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. 2021 Jan 4;28(14):17119–17131. doi: 10.1007/s11356-020-12130-y

Table 3.

Results of truncated regression

Variable Panel South East Asia South Asia East Asia
lnTI 0.0224 (0.017) − 0.115** (0.0518) − 0.257*** (0.0416) − 0.00094** (0.0943)
lnTI2 0.0015** (0.0081) 0.0104*** (0.00374) 0.0112*** (0.00187) 0.00978*** (0.00402)
lnPGDP − 0.0739** (0.052) 0.103** (0.0709) − 1.224** (0.273) − 0.344*** (0.219)
lnPGDP2 0.0537** (0.0081) − 0.0046 (0.00374) 0.0741*** (0.00187) 0.0258** (0.00402)
lnFDI 0.0158*** (0.0031) − 0.0296 (0.0068) − 0.0194*** (0.0041) 0.0190*** (0.0078)
HC 0.0291*** (0.0090) 0.131*** (0.0168) 0.111*** (0.0126) 0.0500*** (0.016)
lnREC 0.0441*** (0.0069) − 0.00686 (0.013) 0.0592*** (0.0137) 0.0896*** (0.0134)
lnREC*lnTI 0.0385*** (0.0062) 0.0173* (0.0096) 0.0110*** (0.00235) 0.0523*** (0.0087)
Constant 0.336*** (0.0681) 0.247 (0.262) 1.682*** (0.119) 0.187 (0.521)
Obs 334 162 111 60
Log likelihood 390.9976 201.8988 179.0502 115.2132
Wald chi2 149.31 66.25 491.18 176.61
Prob > chi2 0.000 0.000 0.000 0.000

Note: aStandard errors in parentheses. b***, **, * signify 1%, 5%, 10% significance