From: Toward a sustainable growth path in Arab economies: an extension of classical growth model
 | FPKPSS stationarity test |  | CIPS unit root test | |
---|---|---|---|---|
Variables | Level | First difference | Level | First difference |
lngdp | 3.459* | 1.143 | − 2.052 | − 3.509* |
lncrd | 5.811* | 1.625 | − 2.110 | − 4.571* |
lnsav | 3.832* | -0.679 | − 1.909 | − 4.367* |
lnexp | 14.57* | 0.496 | − 1.701 | − 4.480* |
lnlab | 21.66* | 1.212 | − 1.888 | − 2.921* |