demonstrate
shown
The centrality metric used, most important nodes (stocks) are shown with larger size and darker gray
instead of raising
there exist 16 to 17
stocks with a coefficient equal to 1 and many more with coefficient close to 1.
No significant results
compared to
Clearly, the “herd”
phenomenon is present, since there exist too few stocks with negative correlation, compared to the positive
correlation ones. In 2007, the ratio of negative to positive correlations is merely 0.3%.