Table 1 Descriptive statistics.

From: Dual effects of digital technology on high quality development of road transportation in Heilongjiang Province China

Variable

Obs

Mean

Std. Dev.

Min

Max

HQDRT

144

0.125

0.140

0.015

0.641

UDTL

144

0.197

0.134

0.025

0.796

LED

144

6.668

0.925

5.328

8.748

DGI

144

5.332

0.707

4.060

7.058

PD

144

14.637

0.727

13.444

16.209

DOFT

144

0.113

0.160

0.001

0.815

IS

144

0.717

0.129

0.501

0.964

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