about understanding global economy homework

to what extent does neoclassic growth theory building on the solow growth model predict and absolute or unconditional process of convergences between national income to smiliar per capita incomes and rates of national income growth? Do you think such a proposition would be in fact be consistent the cross country evidence? And how solow growth model explain some economics grow faster than other even they converge on similiar per capital incomes and rated of national income growth?