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. 2022 Apr 23;29(42):63709–63721. doi: 10.1007/s11356-022-20314-x

Table 5.

Long-run results of the three steps for infant mortality (Imo)

Step 1 Step 2 Step 3
Imo COpc COehp COlfc COint Imo Imo
HE −0.206* (0.000) −0.126** (0.034) −0.141* (0.002) −0.119*** (0.059)

−0.102***

(0.070)

−0.161*** (0.055)
RDexp −0.177* (0.000) −0.150* (0.004) −0.129*** (0.063) −0.138** (0.025)

−0.125**

(0.010)

−0.099**

(0.023)

PET (a) −0.102 (0.116)
COpc

0.149**

(0.013)

−0.094

(0.159)

COehp

0.098**

(0.044)

−0.077

(0.124)

COlfc

0.159*

(0.000)

−0.114

(0.110)

COint

0.138**

(0.019)

−0.102

(0.130)

Edu −0.311* (0.000) −0.293* (0.000) −0.244* (0.000)
Y −0.305* (0.000) 0.476* (0.000) 0.398* (0.000) 0.418* (0.000) 0.504* (0.000) −0.246* (0.000) −0.294* (0.000)
EC 0.616* (0.000) 0.556* (0.000) 0.579* (0.000) 0.497* (0.000)
Tr 0.327* (0.000) 0.282* (0.000) 0.338* (0.000) 0.360* (0.000)
constant

0.657

(0.000)

4.306* (0.000) 9.455* (0.000) 7.621* (0.000) 3.882* (0.000)

1.803

(0.000)

3.567

(0.000)

(a) We did not include PET in steps 2 and 3 because its impact is not significant in the first step