Quantifying The Behavior Of Stock Correlations Under Market Stress

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 data may be accessed here using the tool and the Dow Jones Industrial Average (DJIA)?

Please calculate the correlation coeeficient and describe the result based on the strength of the result and its direction. Come prepared to discuss in class.


Preis, T., Kenett, D. Y., Stanley, H. E., Helbing, D., & Ben-Jacob, E. (2012, October 18). Quantifying the Behavior of Stock Correlations Under Market Stress.