Correlation Cointegration Analysis

Concept

Cointegration analysis examines the long-term equilibrium relationship between two or more non-stationary time series, even if they are individually trending. While individual series may fluctuate widely, cointegration suggests they share a common stochastic trend, implying they will not drift infinitely far apart. This concept is distinct from simple correlation, which only captures short-term linear association. Identifying cointegrated pairs can reveal underlying economic linkages.