Sustainable Energy Research

Table 3 Results of the Zivot and Andrews unit root test

From: Balancing short-term costs and long-term benefits: an analysis of the impact of hydroelectric power generation on electricity prices volatility in Cameroon

Variables	ZA
Variables	Level	Breakpoint	Lag
ln_HYDRO	−4.392	2012	0
ln_DE	−5.003**	2006	0
ln_REER	−3.907	2010	0
ln_GDP	−4.508	2012	0
ln_EPv	−3.844	2012	0
Exact critical value
1%	−5.34
5%	−4.80
10%	−4.58

Source: Authors
ZA Zivot and Andrews unit root test
^* and ** denote 1% and 5% significance levels, respectively

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