服务贸易的开放度与经济增长外文翻译.docx
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服务贸易的开放度与经济增长外文翻译.docx
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服务贸易的开放度与经济增长外文翻译
服务贸易的开放度与经济增长外文翻译
外文翻译
原文
OpennessinServicesTradeandEconomicGrowth
MaterialSource:
EeonomiesLettersVolume92,IssueZ,2006,p.277一283Author:
ElKhouryAntoineandSavvides.Andrea
abstract
Thispaperexaminestherelationshipbetweenopennessinservicestradeandeconomicgrowth.Weestimateathresholdregressionmodeltotestwhetheropennessinservicestradehasadifferentimpactonlow-andhigh-incomecountries.Weconsideropennessinbothtelecommunicationandfinancialservices.Resultsconfirmtheexistenceofatwo-regimesplitwithlow-incomeeconomiesbenefitingfromgreateropennessintelecommunicationservicesandhigh-incomeeconomiesfromfinancialservicesopenness.
KeyWords:
Servicestrade,telecommunicationservices,financialservices,economicgrowth.
OpennessinServicesTradeandEconomicGrowth
1.Introduction
Thecostsandbenefitsofopennesstointernationaltradeforeconomicgrowthhavebeenstudiedextensively.Diversemeasuresofopennesstotradehavebeenusedreferringmainlytotradeincommoditiesandinclude,interalia,theshareofexports/importsinGDP,measuresoftheprevalenceoftariffs/quotasincommoditytrade,orgeneralqualitativeindicatorsofopenness.Studies,onthewhole,demonstratethepositiveeffectsofinternationaltradee.g.Dollar,1992;FrankelandRomer,1999;andSachsandWarner,1995thoughdissentingviewshavebeenvoicede.g.RodríguezandRodrik2001.
Todate,verylittlehasappearedonthegrowtheffectsofopennessinservicestrade.Thisshould,perhaps,notbesurprisinggiventhatservicesconstituteanewdimensioninregionalandmultilateraltradeagreements,especiallywithintheauspicesofrecentandproposedWTOtraderounds.TheviewthatgreateropennessinservicestradeisassociatedwithhighergrowthseemstohavetakenholdamongstsomepolicymakersrecentlyEmpiricalevidenceonthisissue,however,hasbeenscant.ArecentarticleinTheEconomist2004emphasizesthefactthatawell-establishedinfrastructureisnecessaryinorderforopennessinservicestradetohaveapositiveimpactongrowth.Thearticleisconcernedwhether“…ICTs[informationandcommunicationtechnologies]mighthavelessimpactonproductivityinpoorcountriesthaninrichcountries”and“…whetheracertainthresholdlevelofadoptionisrequiredbeforetheproductivitybenefitsofICTskickin.”Itquestionswhetherthebenefitsfromliberalizingtradeinservicesarethesameforlow-andhigh-incomecountries.
Theobjectiveofthispaperistwofold:
first,toaddtotheverylimitedevidenceontheeffectsofliberalizingtradeinservicesoneconomicgrowth;second,totestthehypothesisthatathresholdlevelofdevelopmentpercapitaincomeexistsintherelationshipbetweenservicestradeopennessandeconomicgrowth,andthecorollarythatthebenefitsfromservicetradeliberalizationdonotmaterializeuntilsuchathresholdisachievedWefocusontwoserviceindustries:
telecommunicationandfinancialservices.
TotesttheunderlyinghypothesisweusethethresholdregressionTRmodel,aneconometrictechniquethatselectsendogenouslyandtestssimultaneouslytheexistenceofathresholdlevelofpercapitaincome.
2.Thethresholdregressionmodelandopennessinservicestrade
Hansen’s2000TRmodelallowsforanendogenoussamplesplitHedevelopsasequentialsearchalgorithmtodeterminethevalueofthethresholdandaLagrangemultipliertestforitssignificance.Papageorgiou2002usestheTRmodelinthecontextofagrowthregressionandfindsthatinitialincomepercapitaisasignificantfirst-roundthresholdindicator.Insubsequentrounds,literacyandgeneralopennesstotradetheshareofexportsplusimportsinGDParealsosignificantthresholdindicators.
Inourmodel,thethresholdvariableisinitialincomepercapitaandtheunderlyinghypothesisisthattheimpactofservicetradeopennessoneconomicgrowthdependsonacountry’slevelofdevelopmentincomepercapitaWeestimatethefollowinggrowthregressionmodel:
gi?
XiOPtelOPfinlnGDP?
?
lnGDPigi?
?
XiOPtelOPfinlnGDPi?
lnGDPi
whereigistheaverageannualgrowthrateofpercapitaGDPforcountryi,Xiavectorofconditioningvariables,OPtelandOPfinmeasureopennessintelecommunicationandfinancialservicestrade,respectively,lnGDPiistheloginitiallevelofpercapitaincome,and,?
11,,?
15?
?
and?
21,,?
25?
?
arethethresholdlevelandparametervectorstobeestimated,respectively.
