Domestic Investment, Foreign Direct Investment, and Economic Growth Nexus: A Case of Pakistan

Table 1

Results of PP unit root tests.

Variables	With constant	With constant and trend
LNFDI	−2.86	−3.31
LNDINV	−1.32	−2.18
LNGDP	−1.89	−2.80
ΔLNFDI	−6.82*	−6.84*
ΔLNDINV	−4.51*	−4.53*
ΔLNGDP	−8.12*	−11.03*

Note: critical values for constant at 1% and 5% are −3.64 and −2.95 whereas values for constant with trend are −4.25 and −3.55.
∗show significant at 1 percent level.