Explanatory Variable

Option: I

Option: II

Option: III

Option: IV

Option: V

β

T-Statistics

β

T-Statistics

Β

T-Statistics

β

T-Statistics

β

T-Statistics

Constant

34.386**

2.287

31.863**

2.085

36.338**

2.292

30.959*

1.866

30.232*

1.809

DBUS(-1)

3.370***

6.252

DBUS(-2)

3.210***

6.048

2.850***

4.891

3.205***

6.015

3.176***

5.898

FDIG

2.935***

10.688

2.935***

10.602

3.050***

10.761

2.938***

10.563

2.936***

10.542

EASE

0.571**

2.543

0.629***

2.7890

0.479*

1.912

0.638***

2.718

0.654***

2.743

LNDRAT

−0.735***

−3.039

−0.779***

−3.106

−0.706**

−2.519

−0.780***

−3.104

−0.778***

−3.094

TIMERQ

0.020

0.141

0.023

0.156

PCI

−1.08E−07

−0.396

DCPS

0.091

1.261

Adjusted R²

0.4553

0.45148

0.4560

0.4500

0.4489

F-statistic

84.3671

82.4718

66.2160

65.8164

54.7549

Akaike Info Criterion

10.2397

10.2508

10.2548

10.2558

10.2604

Schwarz Criterion

10.2896

10.3010

10.3159

10.3160

10.3307

H-Q Criterion

10.2595

10.2707

10.2790

10.2797

10.2883

D-W Statistic

0.5062

0.5017

0.5029

0.5028

0.5022