Research Article

Impact of Labour Productivity Differences on Urban-Rural Integration Development and Its Spatial Effect: Evidence from a Spatial Durbin Model

Table 6

Regression estimation results of the three models.

OLS regressionSDM with random effectSDM with fixed effect

ln (LPD)0.091 (0.028)0.116 (0.002)0.147 (0.000)
ln (STP)0.424 (0.000)0.167 (0.000)0.175 (0.000)
ln (OUL)0.084 (0.028)0.012 (0.364)0.031 (0.049)
ln (AIL)−0.136 (0.263)−0.174 (0.003)−0.140 (0.015)
(LPD)−0.116 (0.019)−0.106 (0.035)
(STP)0.018 (0.54)0.001 (0.967)
(OUL)0.009 (0.39)0.041 (0.067)
(AIL)0.125 (0.177)0.834 (0.359)
R-square0.77890.88450.8222
Rho0.561 (0.000)0.529 (0.000)
Direct effect of ln (LPD)0.100 (0.016)0.138 (0.000)
Indirect effect of ln (LPD)−0.100 (0.084)−0.061 (0.094)
Overall effect of ln (LPD)0.001 (0.078)0.077 (0.088)