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6 经济集聚对工业废水排放的门槛效应检验

Table 6 Test of threshold effect of economic agglomeration on industrial wastewater discharge

工业废水排放指标 门槛数量 F统计量 p值 结论 Bootstrap 次数 临界值 10% 5% 1% lntwater 单一门槛 50.36** 0.024 接受 1000 34.3211 41.8152 57.8334 双重门槛 11.90 0.650 拒绝 1000 45.8562 59.4524 79.2743 lnrwater 单一门槛 60.89*** 0.006 接受 1000 31.4089 37.1389 48.5389 双重门槛 9.38 0.746 拒绝 1000 43.2260 57.6829 87.1891