Before revision:  We show that the true mathematical model of the coronavirus outcome is constituted only of few determinants, but the extent to which each determinant is able to provide an adequate explanation varies between countries due to their heterogeneous socioeconomic structures .
After revision:  We show that the true mathematical model of the coronavirus outcome is constituted only of few determinants, but the extent to which each determinant is able to provide an adequate explanation varies between countries due to their heterogeneous socio-economic characteristics .