto dif-ferencesin productiontechnologiesand energy systemswithin supplychains.Thisvariationresultsinsubstantialdifferencesin pricechangesoffinaloutputacrosscountriesforanygiven eco-nomicsector.Insomecountries,priceincreasesformetalswouldbe morethan20%,andmorethan15%forchemicals,plastic,and(fossil andnuclear)fuels.Thehighestlevelsofheterogeneityacross coun-triesareidentifiedforCoke,RefinedPetroleumandNuclearFuelas wellasOtherNon-MetallicMinerals(refertoTableA1inthe Sup-plementaryinformationforfurtherdetails).Thelowest(average) priceincreasesareprojectedforTextilesandTextileProducts, Man-ufacturingnec8,ElectricalandOpticalEquipment,andTransport
Equipmentand Machinerynec.Fromaregionalperspective,the highestpriceincreasesareprojectedinnewlyindustrializingAsian economies,suchasChina,IndonesiaandIndia.OtherEastAsian economies(suchasKoreaandTaiwan)aswellasEasternEuropean states(suchasRussiaor Bulgaria)alsodisplaycarbon-intensive supplyandproductionchains.Acarbonpricewouldresultin com-parativelylargeincreasesinthepricesofthefinaloutputofthese regions.Incontrast,economieswiththeleastcarbon-intensive sup-plyandproductionchains(severalEUmembersaswellasBrazil) wouldseeonlymodestpriceincreases.
8 nec=notelsewhereclassified
Forthreeofthefourmostcarbon-intensivesectors(Fuel,Other Non-Metallic-Minerals,ChemicalsandBasicMetals)andthe major-ityoftheothersectors,valueaddedispositivelycorrelatedwith carbon-intensity(seeTableA10intheSI).Thisobservationsuggests that countries withmore carbon-intensive production patterns wouldbeover-proportionally affectedbya globalcarbon price. Suchapolicywouldplacethehighestburdenonthemostimportant economicsectors.
Figs.2and3relatepriceincreasesthatwouldresultfromaglobal priceof50USDpertCO2inacertainsectortothatsector’s eco-nomicimportance.InFig.2economicimportanceismeasuredby thepercentagecontributionofaparticularsectortothenational value-added(VAD).Fig.3considersVADrelativetoglobalVADfor eachparticularsector(i.e.aproxyfortheproducingcountry’sshare oftheglobalmarket)9.Thedashedlinesrepresentglobalaverages.
Henceregionalsectorsofhighdomestic(Fig.2)orglobal(Fig.3) relevancewithintheglobalsamplearelocatedintherighthalf. Regionalsectorsinthetop-rightquadrantarealsoprojectedtobe subjecttostrongpriceincreases.
Forinstance,forChina’sTextilesector,weprojectarelatively largepriceincreaseofabout5%.Thissectoraccountsforabout3% ofChina’stotalVAD,andabout30%ofglobalvalueaddedinthe Textilesector.Incomparison,forTurkey(forwhichTextilesaccount forabout5%oftotalnationalVAD)thepriceincreasewouldbeonly about2%,whichisbelowtheglobalaveragepriceincreaseforthis sector.Hence,wewouldexpectaglobalcarbonpricetogeneratean increaseinTurkey’sglobalmarketshareinTextiles,butadecline
9Anadditionalinvestigationofcompetitivenessimpactsusing“Revealed
Fig.3.ProjectedpriceincreasesduetoacarbonpriceofUSD50pertCO2vs.theshareofaregionintheglobalvalueaddedforagivensector.Thedottedlinesshowthe
averagepriceincreaseacrosscountriesandtheaverageVADshare.OnlyregionswithaVADsharelargerthantheworldmeanareplotted.Valuesforpriceincreasesand sectoralsharesinglobalvalueaddedaregiveninTableA1andTableA6intheSI,respectively.
inChina’sshare.Likewise,forMetals,Chinawouldexperiencea priceincreaseofmorethan10%,whereaspricesinmostEuropean countriesaswellasJapanandBrazilwouldincreasebylessthan theglobalaverage.
Overall, the most severely affected economic activities are locatedindevelopingandEasternEuropeancountries.Although, forChina,manysectorsrepresentarelativelysmallVADsharein thenationaleconomy,thecorrespondingprojectedpriceincrease couldleadtosignificantshiftsintheglobaleconomyinabsolute terms.Duetoitssize,Chinaisthelargestglobalproducerin numer-ouseconomicsectors.TheAsianeconomiesofoursample(withthe exceptionofJapan)wouldbeparticularlynegativelyimpactedbya globalcarbonprice10.Bycontrast,USindustrieswithalargeshare
inglobalVADtendtobecleanerthanaveragesupplychains.This indicatesthattheintroductionofaglobalcarbonpricewouldboost theseindustries’comparativeadvantageandresultinincreasing marketshares.
3.2. Short-termeffectsonemploymentandGDP
Toassesspotentialshort-termeffectsofaglobalcarbonpriceon sectoralemploymentandnationalGDP,wecalculatethechanges infinaloutputthatwouldoccurasaresultofpricechanges assum-ingthattheindustriesconcerneddonotadjusttheirproduction
10AnadditionalmarketconcentrationanalysisisdoneintheSI.
methodsandworkersareunabletofindemploymentelsewhere
(seeSection2.3).Theresultsofthisanalysisshouldberegarded astheupperboundarymeasureoftheeconomicoutputandlabor forceunderpressure,ratherthananaccurateprojectionofGDP andjoblossesresultingfromaglobalcarbonprice.Understanding theextentoftheeffectsonGDPandthelaborforceunder pres-suremightbeofconsiderablepoliticalimportance;eventhough actuallossesinproductionandemploymentcanbeexpectedto reduce,theprospectoflosingafractionofoutputandemployment inagivenindustryislikely tobesufficienttogeneratepolitical resistanceamongworkersandshareholders.
