【作者(必填)】John S. Felkner and Robert M. Townsend
【文题(必填)】The Geographic Concentration of Enterprise in Developing Countries
【年份(必填)】
Quarterly Journal of Economics (2011) 126(4): 2005-2061
【全文链接或数据库名称(选填)】
http://qje.oxfordjournals.org/content/126/4/2005.full.pdf+html