Narayan and Popp 2010
Narayan and Popp 2010
Does anyone have code for the test in Narayan, P.K., and Popp, S., (2010) A new unit root test with two structural breaks in level and slope at unknown time, Journal of Applied Statistics, 37, 1425-1438.?
Re: Narayan and Popp 2010
I believe that's a special case of @PerronBreaks.