Nationwide

East area

North-east area

Central

Region

Western Region

C

2.98615***

3.843531***

0.943194***

4.114384***

2.707304***

(31.60501)

(20.15824)

(2.26593)

(21.39642)

(21.19105)

RT

0.011639***

0.040586***

0.037454***

0.017593***

0.001886

(5.973508)

(6.491548)

(5.341724)

(4.087764)

(1.123103)

LNK

0.497682***

0.459336***

0.436348***

0.434385***

0.510382***

(127.3533)

(50.69377)

(21.01882)

(51.12033)

(93.45919)

LNW

0.12039***

0.067752**

0.612517***

−0.001562

0.10226***

(6.129305)

(1.83)

(7.032749)

−(0.042574)

(3.718001)

RIE

0.038504**

−0.069309***

0.102604

0.092287

0.13642***

(1.939719)

−(2.647027)

(1.222787)

(0.847601)

(3.842326)

RIN

−0.131171***

−0.034651

−0.128963***

−0.466795***

−0.117548***

−(9.254036)

−(1.111616)

−(2.357456)

−(13.37224)

−(5.663805)

RFDI

0.000504***

0.000161*

5.36E−05

0.004078***

0.000921***

(6.188176)

(1.443498)

(0.630222)

(12.10526)

(7.3774)

R-squared

0.997281

0.99602

0.996639

0.994802

0.996812

Adjusted R-squared

0.996728

0.995167

0.995848

0.993688

0.996145

F-statistic

1801.361

1167.017

1258.593

892.4946

1493.242