. xtcips lnng ,maxlags(2) bglags(2) trend

Pesaran Panel Unit Root Test with cross-sectional and first difference mean included for lnng
Deterministics chosen: constant & trend

Dynamics: lags criterion decision General to Particular based on F joint test

H0 (homogeneous non-stationary): bi = 0 for all i

CIPS =    -4.489        N,T = (18,30)
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                   |       10%         5%         1%
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Critical values at |     -2.63      -2.72      -2.88