Thefocusofthisstudy,theindicesOPtelandOPfin,arefromMattoo,RathindranandSubramanian2001.Theyareconstructedtoreflectapolicy-basedmeasureofliberalizationofacountry’sservicessectors.Theyassumevaluesfrom1to9telecommunicationservicesand1to8financialserviceswithhighervaluesindicatinggreateropenness.Theconstructionofthetelecommunicationsindexwasbasedonmarketstructure,thedegreeofforeignownershipandtheexistenceofindependentregulators.Thefinancialopennessindexwasbasedonmarketstructure,foreignequity,andDailami’s2000capitalcontrolindexthattakesintoconsiderationthecodingofrules,regulationsandadministrativeproceduresthatcanaffectcapitalflows.Onevalueofeachindexisavailableforeachcountryreferringtoobservationsduringtheearly1990s.
Thedependentvariableistheaverageannualgrowthratebetween1990and2000toreflecttheavailabilityofthetwoindexesduringtheearly1990s.Thevectorofconditioningvariables,Xi,includes:
thegovernmentconsumption/GDPratio,laggedinvestmentrate,inflationrate,meanyearsoftotalschoolinginthepopulationabove15ameasureofhumancapitalandtheratioexportsplusimport/GDP.Thesevariableswereselectedasrepresentativeofconditioningvariablesinthegrowthliteraturee.g.Levineetal.,2000.DataforallthesevariablesarefromtheWorldDevelopmentIndicators,exceptformeanyearsofschoolingfromtheBarro-Leedatabase.Allconditioningvariablesaredecadalaverages.
3.Empiricalresults
ResultsareinTable1Thefirstfourcolumns1-4showleastsquaresestimateswithoutathreshold.Column1isourbasicgrowthspecification.Anissueofconcernisthatourtwoservicetradeindexesmaybecorrelatedwiththegeneraldegreeofopennessand,thus,mayproxyfortheeffectsofoveralltradeopenness.Forthisreason,thesecondspecificationcolumn2includesanindicatorofoveralltradeopennesstheratioofimportsplusexportstoGDP.Thethirdspecificationomitstheinvestmentratetoinvestigatethechannelsphysicalcapitalaccumulationorproductivityviawhichserviceopennessinfluencesgrowth.Thefinalspecificationcolumn4omitsboththeinvestmentrateandoveralltradeopennessTheestimatesshowthatgreateropennessinthetelecommunicationaswellasfinancialservicessectordoesnothaveasignificanteffectongrowth.Theconditioningvariableshavetheexpectedsignsbut,exceptforinvestmentinphysicalcapital,tradeopennessandgovernmentsizeinsomespecifications,areinsignificant.
Next,weemploytheTRmodel.ThebootstrappedLagrangemultiplierteststatisticswith1000replicationsaresignificantforallspecificationsp-values0.011,0.009,0.016and0.066.Therefore,incomepercapitasplitsthesamplesignificantly.Theleastsquaresestimateof?
?
?
isconsistentacrossspecifications:
?
?
$3310forspecifications1-3and$3150forspecification4.1Forthefirstthreespecificationsthethresholdleveldividesthesampleof60countriesintotwosubsamples23countriesbelowand37above;2forthefinalspecificationitdividesthesampleintoalower-income21andahigher-incomegroup39.
Columns1a-4ashowparameterestimatesforobservationsbelowthethresholdandcolumns1b-4bforobservationsabovethethresholdthatcorrespondtothefourspecifications1-4.ThefitoftheTRregressionsasrepresentedbyR2improvescomparedtoleastsquaresestimationForcountriesbelowthethresholdtherelationshipbetweenopennessintelecommunicationservicestradeandgrowthispositiveandhighlysignificant;thereisnoevidence,however,ofasignificantrelationshipbetweenopennessinfinancialservicesandgrowth.Forcountriesabovethethresholdtheresultsarereversed:
thereisevidenceofapositiveandintwospecificationssignificantrelationshipbetweenopennessinfinancialservicestradeandgrowth,butnosuchevidenceforopennessintelecommunicationservicestrade.3Overalltradeopennesshasapositiveandsignificantimpactongrowthforthehigh-incomegroupandalsoapositiveandmarginallysignificanteffectforthelow-incomegroupWhentheinvestmentratioisexcludedfromthecontrolvariablesinthefinaltwospecifications,themainresultconcerningtheestimatedcoefficientsforservicesopennessforthetwogroupsremainsvalid.Weinterpretthisasevidenceconsistentwithopennessinservicestradeinfluencingtherateofeconomicgrowthboththroughphysicalcapitalaccumulationandproductivitygrowth.Finally,incontrasttotheresultsforthecompletesample,wenoteevidencefavorabletoconditionalconvergenceforthetwogroupsofcountriesseparately,anobservationconsistentwiththenotionofconvergenceclubs.BecauseourresultsarebasedonthesamplesplitviatheTRmodel,wetestedtheirrobustnesstoalternativemethodsofsamplesplitting.Onealternativeistointroduceinteractiontermsbetweeninitialpercapitaincomeandthetwoindicesofopennessinservicestrade.Theparameterestimateswitht-statisticsinparenthesesforspecification2similarresultsholdtruefortheotherspecificationsare:
g0.029?
0.023GovernmentSize?
0.00094Inflation+0.00107HumanCapital
0.540.620.901.01
+0.0456InvestmentRate+0.00004
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- 服务 贸易 开放 经济 增长 外文 翻译