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截止时间:2016年6月3日

I.PerCapitaIneGap

Asmentionedabove,datafromthePennWorldTableareusedincalculatingtheinegap.ThePennWorldTablecalculatestherealGDPpercapitaofvariouscountriesininternationaldollars(I$)using2005asthebaseyear.Accordingtothisanalysis,the1990percapitaineofChinaresemblesthe1963percapitaineofKoreamost.Therefore,therewasa27-yeargapintermsofpercapitaineasof1990.Thisinegaphasbeennarrowedeversince.Asof2007,therewasa21-yeargapbetweentheinelevelsofthetwocountries,asshowninTable1.Inestimatingandparinginelevelsacrosscountriesandyears,statisticalerrorcanariseduetoinaccurategrowthrateestimatesandpurchasingpowerdisparities.Therefore,itismoreimportanttofindoutthegeneraltrendofestimationrathertotaketheestimatednumbersseriously.

<,Table1>,RealGDPpercapitaofChinaandKorea

(unit:I$,2005constantprices)

China*KoreaTimeGap(Years)19901,92419631,9262719953,07219703,0302520004,40019764,4362420056,48319836,5202220077,86819868,09321Note:*ChinaVersion2dataareused.Thisisbasedonrecentmodificationsoftheofficialgrowthrate.

Source:AlanHeston,RobertSummersandBettinaAten,PennWorldTableVersion6.3,CenterforInternationalComparisonsofProduction,IneandPricesattheUniversityofPennsylvania,August2016.(pwt.econ.upenn.edu/).

Inordertoverifytheaboveestimation,letusestimatetheinegapusingdatafromtheIMF.IMFpublishestimeseriesdataofGDPpercapitaatcurrentandconstantpricesaswellaspurchasingpowerparity(ppp)conversionrateofeachcountryfrom1980.Usingthesedatabase,wecanestimatetheinegapbetweenChinaandKorea.First,wecanconverttheChineseGDPpercapitaatcurrentpriceinyuanintoKoreanwonusingpppconversionratesoftwocountries.Forexample,theChineseGDPpercapitaatcurrentpricein2016was29,669yuan.Basedonpppconversionratesoftwocountries,29,669yuanin2016isasvaluableas5,998,777won.InordertoconvertitintorealGDPpercapita,weuseGDPdeflatorofKorea(baseyear等于2005).Then,5,998,777wonat2016currentpriceisasvaluableas5,360,166wonat2005constantprice.ItimpliesthattheChineseGDPpercapitain2016isasvaluableas5,360,166woninrealtermwhenweconsiderpppoftwocountries.Inthiscase,the2016percapitaGDPofChinaresemblesthe1985percapitaineofKoreamost.Therefore,wecanconcludethatthereexists25-yearstime