Table A7 Heteroscedasticity test for... | Emerald Publishing

Table A7

Heteroscedasticity test for Equation (4).

Random-effects Poisson regression
ln_FC_ij	Coef.	St.Err.	t-value	p-value	[95% Conf	Interval]	Sig
ln_GDP_Cap_j	0.124	0.023	5.50	0	0.08	0.168	***
ln_GDP_Cap_i	0.056	0.018	3.04	0.002	0.02	0.092	***
AfCFTA_ij	0.002	0.017	0.10	0.917	−0.031	0.035
ln_Dist	−0.181	0.04	−4.52	0	−0.26	−0.103	***
Lang_ij	0.152	0.052	2.93	0.003	0.05	0.254	***
contig	0.215	0.079	2.71	0.007	0.06	0.37	***
Constant	2.995	0.312	9.60	0	2.383	3.607	***
lnalpha	−1.69	1.291	.b	.b	−4.22	0.84

Random-effects Poisson regression
ln_FC_ij	Coef.	St.Err.	t-value	p-value	[95% Conf	Interval]	Sig
ln_GDP_Cap_j	0.124	0.023	5.50	0	0.08	0.168	***
ln_GDP_Cap_i	0.056	0.018	3.04	0.002	0.02	0.092	***
AfCFTA_ij	0.002	0.017	0.10	0.917	−0.031	0.035
ln_Dist	−0.181	0.04	−4.52	0	−0.26	−0.103	***
Lang_ij	0.152	0.052	2.93	0.003	0.05	0.254	***
contig	0.215	0.079	2.71	0.007	0.06	0.37	***
Constant	2.995	0.312	9.60	0	2.383	3.607	***
lnalpha	−1.69	1.291	.b	.b	−4.22	0.84

Mean dependent var	6.341	SD dependent var	3.343
Number of obs	4,394	Chi-square	6213.636
Prob > χ²	0.000	Akaike crit. (AIC)	18837.912

Note(s): ***p < 0.01, **p < 0.05, *p < 0.1

Source(s): Authors’ compilation