Tag Archives: causality

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Causality

Author: Leo Chen, Ph.D., Post Date: June 11, 2018
Cumberland Advisors Market Commentary - Leo Chen, Ph.D.

On day 1 our econometrics professor warned us to be careful with correlation: A strong correlation doesn’t necessarily mean causality. This is the case with the VIX. It’s closely related to the S&P 500 with a negative correlation, but the relationship may not be causal. I will never forget the example our professor gave us: […]