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Hello Allen 1, - The non-rejection of the null hypothesis means that the series is non-stationary with structural break in 6/25/2007. 2. - Indeed must pass after applying the test on the first difference, but now the data-generating process, should be only break in the intercept. This is because to ...

Hi Blanca

Sorry, but I do not know about this test...

Hello Blanca The value of the lag that you give the program at first, is the maximum lag, and usually the maximum lag is given by the frequency at which data are recorded, 12 for annual data, 4 for quarterly data, the program only needs maximum lag (4 or 12) and internally determines the optimal lag...