Research Article
Dynamic Contagion of Systemic Risks on Global Main Equity Markets Based on Granger Causality Networks
Figure 7
Distributions of normalized betweenness centrality of Granger causality networks.
(a) September 2007 (maximum out-degree) |
(b) April 2006 (minimum out-degree) |
(c) September 2011 (European debt crisis) |