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

Table 6

Impact of command-and-control environmental regulation on the TFP.

Model 1	Coefficients	Model 2	Coefficients
LnFDI_CER < 1.2610	0.0452 (1.3245)	LnFIN_CER < 0.4971	−0.0674 (−1.9001)
LnFDI_CER > 1.2610	−0.0657 (−1.8665)	LnFIN_CER > 0.4971	0.0390 (1.1289)
LnSTR	0.1377 (2.0056)	LnSTR	0.0155 (2.0944)
LnRD	0.0640 (1.8550)	LnRD	0.0871 (2.2240)
LnRFIN	−0.0621 (−3.7404)	LnRFIN	−0.0563 (−1.7925)
LnCER × LnSTR	0.0012 (2.1020)	LnCER × LnSTR	0.0009 (3.2010)
Number of bootstraps	2000	Number of bootstraps	2000

Note. , , and represent significance levels of 1%, 5%, and 10%, respectively; t values are shown in parentheses.