长江经济带经济集聚对工业废水排放影响的空间溢出效应与门槛特征

张帆, 邓宏兵, 彭永樟

Spatial spillover effect and threshold characteristics of economic agglomeration on industrial wastewater discharge in the Yangtze River Economic Belt

ZHANG Fan, DENG Hongbing, PENG Yongzhang

表8 经济集聚对工业废水排放的门槛特征检验结果

Table 8 Test results of threshold characteristics of economic agglomeration on industrial wastewater discharge

门槛变量 lntwater lnrwater 系数 t统计量 p值 系数 t统计量 p值 lnagg≤γ1 -1.176*** -9.88 0.000 -1.482*** -12.20 0.000 lnagg>γ1 -0.963*** -8.62 0.000 -1.243*** -10.91 0.000