Hello All,
Happy New Year to you all!
I am doing a macroeconomic studies involving monthly time series spanning form 2010-Jan to 2017-Dec. I have already deasonalized or seasonally adjusted all my four variables (i.e. retail gasoline price, CPI, Exchange rate and RGDP). I want to implement the HEGY's Seasonal unit rooot test. Is it possible to still do the test after I've already seasonally adjusted the series?
Please help me out....
Best regards,
Joe