Unit Roots with Breakpoints

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Testing for unit roots with breakpoints in EViews 9
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Hi! Thank you for the video. Helpful. But I don't understand why you use different breakpoint selection and lag length method when testing for GNP and employment. Thanks!

juliebasconcillo
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this might be a stupid question but I am new at this. How do we know what trend and specification to pick for basic and breaking?

sarahmuhsen
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Hi,
i want to know that if we apply "unit roots with breakpoint Test" on E-views. what we should code reference for it.?

muhammadahad
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Greeting, how to take log off non positive number, or how to solve non positive number log issue ?

JalalKhan-rd
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please have you an idea, how may i test the bai and perron's test on the mean and variance equation of gach models, i found an error msg : ARMA terms are not allowed in this procedure!!! thanks

guiriamine
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Hi,
The test "Unit Roots with Breakpoints" is the Perron (1989) test??

Thanks!

davidnalba