JournalofDevelopmentEconomics111(2014)132–149 ContentslistsavailableatScienceDirect Journal of Development Economics journal homepage: www.elsevier.com/locate/devec Can cultural norms reduce conflicts? Confucianism and peasant ☆ rebellions in Qing China JamesKai-singKunga,b,⁎,ChichengMac aDivisionofSocialScience,TheHongKongUniversityofScienceandTechnology,ClearWaterBay,Kowloon,HongKong bInstituteforAdvancedStudy,TheHongKongUniversityofScienceandTechnology,ClearWaterBay,Kowloon,HongKong cSchoolofEconomics,ShandongUniversity,27ShandaNanlu,Jinan,ShandongProvince,China a r t i c l e i n f o a b s t r a c t Articlehistory: Canculturemitigateconflictstriggeredbyeconomicshocks?InlightoftheextraordinaryemphasisthatConfu- Received3January2014 cianismplacesonsubordinationandpacifism,weexamineitsroleinpossiblyattenuatingpeasantrebellionwith- Receivedinrevisedform25August2014 inthehistoricalcontextofChina(circa1651–1910).Ouranalysisfindsthat,whilecropfailuretriggerspeasant Accepted28August2014 rebellion,itseffectissignificantlysmallerincountiescharacterizedbystrongerConfuciannormsasproxiedby Availableonline6September2014 Confuciantemplesandchastewomen.Thisresultremainsrobustaftercontrollingforalonglistofcovariates andinstrumentingConfuciannormsusingancientConfuciansages(500B.C.–A.D.550)toaddressconcernsof Keywords: measurementerrorandreversecausality. Culturalnorms Confucianism ©2014ElsevierB.V.Allrightsreserved. Economicshocks Conflicts Peasantrebellions 1.Introduction havehadthebenigneffectofreducingsocialconflictstriggeredby economicshocks. Thereisnowmoreorlessaconsensusthateconomic (climate) We predicate ouranalysis on a specific form of social conflict— shockstendtotriggersocialconflicts(BaiandKung,2011;Besleyand peasantrebellions—andexaminewhethertheculturalnormsassociated Persson,2011;BrucknerandCiccone,2010;CollierandHoeffler,1998, withConfucianismservedtoattenuatetheeffectofeconomicshocksin 2004;Migueletal.,2004;amongothers).Butmuchlessisknown,at triggeringpeasantrebellionsinthelast267yearsofChina'sdynastic least empirically, about the potential attenuating effect of cultural rule(theQingdynasty,circa1644–1911).Peasantrebellionsarethe normsonconflicts,despitethetheoreticalclaimthatsuchaneffect principalformofsocialconflictinagrariansocieties.Inthesesocieties, exists(Funk,2004;Posner,2000;Putnam,2000;Rasmusen,1996).1 peasantslivesoclosetosubsistencethatperiodicfoodshortagescaused Byemployingauniquedataset,weexaminewhetherasetofcultural bythevagariesofweathereasilygiverisetowhatJamesScott(1976) (Confucian)normsthathavepersistedforatleastseveralmillennia termed“subsistenceethic”—anideologythatjustifiestheoccasional robbingandplunderingforthesakeofsurvival.Thetieswithwhich thepeasantrebelshavehadwiththeirvillagecommunitiesrender ☆ Wethanktheeditor,NathanNunn,andtwoanonymousreviewerswhosesuggestions themneitherfull-timemilitarynorcriminals,onlysomeoneforcedto havehelpedimprovethisarticlesubstantially.WealsothankYingBai,MarkusBruckner, switch from farm work to robbery in times of economic hardship QiangChen,LiHan,RuixueJia,WolfgangKeller,Yi-minLin,DebinMa,Tuan-HweeSng, andparticipantsattheEconomicHistoryAssociation's2010AnnualMeeting,the2012 (Hobsbawm,1972;Scott,1976).This“two-faced”natureofpeasants AsianHistoricalEconomicsConference,andvariousotherseminarsforhelpfulcomments renders peasant rebellion a uniquely interesting form of conflict andsuggestions.JamesKungacknowledgesthefinancialsupportoftheHongKong whoseoccurrencemayoccasionallybesparkedbyeconomicshocks. ResearchGrantsCouncil(grantno.642711)andYanAiFoundation(grantno.R8008). Tosuppressthis“subsistenceethic”,China'semperorshadtirelessly Chicheng Ma acknowledges the financial support of the National Natural Science inculcatedinthepopulaceConfuciannormsthroughoutthecountry's FoundationofChina(grantno.71303135).Wearesolelyresponsibleforanyremaining errors. long history (circa206 B.C.to A.D. 1911).2By inducingshameand ⁎ Correspondingauthorat:DivisionofSocialScience,TheHongKongUniversityof moraldistressinthosewhofailtoabidebytheprinciplestaught,Confu- ScienceandTechnology,ClearWaterBay,Kowloon,HongKong. cianismstressestheimportanceof“subordination”—ofasubjecttothe E-mailaddresses:[email protected](J.K.Kung),[email protected](C.Ma). 1 Anotableexampleisshamingpunishments,whichinvolvedeliberatepublichumilia- tionandmoraldistressoftheoffender,asanalternativetotheformalcriminaljusticesys- 2 ItiseasytounderstandwhytheChineseemperorswereconcernedaboutpeasantup- tem(Posner,2000).RecentendeavorsoftheUnitedNationsandotherinternational risings.Throughoutthecountry'slonghistory,peasantrebellionshaddirectlyoverthrown communitiesinimplementinga“peaceeducationprogram”inthoseareasofAfricarife Qin(221–207B.C.),Han(202B.C.–A.D.220),Sui(581–618),Yuan(1271–1368),andthe withcivilconflictsarepremisedonthisprinciple(Blattmanetal.,2011;UNICEF,2009). Mingdynasties(1368–1643)(Wakeman,1975). http://dx.doi.org/10.1016/j.jdeveco.2014.08.006 0304-3878/©2014ElsevierB.V.Allrightsreserved. J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 133 ruler,ofasontohisfather,andofawifetoherhusband;theintended incivilserviceexaminations,whosesyllabialsodrewheavilyonthe resultwasconflictavoidance.Tofosterthisethos,theChineseemperors memorizationofConfucianclassics.ToruleoutthepossibilitythatCon- builttemplestohonorConfuciusandhisfollowers,praisedtheso-called fuciannormsmayaffectpeasantrebellionsviathechannelofsocialmo- chastewomen(lienv)forthesacrificetheyallegedlymadebyremaining bility(i.e.,thosewhofailedtheexambecamearebel),weemploythe aswidowsorevencommittedsuicideupontheirhusbands'deaths,3 number of county/prefectural level degree holders (shengyuan) to developedaneducationandcivilserviceexaminationsystembased proxyforsocialmobility,assuchadegreeisthetickettothegentry almostexclusivelyonthememorizationofConfucianclassicsandrote classandfacilitatedupwardmobility. learning,4andsoforth.WhiletheConfucianethoswasundoubtedly Thenthereistheissueofstatecapacity,whichislikelytoreduce underminedduringthetumultuoustimesoftheCommunistrulein conflictsbutmayalsosimultaneouslyaffectthediffusionofConfucian thetwentiethcentury,ithasbeenrevivedandpersistseventothis norms.Toreducethispossibility,weexpandourlistofcontrolvariables day.5Indeed,fewcivilizationshaveseenthepersistenceofcultural toincludealsothenumberofimperialsoldiersstationedinacounty,a normsforsuchalongperiodoftime,whichpresentsanidealsituation county'sfaminereliefcapacity(granaries)andfiscalcapacity(land fortestingthepossibleeffectofcultureonconflictreduction. tax),andacounty'spoliticalstatus(ofbeingaprefecturalcapital). Todothis,weconstructapaneldatasetof107countiesinShandong TaoismandBuddhism—tworeligious-cum-philosophicalbeliefs— Provincethatcovers260years(1651–1910),aperiodthatbasically similarlyadvocateharmony,andsowecontrolforthembyenumerat- overlapswiththeQingdynasty.Afterseveralmillenniaofdiffusion, ingtheirtemples.Bythesametoken,wealsocontrolforthepossibleef- ConfucianismhadbytheQingdynastybeenfirmlyestablishedasthe fectofWesterninfluenceinthelateQingperiodbyemployingtheyears cornerstoneofmoralityintheChinesesociety,permeatingthoroughly ofopeninguptotheWest(usingthedurationoftreatyportsasproxy) to even the bottom rung of the social hierarchy (Ho, 1962; Yang, andtheyearsof(Christian)missionarypresence.Inordertodisentangle 1961).AsforchoosingShandongProvince,thereasonsaretwo-fold. thehypothesizedmitigatingeffectofConfuciannormsfromtheabove ForemostisthatQufuCountyofShandongProvinceisthebirthplace listofcontrols,weinteractthesecontrolswithcropfailure. ofConfucius;choosingShandongProvincethusallowsustoexamine Ourempiricalanalysisfindsthat,whileeconomicshocksasmea- the purest effect of Confucian culture in reducing social conflicts.6 suredbycropfailuredohavetheexpectedpositiveeffectonthenumber Shandongisalsoidealforstudyingpeasantrebellionsbecausehistori- ofpeasantrebellions,theeffectissignificantlysmallerincountieswith cally,certainpartsoftheprovincehadbeenpronetobothdroughts