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In the Panel Unit Root Test for IPS, there is an option to choose lag length automatically called t-statistic. Is this option the same as the step-down procedure where one: 1. starts with a large number of lags. 2. Test significance of largest lag. 3. If significant, stop process and chosse this tru...

Hi,

I am trying to interpret the residuals from a regression. I entered the command actual, fitted residual table, and I want to know what the dashed lines represent in the residual plot.

Thank you,

Diana