Abstract: This paper builds Co-Loan relationship network of banks in China by using 2-mode of credit loan of banks to listed companies and analyses its topological structure and the implicated economic meaning by social network analysis from the view of complex network. The result shows: firstly, centrality test demonstrates the rank of the power of Co-Loan relationship network of banks in China, which is state-owned commercial banks, nation-wide joint-stock commercial banks, policy banks, and city commercial banks. Secondly, connectivity test demonstrates that Co-Loan relationship of banks in China has distinguished feature of small world. Thirdly, core-periphery test shows state-owned commercial banks are in the core region, while the other banks are in periphery region. Finally, correlation test and
regression analysis of the relational data shows that the formation of Co-Loan relationship network of banks in China is related to registration place, quality of bank and its profitability rather than risk level of bank loan.
Keywords: Complex Network, Social Network Analysis, Co-Loan Relationship Network of Banks, Topological Structure
source:Finance & Trade Economics ,No3,2014