strongerConfuciannorms.Whilewecannotruleouteveryconceivable andfloodsandhadturnedouttobetheheartlandofpeasantrebellions factorthatmightbecorrelatedwithbothConfuciannormsandpeasant inChina. rebellions,theevidencegatheredissufficientlyrobustinsubstantiating Empiricallymeasuringthestrengthormorespecificallythepopular- theclaimthatConfuciannormsorculturehavehadamitigatingeffect ityofConfucianism,however,ischallenging.Inlightoftheimportance oneconomicshocksandaccordinglypeasantrebellions. thattheChineseemperorsaccordedtothe“religion”andthepraises Giventhattemplesmaybedestroyedduringcivilconflicts,reverse theyshoweredonlocalConfucianexemplars,weemploythenumbers causalitycannotberuledout.Arelatedconcernispossiblemeasure- ofConfuciantemplesandchastewomentoproxyforthestrengthof menterrorarisingfromthecrudenessofourproxiesforConfucian Confucianism.Giventhatculturalnormstendtoevolveveryslowly norms.Toaddresstheseissuesweadoptaninstrumentalvariableap- overtime,ourtwomeasuresofConfucianismshouldbefairlystable proachinwhichweemploythenumberofancientConfuciansages throughouttheQingdynasty. thateverlivedpriortotheQingdynasty(from500B.C.toA.D.550)to ToempiricallyassessifConfuciannormsplayanysignificantrole instrumentforthestrengthofConfuciannormsduringQingtimes. inmitigatingtheeffectofeconomicshocksonpeasantrebellions,we OurchoiceispremisedonthereasoningthatthestrengthofConfucian relyontheresultsoftheinteractionbetweenyearlyincidenceofcrop normsasithaddevelopedoverthepast2000yearswouldlikelyhave failureineachcountyandConfuciannormswithintheframeworkofa continuedintotheQingdynastyandthusbestronglycorrelatedwith generalizeddifference-in-differencesapproach.Thisallowsustouse it.ConsistentwiththeOLSfindings,theinstrumentedresultsreaffirm county-andyear-fixedeffects tocontrol forall the county-specific thattheeffectofeconomicshocksonpeasantrebellionsissignificantly factorsandthecommontrendfacedbyallthecountiesalikethatmay reducedbystrongConfuciannorms. bearuponbothpeasantrebellionsandConfuciannorms. Ourstudycontributestoanemergingliteraturethatexaminesthe Buttheeffectofculturecouldstillbeconfoundedbyotherunob- mediatingeffectsofpoliticalinstitutions,culture,andtechnologyon servedsocioeconomiccharacteristicscorrelatedwithbothConfucian conflicts.Forexample,BesleyandPersson(2011)findthattheeffect normsandpeasantrebellions.Anotablecaseinpointiseconomicpros- ofeconomicshocksonpoliticalviolenceexistsonlywherepoliticalin- perity,whichislikelycorrelatedwiththenumbersoftemples,onthe stitutionsarenon-cohesive.Similarly,Jia(2014)observesthatthetrig- onehand,andpeasantrebellionson theother.We control forthis geringeffectofdroughtsonpeasantrevoltsinhistoricalChinacouldbe possibleomissionbyemployingtwoproxies—thesuitabilityofland mitigatedbytheintroductionofNewWorldcrops—specificallythe forplantingthemajorcropsatthetimeandthelevelofurbanization. sweetpotatoes.Likewise,Fetzer(2013)reportsthatinIndiaasocialin- AsConfucianclassicsmadeupthecorecurriculuminschools,our surance scheme known as the “Indian National Rural Employment measuresofConfucianismlikelyalsocapturetheeffectofeducation Guarantee”hashadthevirtuouseffectofmitigatinginsurgencyviolence onpeasantrebellions.TodisentangletheeffectofConfucianculture triggeredbyincomeshocks. fromthatofeducation,wecontrolforthenumberofschoolsineach Ourstudyalsocontributestoasmallbutgrowingliteraturethatex- countytoproxyforeducation.Arelatedpossibleomissionissocial aminesthedirecteffectofculturalnormsonconflicts,violenceand mobility.InlateimperialChina,socialmobilitywasachievedviasuccess crime.Forexample,VoigtlanderandVoth(2012)findthatmedieval anti-SemitismcanexplaintheviolenceagainsttheJewsinthe1920s. Similarly,FismanandMiguel(2007)findthatdiplomatsfromcountries 3 ThesewomenallegedlyexemplifiedtheimportantvirtuesofConfucianism,namely withseverecorruptionproclivitieshaveatendencytocommitparking subordination,loyaltyandpurity. 4 Establishedinthetenthcentury,thecivilserviceexaminationwasdesignedtoselect violationsintheUnitedNations.Ofcourse,notallculturalnormshave qualifiedcandidatestoserveinthestate'sbureaucracy. anegativeimpactonsocialbehavior.Weaimtodemonstratehow,in 5 AfterbeingdenouncedduringtheCommunistera,Confucianismwasrecentlyem- thecontextofChina'slonghistoryofcivilization,thestablecultural braced,albeitcautiouslybytheChineseCommunistPartyonceagainasthemoralcorner- normsofConfucianismhadtheeffectofmitigatingsocialconflictstrig- stoneonwhichto“re-establish”socialmoralityandmaintainaharmonioussociety.The geredbyeconomicshocks.Inthisrespect,ourworkcoincideswiththat Economist,April28,2011. 6 WewouldhavelikedtotestthehypothesisonChinaasawhole,buttheamountof ofMacCullochandPezzini(2010),whofindthatChristianbeliefshave timeandeffortrequiredtocollectthenecessarydatawouldbeprohibitivelyarduous. thebenigneffectofreducingthetasteforrevolts,andisinlinewith 134 J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 Buonannoetal.'s(2009)findingthatafearofsocialstigmatizationand 2.2.Confucianism ostracismcansimilarlydetercriminalbehaviors. Theremainderofthisarticleproceedsasfollows.Thenextsection Moralsuasion,especiallywhenappliedviathesubtleindoctrinatingin- (Section2)providesahistoricalbackgroundonpeasantrebellionsand fluence of cultural norms, can be an effective means of governance. ConfucianisminlateimperialChina.Section3describesoursample Throughoutvariousdynasties,China'simperialauthoritieshadindeed andtheconstructionofourvariables.Theeffectsofeconomicshocks appealedtothevirtuesofsubordinationandpacifism—thetwinpillarsof andConfucianismonpeasantrebellionsareexaminedinSection4. Confucianism—insuppressingthe“subsistenceethic”.11Thefoundingem- Section5checkstherobustnessofourestimationsbyaddingawide peroroftheMingdynasty(1368–1643),ZhuYuanzhang,wasconvinced arrayofcontrols,whereasSection6discussestherationaleandresults that“indoctrinationisthekeytogovernacountry”.Asamatteroffact, oftheinstrumentalvariableestimations.Section7providesabrief mostemperorsinChinesehistoryhadreligiouslyadheredtothefollowing conclusiontothestudy. creedfromConfucius:“Leadthepeoplewithgovernmentalmeasuresand regulatethembylawandpunishment,andtheywillavoidwrongdoing butwillhavenosenseofhonorandshame.Leadthemwithvirtueandreg- 2.Historicalbackground ulatethembytherulesofpropriety,andtheywillhaveasenseofshame and,moreover,setthemselvesright”(Confucius,1993). 2.1.EconomicshocksandpeasantrebellionsinhistoricalChina Indeed, Confucianism had been actively promoted by various Chineseemperorsasorthodoxideology(statereligion)forovertwo ByandlargepeasantrebellionshadafflictedtheentireimperialChina thousandyears(throughoutalmosttheentiredynastic regime) on (221B.C.–A.D.1911),whichforthousandsofyearshadremainedapre- groundsofthepowerfulconvictionthatits“pacifist”doctrinesarecapa- dominantlyagrarianeconomysubjecttothevicissitudesofweather.7In bleofdiscouragingconflictsandviolence.Asacomplexsystemofethics, this“landoffamine”,toborrowMallory's(1926) term,therepeatedrav- Confucianismhaspersistedtenaciouslyforseveralmillenniasincesixth agesofweathershocks,periodicfoodshortages(andfaminesinthemore centuryB.C.whenConfucius(551–479B.C.)firstbeganteaching.Ina extremeinstances)andaccordinglypeasantrebellionswereindeedare- nutshell,Confucianismpreachesthepursuanceofharmonioushuman currentfeatureofruralChina'seconomicandsocialreality.8 relationsthroughthecultivationor(moreappropriately)indoctrination Theperiodicfoodshortagescausedbythevagariesofweathereasily ofthetwinvirtuesofsubordinationandpacifism.12Embodiedinthe gaverisetowhatScott(1976)termed“subsistenceethic”—onethatjus- ThreeGuidingPrinciples(sangang),whichhadbeenactivelypromoted tifiestheoccasionalrobbingandplunderingbypeasantswhentheir throughoutvariousimperialregimes,theConfucianethicsadvocate subsistence is threatened (see also Hobsbawm, 1972). Wakeman's specificallythesubordinationofasubjecttotheruler(withadistinct (1975,p.6)depictionoftheChinesepeasant–rebelassomeonewho