7Au, C.C. ,and J.V. Henderson, 2006, "Are Chinese Cities Too Small", Review of Economic Studies, Vol. 37, No. 3, 549-576.
8Black, D. ,and J. V. Henderson, 1999, "A Theory of Urban Growth", Journal of Political Economy, Vol. 107, 252-284.
9Duranton, G. , and D. Puga, 2004, "Micro-Foundations of Urban Agglomeration Economies", in J. V. Henderson and J. -F. Thisse (eds.) Handbook of Regional and Urban Economics, North-Holland, Amsterdam.
10Gleaser,E. L. , J. Kolko, and A. Saiz, 2001, "Consumer City", Journal of Economic Geography, PP27-50.
