An Empirical Estimation of the Underground Economy in Ghana

Table 6

Result of unit root test for currency demand model.

Variable	ADF test 𝑡-statistic	Probability	Durbin-Watson stat
LRGDP	−6.2475	0.0003	2.149
LCPI	−4.2348	0.0060	1.626
LINTRAT	−2.6552	0.0000	2.071
LM2	−3.6258	0.0153	1.819