Determinants of Electricity Transmission and Distribution Losses in South Africa

Table 2

Zivot-Andrews unit root test results.

Series	At levels t-statistic(breakpoint)	At first difference t-statistic (breakpoint)
lnY	−3.6717 (2004)	−5.338 (1982)
lnINV	−3.928 (1984)	−6.4027 (1994)
P	−3.3667 (1993)	−7.287 (2007)
POLI	−10.0489 (1992)	−4.6116 (1995)
lnEINT	−3.2604 (1982)	−6.1131 (1994)
lnEPL	−4.7202 (1984)	−9.3225 (1987)

Note. and denotes 1, and 5% level of significance, respectively.