1

文献名：The location of sales offices and the attraction of cities

作者：Thomas J. Holmes

期刊：Journal of Political Economy, 2005, vol. 113, issue 3, pages 551-581

电子链接：http://www.journals.uchicago.edu/toc/jpe/2005/113/3

2

文献名：Information, agglomeration, and the headquarters of U.S. exporters

作者：Mary E. Lovely, Stuart S. Rosenthal and Shalini Sharma

期刊：Regional Science and Urban Economics, 2005, vol. 35, issue 2, pages 167-191

电子链接：http://www.sciencedirect.com/science/article/B6V89-4BY3SYW-1/2/7ab11a16c633cb3d6e429b2cf47365e4

3

文献名：Product variety, marshallian externalities, and city sizes

作者：Hesham Abdel-Rahman 1 Masahisa Fujita

期刊：Journal of Regional Science,2006,Volume 30 Issue 2, Pages 165 - 183

电子链接：http://www3.interscience.wiley.com/journal/119997502/abstract?CRETRY=1&SRETRY=0