Thanks Sven, got it!!! I was getting confused with stata which
sometimes displays Z(rho) and Z(t) statistic.
--
Charles
On Sun, Dec 13, 2009 at 12:02 PM, Sven Schreiber <svetosch(a)gmx.net> wrote:
Charles Koss schrieb:
> I am running a ADF test for a time series, what is the test statistic
> tau? I understand that the null hypothesis is rejected when the
> comparison is made with the critical values.
>
> estimated value of (a - 1): -0.0673784
> test statistic: tau = -1.63219
>
> 10% 5% 2.5% 1%
> Critical values: -2.89 -3.19 -3.46 -3.77
>
it's the t-statistic of the lagged level term, i.e. the t-stat of the
null hypothesis a=1.
cheers,
sven
_______________________________________________
Gretl-users mailing list
Gretl-users(a)lists.wfu.edu
http://lists.wfu.edu/mailman/listinfo/gretl-users