Table 2 ADF unit root test results
From: Healthcare expenditure and GDP in Ethiopia from 1995 to 2014: a time-series analysis
Variables | Level | First difference | ||
|---|---|---|---|---|
z-statistic | Prob. | z-statistic | Prob. | |
GDPp | − 0.449 | 0.9853 | − 3.948*** | 0.0104 |
THEp | − 1.332 | 0.8799 | − 4.666*** | 0.0008 |
GHEp | − 1.202 | 0.9101 | − 4.644*** | 0.0009 |