2024年4月22日发(作者：win7怎么用u盘装系统)
JournalofEconomicGeography1(2001)pp.255±276
Scaleeconomiesandthegeographicconcentration
ofindustry
*
Abstract
Inrecentempiricalliteratureonspatialagglomeration,manypapersfindevi-
willingnesstoacceptevidenceofagglomerationeconomiesdependsonhow
ssuesareparticu-
larlytroublesomeforidentifyingagglomerationeffects:unobservedregional
characteristics,simultaneityinregionaldata,andmultiplesourcesofexternal-
iricalresultsappeartoberobusttoproblemscreatedbythefirst
twoissues:(a)individualwagesareincreasinginthepresenceofmore-
educatedworkersinthelocallaborforce,whichisconsistentwithlocalized
human-capitalexternalities,and(b)long-runindustrygrowthishigherinloca-
tionswithawiderrangeofindustrialactivities,whichsuggeststhatfirms
videnceissup-
portiveofagglomerationeffectsrelatedtoregionaldemandlinkagesandshort-
run,industry-specificexternalities.
Keywords:spatialagglomeration,increasingreturnstoscale,economicgeography
JELclassi®cations:R1,R3
uction
Duringthelastdecadeorso,rban
andregionaleconomicshavebeenandcontinuetobevibrantareasofresearch,other
®eldswithineconomicshaveincreasedtheiruseofregionaleconomiesaslaboratoriesin
whichtoexaminedi
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