1David Schartzman,Joan Bodoff,Concentration In Regional And Local Industries[M].Southern Economics Journal,Jan,1971
2Mark Penno,Beverly R.Walther.The Concentration of Local Markets:A Study of Accounting,Advertising and Law[J].American Accounting Association,June,1996,10(2)
3Brulhart,M.Evolving geographical concentration of European manufacturing industries[M].Weltwirtschaftliches Archiv,2001:215～243
4Erik Heitfield,Robin A.Prager.The Geographic Scope of Retail Deposit Markets[J].Journal of Financial Services Research,2002,25(3):37～55