emphasisonloyaltytowardtheemperor—theso-called“Mandateof “constitutedtheeconomicfoundationoftraditionalChinesesociety” Heaven”),ofasontohisfatherandofawifetoherhusband.Bydistinct- (bydevotingtheirlivestolaboriousfarmwork),butalso“steppedout lyemphasizingfilialpietyandsubordinationwithinthefamily,the ofthisroleandmomentarilyattachedthemselvesjustasfirmlytoam- lattertwoprinciplesconstitutethemicro-basisjustifyingsubordination bitiousbanditsattheheadofrebelarmies”wheneconomicresources totherulers—thefirstandoverridingprinciple(Yao,2000). werescarce,isanexcellentexampleofthe“subsistenceethic”atplay. WhiletheThreeGuidingPrincipleslaydownaclearsubordinating Indeed,thispatternof“timeallocation”betweenfarmingandbanditry relationshipbetweenactorswithinboththesocietyandfamily,theFive isconsistentwiththerecordsofQingChina'sBoardofPunishments, ConstantRegulations(wuchang)stressanumberofsocialnorms(compas- whichfoundthatbanditrywas“usuallyaseasonalactivitycloselytied sion,righteousness,propriety,wisdom,andfaithfulness),theviolationof totheagriculturalcalendar”.Inparticularthe“primetimeforbandits” whichwouldleadtoseverepenaltyintheformofstigmatizationandos- coincided with the slack farming seasons in the winter months of tracismwithinone'scommunityandfamily.Fearofsuchpunishments,it NorthChinawhentherewaslittleifanyworktobedone,withbanditry isbelieved,wouldhelpsuppressviolenceandreduceconflicts(Yao,2000). fallingoffremarkably“afterenteringthebusyagriculturalseasonof Spring”(Esherick,1987,pp.22–3).9 Thus,notwithstandingthefactthatsomewell-knownpeasantrebel- 2.3.ThediffusionofConfucianism lionsinthecourseofChinesehistoryhadresultedindynasticdecline, thevastmajorityoftheserevoltsweremerelylocalunrestsinvolving From(asearlyas)theWestHandynasty(206B.C.–A.D.9)onwards,the the plundering of resource-rich and powerful officials by no more imperialauthoritieshadconsciouslyandpersistentlypromotedtheConfu- thanseveralhundredpeasantsintimesofeconomichardship.Yang cianvirtuesthroughthefollowing:1)theerectionoftemplesforworship- (1975)offersevidenceofthisinhisstudyofsocialunreststhatoccurred pingandhonoringConfuciusandthoseadheringreligiouslytohiscardinal duringthesecondhalfofChina'sQingdynasty(1796–1911),wherehe principles,and2)honoringbehaviorthatemphasizedtheseprinciples. foundthatlessthan4.7%ofthepeasantrebellionsenumeratedinvolved TheerectionofConfuciantempleswithinwhichtheassociatedrit- over10,000participants.10 ualscouldbepracticedrepresentedanimportantmeansofpromoting Confucianism(Chow,1994;Ho,1962;Yang,1961).Specifically,local governmentswererequiredtobuildtemplesandtoperformsacrificial ritestoworshiptheConfuciansageslikeConfuciusandMenciusand theirfollowers(theConfucianscholars).13Meanwhile,localofficials 7 Infact,Chinaremainedanagrarianeconomyuntiltheearlytwentiethcentury,with roughly95%ofthepopulationstillclassifiedaspeasantsthen(Zhang,1931). 11 AccordingtohistoriansofChina,theuseofmoralsuasionforsocialcontrolwasalsoa 8 Evidencebasedonthepastseveralthousandyearsshowsthatdroughtshadoccurred consequenceofthefollowing:a)thesheerareaofthecountryandsizeofitspopulation, attherateofroughlyonceeverysevenyearsinthenorthernandcentralprovinces,but andb)thelackofamodern,sophisticatedbureaucraticsystem(Hsiao,1960;Wakeman, aboutonceeveryfouryearsintheotherprovinces(Mallory,1926).Moreover,thelack 1975). ofirrigationinfrastructureinmostplacessuggeststhatcropyieldswereatthemercyof 12 FromtheConfucianperspective,thecausesofconflictlieinone'sownheart;people theweather(Sun,1957). willnaturallyhavepeacewhentheheartisatpeace;itisnotrichesorpower,butvirtuous 9 ThisfeatureofpeasantrebellionswasfoundespeciallypervasiveontheNorthChina mannersthatconstituteharmonioushumanrelations.Incontrast,anuncultivatedcharac- plainduringthenineteenthcentury,wherean“aggressivesurvivalstyle”—articulatedin tercausesonetobeunhappyandpronetocomplaints,triggeringconflictsandviolence theformsofbanditry,organizedfeuds,andlocalmilitarization—sawthepeasantsalternat- (Yao,2000,pp.179–80). ingbetweenfarmingandbanditryconditionalonthevagariesofweather(Perry,1980). 13 EmperorYongzheng(1722to1735)oftheQingdynastydecreedthatcountiesshould 10 Wolf(1969),Chesneaux(1973),Feuerwerker(1975),Tong(1991),andRowe(2009) buildtemplesinwhichmen(andwomen)whoexcelledinfilialpietyandloyaltyshould paintasimilarpictureofpeasantrebellionsinhistoricalChina. bedulyhonored. J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 135 andgentry,whoweredeeplyschooledinethicalConfucianismthem- venerationoftheConfuciansagesislikenedtotheChristians'worship selves,putagreatdealofeffortintopopularizingConfucianismbyper- ofJesusChristandtheMuslims'reverencefortheirprophetMohammed suading peasants of the importance of the moral principles (Carus,1918,p.155). underpinning the Confucian values (Chang, 1955; Fairbank and The effective diffusion of Confucian values and norms can also Reischauer,1989;Wakeman,1975). begleanedfromthefactthattheoverridinggoalofsuppressingthe Confuciannormswerealsodiffusedthroughpubliclypraisinglocal TaipingRebellion(1850–1864)wasnotsomuchtoprotecttheManchu examplesoflaudablebehaviorandconduct.AnotableConfucianexem- regimeastoupholdConfucianismagainstadistortedinterpretationof plarwas“chastewomen”orlienv,whowerebasicallywidowswhohad Christianity—the Society of God Worshippers, or Bai Shangdi Hui vowednottoremarryor,attheextreme,evencommittedsuicideafter (FairbankandGoldman,1992).17Likewise,thepatrioticBoxersofthe theirhusbands'deaths,inordertodemonstratetheirunshakendeter- latenineteenthcenturywhoendedupkillingmanyWesternmissionar- minationtopreservefidelityandloyaltytotheir(deceased)husbands iesandChinesecommunicantsdidsotopreservetheConfucianvalues until death.14 Reflecting the Confucian ethics of subordination and (Spence,1990).18Lastbutnotleast,thatConfuciannormshadfirmly loyalty(whichserveasthefoundationofsubordinationtotheruler), established itself in the Chinese society was also borne out by the chastewomenwereheldinthehighestregardbytheimperialauthori- New Cultural Movement (1915–1921)—the Chinese “Renaissance” tiesandgreatlyhonoredintheirownlocalcommunitiesfromasearlyas thatoccurredshortlyafterthecollapseoftheQingdynasty,wherein theZhoudynasty(1046–256B.C.).DuringtheMingandQingdynasties, theConfucianculturewasthoroughlycondemnedasbeingthekey theimperialauthoritiespromotedthisvirtuetoanunprecedentedlevel. contributing factor to China's failure to develop the economy and Notonlywereasetofsophisticatedlawsestablishedforthesakeofcan- democracy(Schwartz,1983). onizingthechastewomen,butalsoritualsweredevelopedforhonoring Thecrux,forourpurpose,iswhetherthediffusionofConfucianethics them(Chow,1994;Mann,1997).Forexample,aftergettingnominated playedaroleinreducingsocialconflictsorspecificallypeasantrebellions. bythelocalgentry,candidatesweresubjectedtostrictscrutinybyvar- Anecdotalevidencesuggestsitdid.Forexample,theprevailingpopularex- iouslevelsofgovernmentauthoritiesbeforetheir“purity”wascertified pression“beapeacefuldog[ratherthan]arebel”clearlyopinedthatone andthecovetedhonorofachastewomanwaseventuallyconferredon shouldstrivetobecomea“courteousgentleman”ratherthana“martial thembythecourt.Afterreceivingthehonor,memorialarchwayswould knight”.EventhepeasantrebelarmyheadLiZicheng(1606–1645)and beconstructedintheirhometownstobroadcastthesevirtues. manyothersocialbandits,whowereforced(byadversecircumstances) Notunexpectedly,thenumberofchastewomenincreasedbyleaps intosuchroles,maintainedareverenceforConfucius,totheextentthat andboundsinlateimperialtimes.Indeed,historicalrecordsindicate theConfuciusfamilymansionandtemplesinthehometownofConfucius that,whenmeasuredonadecadalbasisonlyonechastewomanhad wereeffectivelysparedfromtheirplundering(Zeng,1876).19Wethusex- been identified in every one million of the population in the Yuan pectthatthediffusionofConfucianvaluesandnormsinChinahaveplayed dynasty(1271–1368),butthatnumberincreasedsharplyto13and16 asignificantlypositiveroleinreducingpeasantrebellions. duringtheMingandQingdynastiesrespectively.15Thissurgesuggests thegrowingimportancethattheimperialauthoritieshadplacedupon 3.Data theConfucianethicsandnormsasthelastChinesedynastyapproached itseventualdecline. 