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Table 2 Unit root test

From: Environment and economic growth: is the rule of law the go-between? The case of high-income countries

  LLC IPS Breitung Fisher Hadri
GDP −0.554 0.003 1.078 68.221 24.663
  0.289 0.501 0.859 0.402 0.000
d.GDP −4.909 −3.676 −4.669 142.41 1.227
  0.000 0.000 0.000 0.000 0.110
Poll −3.746 2.907 3.154 42.061 16.464
  0.000 0.998 0.999 0.991 0.000
d.Poll .. −7.022 −3.997 267.87 −1.444
   0.000 0.000 0.000 0.926
RoL −3.914 −1.354 −1.684 84.69 14.11
  0.000 0.088 0.046 0.061 0.000
d.RoL .. −9.076 −7.409 294.89 −0.067
   0.000 0.000 0.000 0.527
  1. Note: p value in italics