Ch. 21 Univariate Unit Root process 1 Introduction Consider OLS estimation of a AR(1)process, Yt= pYt-1+ut where ut w ii d (0, 0), and Yo=0. The OLS estimator of p is given by and we also have
3.1 Sampling distribution of OLS estimator 3.2 The t Test 3.3 Confidence Intervals 3.4 Testing a single Linear Combination 3.5 Testing Multiple Linear Restrictions 3.6 About multicollinearity 3.7 Interpreting and Reporting regression results