3.1.Thesample Aconfoundingfactoriseducationandinconnectiontoitsocial mobility.AlthoughConfucianclassicsandrotelearningwerealmostex- To examine the effect of Confucianism on peasant rebellions, clusivelytaughtinschools(Elman,2000;Weber,1922)andassuch we construct a panel dataset that covers the 107 counties of wouldverylikelybearuponthediffusionofConfucianism,thelatter's ShandongProvincethroughoutthe267yearsofChina'sQingdynasty effect may well have come through the channel of social mobility. (1644–1911).TherearegoodreasonsforchoosingShandongonthe Afterall,socialmobility,whichinthehistoricalChinesecontextmeant NorthChinaPlainforexaminingthepossibleeffectofConfucianism that those from a (“commoner”) background without an educated onpeasantrebellions(AppendixFig.A1).Foremostisthat,beingthe literatusorgentryscholarasfamilymemberwereabletostudyConfu- birthplaceofConfucius(QufuCountytobeprecise)andmanyother cianism,couldonlybeachievedviapassingtheimperialcivilservice greatConfuciansages,ShandongProvincewastheoriginoftheortho- examinations(Ho,1962;Rawski,1979).16Itisagainstthisreasoning doxConfucianculture.20Itssacrosanctimportancewasreinforcedin thatweprefertotreateducationandsocialmobilitynotasameasure lateimperial(Qing)timesassomeemperors,mostnotablyKangxi ofConfucianismbutratherashavinganindependenteffectonthe andQianlong,chosetoperformsacrificialceremoniesandbuiltmore dependentvariableofinterest. templesthere,andgrantedfeudalnobilitytodescendantsofthegreat Aftertwothousandyears,Confucianideologyhadarguablyperme- Confuciansageswhocontinuedtolivethere(Elliott,2009).Whilethe atedtheentiresocialstrataandestablisheditselfasthepredominant socialnormsamongtheChinesepopulace(FairbankandReischauer, 17 WiththemostprofounddemographicconsequencesinChinesehistory(thenumber 1989;Ho,1962;Yang,1961).Thismaybeevidenced,atleastinpart, ofcasualtieswasestimatedtorangebetween50(Perkins,1969)and73million(Cao, bythefactthateverytownshipinQingChinahadatemplebuiltto 2000)),theTaipingRebellionmayberegardedasa“holywar”wagedonConfucianism. honorandvenerateConfuciusandhisfollowers,tothedegreethat ItaroseoutofadisdainfuldenunciationofConfucianismandtheQingrule,andwassup- pressedbytwoarmygeneralswhowereConfucianscholars—ZengGuofanwasajinshiand ZuoZongtangwasajuren(FairbankandGoldman,1992). 14 Thedeedsofchastewomenwererecordedindetailinthelocalgazetteersduringthe 18 ChinawasforcedtoopenuptotheWestafteritsdefeatintheFirstOpiumWar MingandQingdynasties.AnexampleisJingShi,anativeofLichengCounty,Shandong (1839–1842)andthesigningofaseriesofso-called“unequaltreaties”,particularlythe Province,whowasconferredthehonorofachastewomanforherdeterminationtocon- TianjinTreatyof1860,whichresultedinamorethoroughpenetrationbytheforeigners. tinuelookingafterherparents-in-lawafterherhusbandpassedawaywhenshewasonly Agroupofspontaneouslyformed,patrioticanti-imperialistsin1900knownasthe 28(LichengGazetteer,1926). “Boxers”attackedtheforeignmissionariesandcommunicantsfortheallegedsuperiority 15 ThedataonchastewomenareobtainedfromtheGujintushujicheng(GreatCollection thelatterimposedupontheChinese,whichessentiallywasunderpinnedbyaclashof ofAncientandModernBooks)(1726)(Chen,1985). valuesbetweenConfucianismandChristianity(Esherick,1987). 16 ConfucianclassicsrefertotheFourBooksofGreatLearning,DoctrineoftheMean, 19 LiZichengwasafamouspeasantrebelleaderwhooverthrewtheMingdynasty. Analects,andMencius,andtheFiveClassicsofBookofChanges,ClassicofPoetry,Classicof 20 BothConfuciusandthemajorityofhisdisciplescamefromQufuCountyoritsnearby Rites,ClassicofHistory,andSpringandAutumnAnnals(seeNylan,2001fordetails).Stu- regions.Hisdisciples,manyofwhomsubsequentlybecamegreatConfuciansagesor dentsbegantheirstudiesasyoungchildrenbylearningbasicChinesecharactersand scholarsthemselves,continuedtospreadConfucius'doctrinesbackintheirhometowns memorizingthethousandsofcharacterscomposingtheConfucianclassics.Theythen orotherplacesnearQufu(Esherick,1987;Legge,1991).ThatwaswhyQufuwaspromot- wentontomasterandmemorizetheFourBooksandtheFiveClassics,andtopracticetheir edasthe“holyland”ofConfucianismbyvariousimperialauthoritiesfromtheHandynasty compositionskillsoftheeight-leggedessaysthatwererequiredintheexaminations. (206B.C.–A.D.220)onwards(Forsyth,1912). 136 J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 countyofQufuanditsneighboringregionsallowustoexaminethe dynasty.Indeed,Yang(1975)checkedtheaccuracyoftheentrieson effectofConfucianismonpeasantrebellions,therewereregionswithin peasantrebellionsbycomparingthoselistedintheQingShiluagainst theprovincethatweredistinctlyweakintheConfuciantradition.This thoseenumeratedin40countygazetteersofsixprovinces,andfound sharp contrast within Shandong Province thus provides us with a thattheQingShiludidadequatelycovervirtuallyallthereportedsocial suitablesettingforexaminingtheeffectofConfucianismonpeasant unrests(specifically thelocationandtimeofoccurrence).Fig.1(a) rebellions(moreonthisbelow). showsthestrikingcontrastinthenumberofpeasantrebellionsacross Second,historicallythewesternplainofShandongProvincewasfre- thecountieswithinShandongProvince.Forexample,whereasthose quentlystruckbynaturalcalamities.Whiledroughtswereacommon countiesinthesouthandsouthwesternregionswereheavilyafflicted, occurrence,theYellowRiver—thesecondlargestriverinChinathat theotherpartsoftheprovinceweredecidedlymorepeaceful. runs from western Shandong to the sea—occasionally breached its Beingarain-fedagrarianeconomy,Chinawassusceptibletoeco- levees to flood the western plain. By contrast, the eastern part of nomicshocks,whichoftentimesresultedincropfailure.Tomeasure Shandong(thepeninsula)enjoyedaplentifulsupplyofrainfallandwas suchshocks,weemployadummyvariabletoindicatewhetheracounty farawayfromthefloodingareasoftheYellowRiver.Bythemid-to-late hadexperiencedcropfailure.Inaddition,wealsolagthisvariableby nineteenthcenturytheYellowRiverhadshifteditscourserepeatedly oneyear,ascropsinnorthChinaaretypicallyharvestedinsummer (1852–1887),leadingtoaseriesoffloodsandconsequentlywidespread andautumn,hence,peasantrebellionsinducedbyharvestfailuresare crop failures. Even more unfortunate was that such mishaps were morelikelytooccurinthefollowingyear.AccordingtotheQingShilu, followedoncloseheelsbythegreatdroughtof1896–1897,resultingin thedocumentedcropfailureswereinvariablycausedbysuchnatural alarge-scalefamineinShandongandotherpartsofNorthChina. disastersasdroughts,waterloggedland,floods,locustplagues,and Accordingly,certainpocketsinwestShandongwerealsohometo earthquakes—inshortbyexogenousweathershocks.23Fig.1(b)shows thesocialbanditsandpopularunrestsinhistoricalChina(Esherick, thatcountiesinthewesternregionswerepronetocropfailure,but 1987).OneofthefourclassicChinesenovels,theWaterMargin(also theotherpartsoftheprovincewererelativelyimmunetoit. knownasOutlawsoftheMarsh),whichtellsataleofhowagroupof Forrobustness,we also employ theunusual levels of rainfall in 108 outlaws gathered at Mount Liang (or Liangshan Marsh) and droughtandwaterloggingepisodes(hereafter“extremerainfall”)as amassedasizablearmytoresistthegovernment,wassetinsouthwest alternativemeasuresofeconomicshocks.Therainfalldataareobtained Shandongintheearlytwelfthcentury(theSongdynasty).Bythelate fromZhongguojinwubainianhanlaofenbutuji(AtlasontheSpatial nineteenthandearlytwentiethcenturies,Westernmissionariessaw DistributionofDroughtandWaterloginChinafortheRecentFiveHundred southwesternShandongastheplacewherethe“classicEldoradoof Years),compliedbytheChinaMeteorologicalAdministration(1981). bandits”weregathered(Stenz,1897).21 Therainfalllevelisdifferentiatedonascaleof0to2,with0indicating Itisalsoworthmentioningthat,withalandareaapproximately20% normalweatherconditions,1indicatingslightdroughtorwaterlogging, largerthanthatofEngland,andwithmorethanahundredcounties