【作者(必填)】Robert W. Helsley and William C. Strange

【文题(必填)】Coagglomeration, Clusters, and the Scale and Composition of Cities

【年份(必填)】Journal of Political Economy Vol. 122, No. 5 (October 2014), pp. 1064-1093

【全文链接或数据库名称(选填)】http://www.jstor.org/discover/10.1086/676557?uid=14031912&uid=3737800&uid=2134&uid=5909608&uid=2&uid=70&uid=3&uid=67&uid=62&uid=33517&sid=21105032859423