Research Article

Panel Unit Root Tests by Combining Dependent 𝑃 Values: A Comparative Study

Table 6

Size-adjusted power of panel unit root tests: serial correlation, intercept only, cross-section dependence driven by a common factor.

Positive correlationNegative correlation
NTP P

20200.0410.0510.0430.0420.0480.041
500.0530.0540.0500.0430.0540.042
1000.0620.0650.0570.0670.0770.066
50200.0420.0580.0430.0500.0530.048
500.0590.0690.0630.0530.0580.053
1000.0580.0750.0520.0560.0660.054
100200.0450.0580.0410.0440.0510.044
500.0560.0610.0520.0630.0610.065
1000.0540.0670.0530.0690.0830.065

20200.0400.0560.0400.0450.0640.039
500.0720.1000.0690.0690.1170.059
1000.1880.2550.1990.1580.2980.150
50200.0490.0590.0480.0510.0930.045
500.0810.1200.0830.0680.1270.058
1000.2070.3020.2100.1680.3090.150
100200.0510.0540.0460.0370.0840.033
500.1000.1240.0950.0710.1210.063
1000.2090.3300.2210.1480.3450.127

20200.0580.0600.0560.0660.0660.065
500.1530.0830.1480.1190.1100.114
1000.4240.2420.3910.3900.3840.376
50200.0680.0540.0660.0650.0690.061
500.1620.0780.1560.1360.1300.134
1000.4540.2620.4150.3760.3760.352
100200.0620.0520.0610.0580.0630.057
500.1690.0880.1570.1350.1140.135
1000.4310.2680.4110.3580.3710.326

Note. See Table 5.