Fig.4analyzesthetotalexpectedshort-termeffectsintodirect and indirecteffects. Directeffectsarethose thatwouldonly be caused by changes in final output. Indirect effects result from the additional changes in global supply chains that affect all downstreamsectorsproducingintermediateinputs.Valuesgreater (lower)thanone,denotepotentialgains(losses)inregionalGDP. For instance, a value of 1.01 denotes a potentialgain of 1% of regionalGDP.Overall,directeffectsdominateanddeterminethe directionofthetotaleffectformostregions.Totaleffectsrangefrom GDPunderpressureofabout3%forChinaandIndia,topotential gainsofabout1%forIreland.
Fig.4.DirectandindirecteffectsofaglobalcarbonpriceofUSD50pertCO2onGDP.Thefiguredistinguishesbetweendirecteffects(referringtosectoralfinaldemand
changesbyconsumers)andindirecteffects(referringtodemandchangesbydownstreamsectors).Thesizeofdotsreferstothetotaleffectinpercentagepoints,whichis obtainedbymultiplyingthetwofactors(directandindirect)andconvertingtheresulttoapercentagechange.TableA1intheSIprovidesvalues.
Fig.5.Projectedpressureonlabormarketsresultingfromaglobalcarbonpriceof50USDpertCO2.Theresultsconsiderthreedifferentlevelsoflaborqualification,i.e.
high,mediumandlow.Thebarsrefertothelefty-axis.Impactswhichareindicatedbydotsrefertotherighty-axis.Theresultspresentaceterisparibusimpactandmight thereforeserveasanupperboundoftheimpactonthejobmarket.
and2%ofthetotalworkforcerespectively11.Moreover,jobsare
impactedindifferentwaysdependingonthequalificationlevel.In thelargemajority(>75%)ofallcountries,low-skilledjobsare pro-jectedtoseethelargestrelativechanges.Thisisprobablybecause theproportionoflowqualifiedlaborisgreaterthanaverageinthe sectorsinvestigated,seeTableA8intheSI.InChina,morethan 2%ofthelow-skilledworkforcewouldbeunderpressure.Indiais anexception,asresultsindicatethatthemedium-skillworkforce wouldbemostseverelyaffected.Nevertheless,morethan3%of thelow-skilledworkforcewouldalsobeunderpressureinthis country.
4. Discussionandconclusions
Itisfrequentlyarguedthatunilateralclimatepolicymightlead toadditionalpressureonEITEindustriesandrelatedjobs,
partic-11 Thisisapproximatelythesameproportionoftheworkforcethathasbeen
affectedintheUSasaresultofChina’sentryintotheWorldTradeOrganization (Acemogluetal.,2016).
ularlyinindustrializedcountries.Thispaperdemonstratesthata globaluniformcarbonpricewould,however,simplyshiftthe prob-lemtodevelopingcountries.Thesenegativelyimpactedcountries andindustriesmightthereforebereluctanttoacceptbinding cli-matemeasuresorrefusetoconstructivelyengageininternational climatenegotiations.
Theresultspresentedinthispaperprovideaninitialbasisforthe developmentofsector-specificpoliciestolowerthevulnerability ofhighlyrelevantindustriestoaglobalcarbonprice,ortoincrease theircapacity todeal with the associated price increases.This mightbeofspecialimportanceforpoorercountriesconsidering thatmanufacturinghasbeenthe“mainavenueofrapideconomic convergence”, i.e. of high importance for developing countries (Rodrik,2015,p.28).Forcountrieswithcarbon-intensive electric-itysupply,e.g.China,theimpactscouldbesignificantlyreduced by de-carbonizing electricity production. Other alternativesare
to promote efficient technologies that reduce the demand for
Furthermore, a rational and successful climatepolicy might need toensure that losers are compensated(Trebilcock, 2014; UNEP,2017).Recyclingcarbontaxrevenuescouldprovidesuch opportunities(Goulder,1995;Klenertetal.,2018).Learningfrom pastexperiencesof(successful)structuraltransformationswithin developedeconomiescanalsohelpgenerateappropriatemeasures toensurea‘justtransition’(Smith,2017)towardsadecarbonized globaleconomy.
Statementofcontribution
HWcontributed theinitialresearchidea.HW developedthe analysisframeworkandanalyzeddatawithinputsbyMJandJCS. HW,MJandJCSwrotethepaper.
Acknowledgement
The authors gratefully acknowledges funding by the
Ger-man Federal Ministry of Education and Research (BMBF) grant
“Klimapolitische Maßnahmen und Transformationspfade zur
BegrenzungderglobalenErwärmungauf1,5◦C(PEP1p5)”, fund-ingcode01LS1610B.The authorsalsowant tothankAlexander Rohlf, Brigitte Knopf, Peter Ward, the participants of the 8th AtlanticWorkshoponEnergyandEnvironmentalEconomics,the participantsof theDIEworkshop onSustainableProductionand Consumptionandanonymousrefereesforvaluablecommentsand suggestions.
AppendixA. Supplementarydata
Supplementarymaterial relatedto thisarticle canbe found, intheonlineversion,atdoi:https://doi.org/10.1016/j.eneco.2019. 104549.
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