and2indicatingseveredroughtorwaterlogging.24Butsinceinpeasant (107)havingsufficientvariationsinculture,weatherconditions,and societiesextremerainfallisnotasdirectameasureofincomeshockas peasantrebellions(seeSubsections3.2and3.3fordetails),Shandong cropfailure—nottomentionthatrainfalldataareavailableonlyatthe Provinceisuniquelysuitedforconductingastudyofthisnature.Focus- prefecture(ratherthancounty)level,wecontinuetousecropfailure ingonasingleprovinceenablesthisstudytoavoidtheunobservedhet- asourkeymeasureofeconomicshockandemployextremerainfallto erogeneitiesthattypicallyafflictotherstudiesinvolvingcross-country checkitsrobustness. comparisons. WechoosetheQingdynasty(1644–1911)tobeoursampleperiod because,aswehavepointedoutinSubsection2.3,Confucianismhad 3.3.MeasuresofConfuciannorms bythenbecomedeeplyingrainedintheChinesesocietyafterseveral millenniaofpromotionbysuccessiveemperors.Webeginouranalysis Ourmainchallengeliesinconstructingavalidmeasuretoproxyfor from1651onwardstoexcludethosesocialunrestscarriedoverfrom thestrengthofConfucianism.Unlikeotherreligions(suchasChristianity), theMingdynasty.Similarly,weendouranalysisin1910simplyto whosestrengthcanbemeasuredby,forinstance,theshareofcommuni- avoidthecomplicatedpoliticalcircumstancesthatcloudedthefinal cantsinapopulation(e.g.,BaiandKung,2014;BeckerandWoessmann, yearoftheQingdynasty(1911). 2009),Confucianismresemblesmoreofasetofsocialnorms,andthere- forelacksaclear-cutstandardwithwhichtoidentifythetruebelievers. 3.2.Measuresofpeasantrebellionsandeconomicshocks Aftercarefuldeliberations,wecameupwithsomereasonableproxies forthestrengthofConfuciannorms. The dependent variable, peasant rebellions, is measured by the OurfirstmeasureofConfuciannormsisthenumberofConfucian numberofuprisingsthatreportedlyoccurredinacountyonayearly templesthatacountyhadestablished.Ourchoiceispremisedonthe basis.Thedetailedrecordsontheplaceandtimeofeachpeasantrebel- reasoning that stronger Confucian norms would likely give rise to lionweremeticulouslycompiledbytheQingcourtintheQingShilu more Confucian temples being built, which would in turn deepen (Veritable Records of the Qing Emperors).22 According to Chinese thosenorms(Ho,1962).AccordingtotheQingcourt,Confuciantemples historians,theQingShiluisthemostcompleteandsystematicsource weredifferentiatedbasedonwhethertheywerespecificallyerectedfor oforiginalinformationonsocialunreststhatoccurredduringtheQing honoringConfucius(e.g.,wenmiao),forhonoringthenotableofficials andlocalvirtuousConfucians(e.g.,minghuanxiangxianci),orforhonor- 21 InhisbookTheOriginsoftheBoxerUprising,historianJosephEsherick(1987)finds ingthelocalloyalandfilialmen(e.g.,zhongxiaojieyici)(Yao,2000). thatConfucianism'slackofpopularityinsouthwesternShandong(especiallyCaozhou Prefecture)wasanimportantreasonbehindthedominanceofheterodoxsects,which orchestratedendemiccrime,banditry,andrevoltsintimesofeconomichardship. 23 TheQingShilucontainsthemostsystematicinformationoncropfailuresthatoccurred 22 TheQingShiluistheofficialrecordofimperialedictsandofficialmemorialsabout intheQingdynasty.Forexample,“TheeighthyearofTongzhiemperor(1869):Dueto eventsofnationalsignificance.Unfortunately,itcontainednosystematicinformationon waterlogging,drought,andlocustplagues,thecountiesofLicheng,Shouzhang,Fan, thesizeandcausesoftherebellions—theywerealluniformlyreferredtoas“feiluan” Dong-e,Jining,Zouping,Changshan,Qihe…ofShandongProvinceareexemptedfromtax- (banditunrests).Weprovidebelowtwoexamplesofrebellionsastheyweredocumented ationuntilfurthernotice.” intheQingShilu.Case1:“ThetwelfthyearofTongzhiemperor(1873):stationedinGuan 24 TheoriginalvaluesintheAtlasrangedfrom1to5,with1indicatingseveredrought,2 County,agroupofbanditsplunderedaround.CountymagistrateLiYuwasordered(bythe slight drought,3normalweatherconditions, 4slight waterlogging, and 5severe court)toleadthelocalconstablestosuppressthem…”Case2:“ThethirdyearofXianfeng waterlogging.Tocombinethetwomeasuresinthesamedirection,weconvert3(normal emperor(1852),March:thegrandcouncilorofstatewasinstructedtoquellthethousands weatherconditions)to0,2and4to1(slightdroughtorwaterlogging),and1and5to2 ofbanditsheadedbyHuangFuinWeishanLake,whoplunderedfrequently.” (severedroughtorwaterlogging). J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 137 (a) (b) (c) (d) Fig.1.Distributionof(a)numberofpeasantrebellions,(b)numberofcropfailures,(c)numberofConfuciantemples,and(d)numberofchastewomeninShandongProvinceduring theQingPeriod(bycounty).Notes:ThenumbersofpeasantrebellionsandcropfailuresarebasedontheQingShilu(VeritableRecordsoftheQingEmperors).ThenumbersofConfucian templesandchastewomenarebasedontheShandongTongzhi(ProvincialGazetteerofShandong),andarenormalizedbyacounty'slandarea(in1000km2). Our second measure is the number of chaste women officially thatculturesarelikelytoremainstableoveralongperiodoftime electedbytheQingcourt.Duetodatalimitations,wecanonlycover (e.g., Boyd and Richerson, 1985; Nunn and Wantchekon, 2011; theperiod1644–1890—abouttwodecadesbeforetheQingdynasty Putnam, 1993; Tabellini, 2010; Voigtlander and Voth, 2012). cametoanend.WeconsiderchastewomenavalidproxyforConfucian AppendixFig.A2,whichshowsthenumberofnewly-establishedCon- normsbecause,asdiscussedinSubsection2.3,thedeedsofthechaste fuciantemplesbythereignofemperor(andthecorrespondingdynas- women were considered an ultimate expression of the Confucian ty) from 206 B.C. to A.D. 1911, suggests that Confucianism had virtues pertaining to purity, loyalty, and subordination, and thus cumulativelydevelopedfromChina'slonghistoricalpastandmust representedacodeofconductthattheQinggovernmentwaseagerto have become firmly established as the orthodox religious-cum- promote.Moreover,unliketemples,itislesslikelyforchastewomen cultural ideology in China by the Qing dynasty (Fairbank and tobecorrelatedwitheconomicprosperity. Reischauer,1989).Toaccountforthepossibleeffectofcountysizeon Aswiththeotherimportantsocialandeconomicaffairsofthetime ourindependentvariables,wenormalizethemprimarilybylandarea theQinggovernmentkeptsystematicrecordsofthesetemplesand (per1000km2).26Toreduceskewnessinourtwomeasures,weexpress chaste women in the Shandong Tongzhi (Provincial Gazetteer of themintermsofnaturallogarithm.PanelscanddofFig.1,whichre- Shandong),acompendiumcompiledsincethe1890sandpublishedin spectivelyshowthenumbersofConfuciantemplesandchastewomen 1934.Morethan96%oftheConfuciantempleshadalreadybeenbuilt (per1000km2)atthecountylevelinShandongProvince,indeedreveal beforetheQingdynasty(AppendixFig.A2).25Informationisavailable apositiverelationshipamongthetwomeasures(atthe1%levelofsig- on when a temple was constructed (specifically by reign of the nificanceandwithacoefficientgreaterthan0.54).Moreover,thegeo- emperor-cum-dynasty)forabout58%ofthosetemples.Asforchaste graphicdistributionofeachofthesemeasuresapparentlysupports women,theShandongTongzhidoesnotprovidespecificinformation theideathatConfuciannormsweredistinctlystrongerinthe“holy regardingwhentheywereconferred;itonlyliststhetotalnumberof land”ofConfucianism.Forinstance,Fig.1canddshowsthatthere chastewomenbetween1644and1890. were indeed more temples and chaste women in the Confucian Since the Shandong Tongzhi does not provide temporal “Mecca”ofQufuanditssurroundingcounties,aswellasinthenorth- variations in the numbers of Confucian temples and chaste westernpartoftheprovince,thanelsewhereintheprovince. women,wearetreatingthestrengthofConfuciannormsduringthe OneyardstickbywhichtoascertainwhetherConfuciantemplesand Qingdynastyastime-invariant.Thisisalsoconsistentwiththefact chastewomenaresoundproxiesforConfuciancultureistoexaminethe extenttowhichtheymaybecorrelatedwithConfuciancultureorthe 25 ItispossiblethattheShandongTongzhimayhaveexcludedthosetemplesthathad beendestroyedinuprisings,yetitremainsthemostreliablesourceforthenumberoftem- 26 SincesystematicpopulationdataareunavailableatthecountylevelduringtheQing plesthatexistedintheQingdynasty. dynasty,werelyonthenormalizationusingacounty'slandarea. 