The money can be generated by govt. institutions which provide grants to small NGOs working in various projects in Africa, precisely to reduce the deceleration. But looking at various political and economic factors in African countries, its not easy for aid to have the longlasting impact, that the providers of aid hope for. With the present global economic conditions its very important for African countries themselves to seek self sufficiency in some of the projects which require foreign financial aid, so that even if the aid coming in reduces, it doesn't have a great impact. This seems to be an option to tailor their spendings, as you have indicated. Its an equivilateral effect in my view. If the foreign aid is to reduce or slow down, some kind of self sufficiency is needed in the African countries to bear the brunt of this slowdown. This might also help in increasing accountability in measuring performance too.