Improvement of Different Types of Environmental Regulations on Total Factor Productivity: A Threshold Effect Analysis

Table 5

Threshold values and 95% confidence intervals of threshold variables.

Threshold variable	LnFDI_CER	LnFIN_CER	LnFDI_HER	LnFIN_HER	LnHUM_VER
Value of the threshold	1.2610	0.4971	1.0063	1.0337	2.2751
Confidence interval	[0.9805, 1.5508]	[0.4983, 0.5344]	[0.9475, 1.0308]	[1.0271, 1.0396]	[2.2704, 2.2923]