138 J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 Table1 Sourcesanddescriptivestatisticsofthevariables. Variable Source Levelofvariation Mean S.D. Min. Max. Peasantrebellions QingShilu(VeritableRecordsoftheQingEmperors) County-year 0.03 0.20 0 7 Cropfailure QingShilu(VeritableRecordsoftheQingEmperors) County-year 0.28 0.45 0 1 Drought ChinaMeteorologicalAdministration(1981) Prefecture-year 0.38 0.66 0 2 Waterlog ChinaMeteorologicalAdministration(1981) Prefecture-year 0.52 0.72 0 2 Temples ShandongTongzhi(ProvincialGazetteersofShandong) County 12.73 4.72 7 39 Chastewomen ShandongTongzhi(ProvincialGazetteersofShandong) County 1224.66 1142.03 116 6622 Landsuitability FAO(2012) County 37.81 9.85 20.94 59.67 Urbanization1770s Cao(2000) County 0.27 0.73 0 4 Schools ShandongTongzhi(ProvincialGazetteersofShandong) County 2.59 1.49 1 8 Shengyuan ShandongTongzhi(ProvincialGazetteersofShandong) County 34.6 15.97 16 80 Imperialsoldiers ShandongTongzhi(ProvincialGazetteersofShandong) County-year 284.57 716.43 0 6780 Granary(in10,000shi) ShandongTongzhi(ProvincialGazetteersofShandong) County 2.21 2.87 0 19.86 Landtax(insilverliangpermu) ShandongTongzhi(ProvincialGazetteersofShandong) County 0.04 0.02 0.002 0.09 Prefectureseat ShandongTongzhi(ProvincialGazetteersofShandong) County 0.12 0.33 0 1 Treatyports(years) Yan(1955) County-year 0.05 1.19 0 48 Missionarypresence(years) Stauffer(1922) County-year 0.99 4.61 0 51 TaoistandBuddhisttemples ShandongTongzhi(ProvincialGazetteersofShandong) County 5.16 2.84 1 21 Terrainruggedness Jarvisetal.(2008) County 0.35 0.34 0.04 2.02 Sages ShandongTongzhi(ProvincialGazetteersofShandong) County 3.28 4.72 0 23 Notes:Refertothetextforvariablesdefinition. localfolkcustomssuchas“respectingConfucianism”(zunru),“observ- Details on the descriptive statistics of peasant rebellions, crop ingpropriety”(lirang),“observingintegrity”(mingjieorzhengqi),and failures,andConfucianismareprovidedinTable1. “observingloyalty”(zhongyiorshoufa)thatprevailedintheQingdynas- ty.27AseachcountywasevaluatedindependentlybytheTongzhiasto whethertheyexhibitedanyoftheabovecharacteristics,itallowsusto 3.4.Descriptiveevidence converteachoftheabovedimensionsoflocalcultureintoadummyvar- iable—with1indicatingthatacountyhasexhibitedsuchfolkcustoms, Fig.2showsthecloseassociationbetweenthenumberofpeasantre- and0otherwise.Moreover,byaggregatingthefourdummyvariables bellionsandthenumberofcropfailuresinShandongProvincefrom intoasingleindex,weareabletoconstructanoverallindexofConfu- 1651to1910onadecadalbasis.Wheretherewerefewcropfailures, ciancustomsonascaleof0to4—with4indicatingthestrongestConfu- aswasthecasebefore1800,therewerecorrespondinglyfewrebellions. ciancustoms.28WefindthatthenumbersofbothConfuciantemples But as the number of crop failures climbed rapidly after 1800 and andchastewomenaresignificantlyandpositivelycorrelatedwiththe peakedin1850–1870s,sotoodidthenumberofpeasantrebellions. variousmeasuresoflocalConfuciancultureasidentifiedintheTongzhi The trend that crop failures and accordingly peasant rebellions (AppendixTableA1),lendingfurtherconfidencetothevalidityofour before1800werefewerthanafter1800raisesaconcernaboutdata measuresofConfucianculture. reliability.Fortunately,thereismountingevidencefromclimatologists Additionally,contemporarysurveyevidencefurthersupportsthe tosuggestthatthegrowingincidenceofcropfailuresafter1800was claimthatchastewomenareareliablemeasureofConfuciannorms. largelyduetoharvestfailurescausedbyacolderclimate;theresult Conductedin28Chineseprovincesin2005,theChinaGeneralSocial wasaspikeinwarsandrebellions.30Concernaboutdatareliability Survey (CGSS) finds that, in spite of the fact that women in rural shouldalsobeamelioratedbythefactthattheQinggovernmenthad, Chinaweregiventhesamerightsasmentovotefortheirrepresenta- sincetheseventeenthcentury,systematicallycollecteddataonrainfall tives,systematicallyfewerofthemvotedinvillageswithstrongclan atthecountylevel(Wilkinson,1969). organization.29 Although this finding concerns specifically political Fig.3showsthedecadaldifferenceinthenumberofpeasantrebel- participation,itcarriesthestrongimplicationthattheConfucianvalues lionsamongcountiesinwhichConfucianismhaddiffusedtovarying ofsubjugatingwomentomenhavemostlikelypersistedtothisday. degrees.Forsimplicity,weclassifythosecountieswiththenumberof Confuciantemplesper1000km2above(below)themedianof11.89 ashavingstrong(weak)Confuciannorms.Wefindthat,whencrop 27 Thesecustomswereexplicitlylistedinthe“fengsu(customs)”volume(orjuan)ofthe failureoccurs,therearefewerpeasantrebellionsincountieswithstrong ShandongTongzhi.ComparedtoourtwoproxiesofConfucianismthesemeasuresaread- ConfuciannormsthanincountieswithweakConfuciannorms.Onaver- mittedlycruder,andtheyreliedonthesubjectiveinterpretationoftheeditorsofthe Tongzhiregardingwhetherornottheypossessedanyofthefourcharacteristicsin age,thenumberofpeasantrebellions(percountyperyear)is0.044in question. the former instance and 0.07 in the latter. When evaluated at the 28 TakeJiyangCountyofJinanPrefectureforexample.Forthiscounty,“observinginteg- meanof0.055,thisdifferenceaccountsfor47%oftheaveragenumber rity”and“observingloyalty”werementioned,soweassignthevalueof1tothesetwofolk ofpeasantrebellions(percountyperyear)intimesofcropfailure. customsaccordingly.Conversely,theothertwoaspects—“respectingConfucianism”and “observingpropriety”—werenotmentioned,soweassignavalueof0tothem(referto Together,Figs.2and3provideintuitivesupporttothehypothesesre- theShandongTongzhi,volume40,p.1500,fordetails).Accordingly,theoverallindexof gardingtherolecropfailureplayedintriggeringpeasantrebellions ConfuciancustomsforJiyangCountyis2. andspecificallythemitigatingeffectsofConfucianism,ofwhichwe 29 PrevailingsincetheSongdynasty(A.D.960–1279),clansarelineagegroupsthatput willexamineinSection4. strongemphasisonConfucianmoralobligations—especiallyfilialpiety,loyaltyand subordination—amongthekin.Withintheclans,theprevailingethosisforwomentosub- jugatetotheirhusbands(Weber,1922).Covering410villagesand3991ruralresidents, theCGSSof2005directlyaskedthevillagerswhethertherewasanancestralhallorclan- nishactivitiesorganizedonthebasisof(same)surnamesintheirvillages.Accordingtothe 30 Byrelyingonevidencefromawiderangeofstudiesincludingthoseontreerings, surveyresults,invillageswithdistinctclannishpresence,only19%ofthewomenvotedin corals,ice-cores,boreholesandhistoricaldocuments,Zhangetal.(2006)findthatChina themostrecentvillageelections,comparedto30%inthecaseofmen.Thenegativeeffect inadvertentlyexperiencedanunusuallycoldphaseduring1806–1912,withtheaverage ofclansonwomen'sbutnotmen'svotingbehaviorisconfirmedbyregressionanalysis temperature(of−0.456°C)being10.4%lowerthannormal(e.g.,in1718–1805,theaver- thatcontrolsforasetofindividualandvillagecharacteristics(notreported). agetemperaturewas−0.413°C). J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 139 800 Number of peasant rebellions 700 Number of crop failures 600 500 400 300 200 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Fig.2.NumberofpeasantrebellionsandcropfailuresinShandongProvince(bydecade). 4.Empiricalresults significancereinforcesourintuitionthatinanagrariansocietyextreme rainfallisnotasdirectameasureofincomeshockascropfailure. 4.1.Theeffectofeconomicshocksonpeasantrebellions 4.2.TheeffectofConfuciannormsonpeasantrebellions BeforeexaminingtheeffectofConfuciannormsonpeasantrebel- lions,wefirstexaminewhethereconomicshockswereindeedaprimary NowweturntoexaminewhetherConfuciannormsareabletomit- sourceofpeasantrebellionsusingthefollowingOLSspecification: igatetheeffectofcropfailureonpeasantrebellions.Weemploythe specificationinEq.