Table 5 Regression results for mediation mechanism.

From: The impact of the digital economy on urban total factor productivity: mechanisms and spatial spillover effects

Variables

The rationalization of industrial structure

The advancement of industrial structure

Urban innovation and entrepreneurship

LnDEit

− 0.036 (− 0.28)

0.105*** (3.77)

0.113** (2.43)

LnRSPit

− 0.016** (− 2.50)

− 0.053* (− 1.87)

LnAISit

− 0.416*** (− 5.37)

0.005 (0.48)

LnPGDPit

0.998*** (13.89)

− 0.526*** (− 16.10)

0.344*** (12.12)

LnIEit

− 0.087 (− 1.55)

− 0.014 (− 1.11)

SEit

0.058*** (6.70)

0.002 (1.09)

0.036*** (10.92)

Time fixed Effects

Yes

Yes

Yes

Regional fixed effects

Yes

Yes

Yes

N

2565

2565

2565

R2

0.837

0.890

0.887

  1. *,**,***Denote significance levels of 10%, 5%, and 1%, respectively, with t-values shown in parentheses.