Time-Series Analysis

Free CFA Level II lesson in Quantitative Methods. 13 min read, ~1,882 words.

AR(1) stationarity condition: absolute value of lag coefficient < 1. Mean-reverting level = b0 / (1 - b1). ADF test null = unit root (non-stationary). Reject only when test statistic is more negative than critical value, opposite of standard t-test intuition. Multi-period forecasts chain forward: forecast(1) feeds into forecast(2), never...

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