2Loayza N, Schmidt-Hebbel K, Serven L. What drives private saving across the world? Review of Eco-nomics and Statistics, 2000.
3Horioka C Y, Wan J. The determinants of household saving in China: a dynamic panel analysis of provincial data. Journal of Money, Credit and Banking, 2007.
4Borgatti,S. P. and Foster,P. C. The Network Paradigm in Organizational Research: A Review and Ty-pology. Journal of Management,2003.
5Storper M. The regional world: territorial devel-opment in a global economy. Guilford Press, 1997.
6Glaeser,E. L. Learning in cities. Journal of Ur-ban Economics, 1999.
7Pan W, Ghoshal G, Krumme C, et al. Urban characteristics attributable to density-driven tie formation. Nature communications, 2013.
8Hall,R.E.Stochastic Implications of the Life Cy- cle-permanent Income Hypothesis: Theory and Evidence. Journal of Political Economy, 1978.