(2): Rebellionit¼β1shockit−1þcountyiþyeartþεit ð1Þ Rebellionit¼β2shockit−1þβ3shockit−1(cid:2)Confucianismiþcountyi þyear þε ð2Þ t it whereRebellion denotesthenumberofpeasantrebellionsincountyiin it yeart,shockit−1denotesthevariationsineconomicshocksasmeasured whereConfucianismidenotesthetime-invariantstrengthoftheConfu- bythecropfailuredummyinthepreviousyear,countyireferstocounty ciannormsasmeasuredbyConfuciantemplesandchastewomen.The fixed-effectsthatcapturethetime-invariantandcounty-specificfactors, interactionterm,shockit−1×Confucianismi,isourkeyvariableofinter- whereasyeartindicatesyearfixed-effects,whichcapturethecommon estandisincludedtoestimatethepossibleeffectofConfuciannorms. trendfacedbyallthecounties.31εitistheerrorterm. Specifically,weexpecttheeffectofeconomicshockstobesmallerin WereporttheOLSestimateofthelaggedcropfailurevariableincol- countieswithastrongerdiffusionofConfuciannorms.Shouldthatbe umns1and2ofTable2.Toprovideabaseline,wedonotincludethe thecase,thesignofthecoefficientβ shouldbesignificantlynegative. 3 county-andyearfixed-effectsinitially(column1).Tocontrolforserial BeforeexaminingthepossiblemitigatingeffectofConfucianism,we correlationweclusterthestandarderrorsatthecountylevel.Theresult firstexaminewhetherornotConfucianismhasanydirecteffectonpeas- showsthateconomicshockshaveasignificantandpositiveeffecton antrebellions.SincethevariablesofConfucianismdonotvarywithtime, peasantrebellionsacrossalltheestimations.Intermsofmagnitude, wearerestrictedtoemployingtherandom-effectregressions.Theperti- thecoefficientincolumn2indicatesthatthenumberofpeasantrebel- nentresults,reportedincolumns1–4ofAppendixTableA2,confirmthe lions is about 0.00973 higher in counties with crop failure than in significanteffectofConfucianisminreducingpeasantrebellions.To countieswithoutcropfailure.Evaluatedatthemean(0.03),thisdiffer- checktheirrobustness,weconvertthepaneldataintocross-sectional enceaccountsforone-thirdoftheaveragenumberofpeasantrebellions. dataandruntheregressionsagain.Reportedincolumns5–8,theresults Incolumn3weexaminewhethercontemporaneouscropfailure(crop reaffirmtheearlierfindings. failuret)andcropfailurelaggedbytwoyears(i.e.,cropfailuret−2) InTable3,weexaminewhetherConfuciannormsareabletomitigate alsobearonpeasantrebellions.Theresultsshowthattheyhavenosig- theeffectofcropfailureonpeasantrebellionsbasedonthespecification nificanteffect;onlycropfailureinthepreviousyear(cropfailuret−1) ofEq.(2).Columns1and2ofTable3reporttheOLSestimatesofthe does.Thisreinforcesourconfidenceinusinglaggedcropfailureasthe numberofConfuciantemplesnormalizedbycountyarea(in1000km2) pertinentmeasureofeconomicshocks. and expressed in terms of natural logarithm, i.e., ln(temples/area), Tochecktherobustnessofourresultsweemployextremerainfall whereascolumns3and4reporttheestimatesusingthenumberof (drought and waterlogging) as alternative measures in column 4 chastewomenasthepertinentmeasure.32Acrossallregressionsthe of Table 2. Consistent with the historical observation that peasant countyandyearfixed-effectsarefullycontrolledfor.Giventhatouranal- rebellionsinShandongProvinceweretriggeredmainlybydroughts ysisspansalengthyperiodofmorethan260years,somecounty-specific (Esherick,1987),weindeedfindthatonlydroughtbutnotwaterlogging factorsmayimpactdifferentiallyonpeasantrebellionsovertime.Toad- has a significantly positive effect on peasant rebellions. The fact dressthisconcernwethuscontrolalsoforthecounty-specificlineartime that crop failure has both a larger coefficient and a higher level of 32 TocheckrobustnesswealsoemploythesheernumberofConfuciantemplesand 31 Anotableexampleofthiscommontrendischangingstatecapacityovertime,which chastewomen—similarlynormalizedbylandsize,andthesheernumberofConfucian historicallywasstrongeratthebeginning(andinthemiddle)ofadynastybutdeclined templesandchastewomen.Theresultsaresimilar(hencenotreportedbutareavailable towardtheend(Goldstone,1991;Sng,2014). uponrequest). 140 J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 0.45 Coun(cid:2)eswithstrongConfuciannorms 0.4 Coun(cid:2)eswithweakConfuciannorms 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Fig.3.Numberofpeasantrebellionsincountieswithcropfailure(bydecade):weakandstrongConfuciannormscompared.Notes:Weenumerateonlypeasantrebellionsonadecadal basisincountieswithreportedcropfailure.ForsimplicityweclassifycountieswiththenumberofConfuciantemplesper1000km2above(below)themedianof11.89asbeingstrongly (weakly)steepedinConfuciantraditions.Theaveragenumberofpeasantrebellions(percountyperyear)is0.044incountieswithstrongConfuciannormsand0.07incountieswithweak Confuciannorms. trendsbyinteractingthecountydummieswithalineartimetrendin andConditionalLogitestimations—thelatterbyconvertingthedepen- columns2and4. dentvariableintoadummy,with1indicatingtheoccurrenceofpeasant Theresultsshowthat,whiletheeffectofcropfailureissignificant rebellions,and0otherwise.36Finally,toaddresstheconcernthatcrop andpositive,itsinteractingeffectwithConfuciantempleshasasignifi- failuresmayhavebeeninconsistentlyrecordedovertime(especially cantandnegativeimpactonpeasantrebellionsacrossestimations.33The before1800),wedropthatpartofourdataandruntheregressions magnitudeoftheeffectofConfuciantemplesonpeasantrebellionsisfar againusingonlytheshorterwindowof1800–1910.Theresultsofthe fromtrivial.Forinstance,a10%increaseinthenumberoftemplesper Tobit,ConditionalLogit,andrestrictedsample(1800–1910)estimations 1000km2hastheeffectofreducingthenumberofpeasantrebellions areallconsistentwiththoseoftheOLSestimatesinvolvingthefullsam- triggeredbycropfailureby3.8%.34Theresultsofusingchastewomen ple(1651–1910),andhencearenotreportedseparately(butareavail- insteadofConfuciantemplestoproxyforConfuciannormsarestriking- ableuponrequest). lysimilar:whiletheeffectofcropfailureissignificantlypositive,its interactingeffectwithchastewomenhasasignificantandnegative impactonpeasantrebellionsacrossestimations. 5.Omittedvariablebiasandadditionalcontrols Inadditiontoclusteringtherobuststandarderrorsatthecounty level,wealsotryseveralotherwaysofclusteringandreporttheresults Inexaminingtherelationshipbetweencultureandconflict,aformi- incolumns1and2ofAppendixTableA3.Forinstance,toallaythecon- dabletaskistodisentangletheeffectsofculturefromthoseofothervar- cernaboutspatialcorrelationpossiblycausedbytheeasewithwhich iables, most notably institutional environment and its attendant peasantrebellionscanspreadfromonecountytoanother,weemploy socioeconomicconditions(FismanandMiguel,2007;Miguel,Saiegh theConleystandarderrorsadjustedfortwo-dimensionalspatialauto- andSatyanath,2011).ThisisespeciallythecaseintheChinesecontext correlation (Conley,1999,2008).35Moreover,in ordertoallowfor becauseConfucianism,asstateorthodoxy,wasmorethanjustaculture timevariations(whileallayingtheconcernaboutspatialcorrelations asithadlongbeenpromotedandembeddedinstateinstitutionsand within the same prefecture), we cluster the standard errors (two- theeducationsystem,affectingbothgovernanceandsocialmobility way) at both the county and year ×prefecture level. Last, but not (seebelow),nottomentionitspossible(morally)constrainingeffects least,toruleouttheunlikely(thoughnotimpossible)eventthatall amongthepopulace.Againstthisbackground,onemightwonderif countieswithinShandongProvincemaybespatiallycorrelated,we theeffectofConfuciannormscameinsteadfromotheromittedfactors cluster the two-way standard errors at the county and year level. correlatedwithbothConfuciannormsandpeasantrebellions.Toad- While doing so gives rise to a larger standard error, the effect of dressthisconcern,weaddavectorofcontrolsbasedonthepertinent Confuciannormsremainssignificantintheseestimations. literatureandthespecifichistoricalcontextofChina.Also,inorderto Giventhatpeasantrebellionwasarareoccurrence,ourdependent allowthesecontrolstodifferentially affecttheimpactofeconomic variableintheOLSestimationcontainsalargefraction(97.8%)ofzero shocksonpeasantrebellions,weinteracteachofthemwithcropfailure. values.Toreducethe“over-zero”problem,weemployboththeTobit Detailsonthesourceanddescriptivestatisticsofthecontrolvariables areprovidedinTable1. 33 Anexceptioniscolumn1. 34 Thecalculationisbasedoncolumn2ofTable3:[(0.1×0.00872)/0.02313]×100=3.8. 