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. 2020 Aug 24;20:774. doi: 10.1186/s12913-020-05414-z

Table 11.

Pooled Mean Group (PMG) Causality test

Variable Coefficients t- statistics Probability Conclusions
INDUS→ PHEC 0.019 (0.025) 0.789 0.430 Unidirectional causality between PPHCE and INDUS
PHCE →INDUS 0.347 (0.039) −8.735 0.000***
PHCE →POP 0.549 (0.109) 5.426 0.000** Unidirectional causality between PHCE and POP
POP → PHCE 0.018 (0.062) 0.789 0.432
PHCE →GDP 0.495 (0.296) 16.704 0.000*** Bidirectional causality between PHCE and PGDP
PGDP → PHCE 0.743 (0.053) 14.013 0.000***
PHEC →TEC 0.979 (0.076) 12.763 0.000*** Bidirectional causality between PHCE and TEC
TEC → PHEC −0.020 (0.009) −2.149 0.032**
PHEC → AGRIC 0.322 (0.054) 5.879 0.000** Bidirectional causality between PHCE and AGRIC
AGRIC → PHCE 2.729 (0.046) 5.983 0.000***
OOP → INDUS −0.109 (0.072) −6.334 0.000*** Bidirectional causality between OOP and INDUS
INDUS→ OOP −0.090 (0.048) −1.861 0.064*
OOP → POP 0.532 (0.202) 2.630 0.009** Bidirectional causality between OOP and POP
POP →OOP −0.629 (0.214) −2.929 0.003***
OOP → PGDP 0.025 (0.014) 13.740 0.000*** Bidirectional causality between OOP and PGDP
PGDP → OOP 1.068 (0.118) 9.035 0.000***
TEC → OOP −0.035 (0.022) −1.573 0.117 Unidirectional causality between OOP and TEC
OOP → TEC 0.171 (0.055) 3.084 0.002v**
OOP → AGRIC 0.1549 (0.051) 3.095 0.002*** Unidirectional causality between OOP and AGRIC
AGRIC →OOP −0.123 (0.110) −1.112 0.267

Standard deviation is in parenthesi s. ***, **, * represents 1, 5 and 10% significance level, respectively