Convergence in TFP among Italian Regions - Panel Unit Roots with Heterogeneity and Cross Sectional Dependence



Table 2: Panel Unit Root Tests of TFP - ln(yit)

All Regions (N=19)

Test Statistic P-value           Conclusion

LLC

-5.69

0.0804

No Convergence

IPS

-1.62

0.3140

No Convergence

MADF

258.98

26.38

Convergence

South (N=7)

Basilicata, Calabria, Campania, Molise, Puglia, Sardegna, Sicilia

Test Statistic P-value           Conclusion

LLC

-4.56

0.0888

No Convergence

IPS

-1.88

0.1430

No Convergence

MADF

29.26

26.38

Convergence

Centre-North (N=12)

Emilia Romagna, Friuli V.G., Liguria, Lombardia, Piemonte
Trentino A.A., Veneto, Lazio, Marche, Toscana, Umbria, Abruzzo

Test Statistic P-value           Conclusion

LLC

-4.38

0.0264

Convergence

IPS

-1.56

0.4430

No Convergence

MADF

89.36

26.38

Convergence

Centre (N=5)

Lazio, Marche, Umbria, Toscana, Abruzzo

Test

Statistic

P-value____

Conclusion

LLC

-2.78

0.0627

No Convergence

IPS

-1.63

0.3940

No Convergence

MADF

28.63

26.38

Convergence

North (N=7)

Friuli V.G., Liguria, Lombardia, Piemonte, Trentino A.A.
Veneto, Emilia Romagna

Test

Statistic P-value           Conclusion

LLC
IPS
MADF

-3.88     0.0204              Convergence

-1.69     0.3130           No Convergence

24.79_____26.38____________No Convergence_________

For MADF, the critical value is reported instead of the p-value

22



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