Research Article
Nonlinear Cointegration and Asymmetric Adjustment in Purchasing Power Parity of the USA, Germany, and Pakistan
Table 2
Unit root test at first difference.
| | Variable | Model | | | | | | | | Order of integer |
| | C, t, d | −4.65 (−2.82) | −5.32 (−1.89) | 23.20 (3.05) | 23.121 (3.08) | 23.39 (3.14) | 25.17 (3.05) | 20.23 (3.07) | I(1) | | C, t, d | −4.79 (−2.78) | −4.56 (−1.89) | 31.09 (3.05) | 25.901 (3.08) | 25.05 (3.11) | 21.46 (3.05) | 22.80 (3.07) | I(1) | | C, t, d | −5.85 (−2.78) | −5.99 (−1.89) | 27.80 (3.05) | 29.12 (3.08) | 31.12 (3.14) | 26.44 (3.05) | 31.82 (3.07) | I(1) | | C, t, d | −5.80 (−1.87) | −5.33 (−1.89) | 29.29 (3.05) | 32.32 (3.11) | 31.12 (3.16) | 26.00 (3.07) | 26.54 (3.08) | I(1) | | C, t,d | −3.49 (−2.81) | −5.96 (−2.97) | 34.77 (6.35) | 27.31 (6.37) | 43.99 (6.29) | 20.90 (6.36) | 24.36 (6.31) | I(1) | | C, t,d | −4.49 (−2.76) | −6.50 (−2.79) | 45.49 (6.35) | 45.05 (6.37) | 29.85 (6.29) | 48.35 (6.36) | 16.16 (6.31) | I(1) | | C, t,d | −2.10 (−1.87) | −3.82 (−1.89) | 12.17 (3.05) | 17.71 (3.11) | 11.98 (3.16) | 20.40 (3.07) | 18.85 (3.08) | I(1) |
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