35 WeuseHsiang's(2010)StatacodestocalculatethepanelversionofConleystandard errors.TheConleystandarderrorsareconstructedassumingawindowwithweightsequal 36 Whenthenumberofpeasantrebellionsis0(or1)forallobservationsforacounty(or to1forobservationslessthan100kmapartand0forobservationsfurtherapart.Given ayear),thiscounty(oryear)'scontributiontothelog-likelihoodiszero,andhenceis thatthemeanofcountylandareais1451km2,using100kmasthecutoffpointcovers droppedautomaticallyintheLogitestimation.Doingsoremovesatotalof18,443obser- anaverageofapproximatelyonecontiguous(bordered)counties.Wealsotryvariousoth- vations(allwithzerovalues).Moreover,theConditionalLogitestimationallowsusto ercutoffpoints(e.g.,200ormorekilometers)andobtainsimilarresults(notreported). minimizetheproblemcausedbyoutliers(somecounties,forinstance,hadupto6or7re- Wethankananonymousreviewerforthissuggestion. bellionsayear). J.K.Kung,C.Ma/JournalofDevelopmentEconomics111(2014)132–149 141 Table2 refertoAppendixTableA5).39Theregressionresultsaftercontrolling Economicshocksandpeasantrebellions. forthevariousmeasuresofeconomicprosperityarereportedincol- Dependentvariableisnumberofpeasantrebellions umns1and2ofTable4.ThemitigatingeffectofbothConfuciantemples andchastewomenonpeasantrebellionsremainssignificant. (1) (2) (3) (4) Cropfailuret −0.00054 5.2.Educationandsocialmobility (0.00462) ⁎⁎⁎ ⁎⁎ ⁎⁎⁎ Cropfailuret−1 0.04541 0.00973 0.00979 (0.00570) (0.00395) (0.00358) AsConfucianclassicsmadeupthecoreoftheschoolcurriculum,our Cropfailuret−2 0.00022 measuresofConfucianismlikelycapturealsotheeffectofeducationon (0.00452) peasantrebellions.Todisentanglethesetwoeffects,wecontrolforthe ⁎ Droughtt−1 0.00697 numberofschools(innaturallogarithm)ineachcounty.Therewere (0.00355) Waterlogt−1 −0.00190 primarilytwokindsofschoolsatthecountylevel.Theofficialschools, (0.00178) fuxueandxianxue,werefinancedandadministeredbytheprefectural Yearfixed-effects No Yes Yes Yes andcountygovernments,whereastheacademies,shuyuan,wererun Countyfixed-effects No Yes Yes Yes bythelocalliteratiandgentry.40TheShandongTongzhilistsallthe R-squared 0.01 0.18 0.18 0.18 schoolsthatexistedintheQingperiodbycounty.Sinceitdoesnotpro- Numberofobservations 27,713 27,713 27,606 27,713 videanytemporalvariations,wehavetotreatthisvariableastime- Notes:OLSresults.Robuststandarderrorsclusteredatthecountylevelarereportedin invariant. parentheses. ⁎ Significantat10%. Itisalsonecessarytocontrolforsocialmobilityasitislikelycorrelat- ⁎⁎ Significantat5%. edwithbothConfucianismandpeasantrebellions.Forinstance,we ⁎⁎⁎ Significantat1%. knowthatsocialmobilityinQingChinawasintimatelytiedtoConfu- cianism,giventhattheimperialexaminationdrewheavilyonthemem- orizationoftheConfucianclassicsandrotelearning(Elman,2000;Ho, 5.1.Economicprosperity 1962).Likewise,socialmobility(orratherthelackthereof)isalsolikely apartialcorrelateofsocialconflict.Forexample,inareasofhigh(low) Economicprosperityisapossibleomissionthatmaybecorrelated socialmobilitypeoplewerelikelymore(less)willingtoinvestincivil withbothConfuciancultureandpeasantrebellions.Ontheonehand, examinationthantoengageinunlawfulbehavior.41Giventhepossible the economically prosperous counties were in a better position to intricate relationships between social mobility, Confucianism and alleviatetheincomeshocksassociatedwithcropfailure;ontheother peasantrebellions,wecontrolforsocialmobilityusingthenumberof hand, they were better able to promote the Confucian culture by shengyuandegreeholderswhopassedtheimperialexamsatthesub- erectingmoreConfuciantemples. provincial—prefecturalandcounty—levels.42 GiventhatQingChinawaspredominantlyanagrariansociety(with Theshengyuandegreewasarguablythefirstandalsomostimpor- northChina,withoutirrigation,beingprimarilyarain-fedeconomy), tantstepbywhichcommonerscouldachieveupwardsocialmobility, economicprosperitymustbeintimatelytiedtoagriculturaloutput. asitqualifiedthemtositforupperlevelexamsandattainthehigherde- Unfortunatelysuchdataarenotavailable.Toproxyforthiseffect,we greesofjurenandjinshi,whichinthosedaysrepresentedapassportfor controlforthesuitabilityofacounty'slandforplantingtheregion's appointment in the government. Even without these subsequent maincrops(wheat,maize,broomcorn,millet,andpotatoes),whichis achievements,theshengyuanscholarsautomaticallyacquiredthesocial measured in terms of climate, soil, and slope characteristics [FAO, statusofalocalgentryandearnedtheprivilegesofhavingcor'veelabor 2012GlobalAgro-EcologicalZones(GAEZ)database].TheGAEZdata- andcorporalpunishmentwaived(Chang,1955).Foreachcountythe baseprovidesanindexthatrangesfrom0(veryunsuitable)to100 stateallocatedafixedquotaofshengyuan,which,saveforthepost- (very suitable) for all the major staple crops grown in Shandong TaipingRebellionperiodhadremainedbasicallystablethroughoutthe ProvinceduringtheQingdynastyasoutlinedabove.Bymatchingthe Qingdynasty(Chang,1955).43ObtainedfromtheShandongTongzhi, landsuitability mapwiththemapof thecounty-boundaryof Qing wethustreatshengyuanastime-invariant,anduseitsnumberbefore Shandong,wetaketheaverageoftheindicesofeachofthesixmajor the Taiping rebellion (1850) as the pertinent measure.44 The staplecropsoutlinedabovetobeourmeasureoflandsuitabilityfor regressionresultsaftercontrollingforschoolsandsocialmobilityare thesecrops.Whilethismeasureisnotthesameasactualagricultural reportedincolumns3and4ofTable4.Theeffectofthetwomeasures output, it is a reasonableproxy, considering thatland suitability is ofConfuciannormsremainssignificant. positivelycorrelatedwiththeactualoutputofthesesamecropsinthe 1930s(atthe5%levelofsignificanceandwithacoefficientgreater 39 Forrobustnesswealsocontrolforpopulationdensityin1776asanadditionalmea- than0.23,seeAppendixTableA5).37 sureofeconomicprosperity,althoughsystematicdataonChina'spopulationareavailable onlyattheprefecturelevel(anadministrativeunitbetweentheprovinceandthecounty Toensurethatourmeasureofeconomicprosperityisrobust,wealso inQingChina)(Cao,2000).Theresultsaresimilarandhencenotreportedseparately controlforthevaryingdegreesofurbanizationacrossthecountiesin (butareavailableuponrequest). Shandong.Drawingonthepopulationrecordsofprefecturalandcounty 40 Inafewcountiesthelocalliteratiandgentryalsoranthecommunityschoolsshexue gazetteers,Cao(2000)providesestimatesofthelevelofurbanization andyixue,butthereweresofewofthemthatwedonotenumeratethemaspartofour forallthecountiesofShandongProvinceinthe1770s.38Theestimates schoolmeasure. 41 Esherick(1987)alsofindsthatthelowersocialmobilityrateinsouthwestern arecloselycorrelatedwithStauffer's(1922)moreaccuratesurveyed ShandongduringtheQingperiodwasapotentialsourceofpopularunrests. dataontheshareofurbanpopulationinthesamesetsofcountiesin 42 Thecivilserviceexaminationismadeupofthreelevelsofdegrees.Thelowestlevel, 1920s(atthe1%levelofsignificanceandwithacoefficientof0.65, theshengyuan(analogoustoabachelor'sdegree),wastakenatthecountyandprefecture levels.Thenextlevelup,thejuren(equivalenttoamaster'sdegree),wastakenatthepro- vinciallevel.Thehighestdegree,thejinshi(equivalenttoadoctoraldegree),wastakenat 37 Dataonagriculturaloutputinthe1930sareobtainedfromZhongguoShiyezhi themetropolitan(palace)level(Chang,1955;Ho,1962). (GazetteerofChinaIndustries),compiledbytheMinistryofEconomicAffairs(1933), 43 Asanincentive,theQingauthoritiesallocatedadditionalquotasasarewardtothose RepublicofChina. provinces(andbelow)thatprovidedfinancialand/ormilitarysupporttosuppressthe 38 Cao'sclassificationsarebasedonacounty'spopulation.Smalltownswerethosewith TaipingRebellion. only2000inhabitants,ordinarycountiesormid-sizedtownswerethosewith5000, 44 Theresultsarerobusttoothermeasuresofsocialmobility.Forexample,socialmobil- countieswith12,000areconsideredlarge,whereasthosewith25,000werelargemunic- ityisalsomeasuredbydividingthenumberofshengyuanintothepre-and-postTaiping ipalities,andthosewith50,000orabovewereprovince-levelmunicipalities-cum- period,andbynormalizingthenumberofshengyuanbycountyarea,etc.Theresultsare commercialcities(Cao,2000,p.732). similarandhencenotreportedseparately.