Understanding correlations in complex systems is crucial in the
face of turbulence, such as the financial crisis of 2008. However,
in complex systems such as financial systems, correlations are not
constant but instead vary in time” (Preis, Kenett, Stanley,
Helbing, & Ben-Jacob, 2012). In this module, we are moving back
to the stock market. Reliable estimates of correlations are
necessary to protect a portfolio. Looking at the last quarter of
2008, do you see any patterns between consumer confidence and...