The wealth or poverty of nations depends primarily on intrinsic factors: geography, climate and availability or lack of resources. Having a geographic location proximate to large, thriving population centers plays a large role in boosting national economy. Certain natural resources, like rich, fertile soil and abundance of water, support farming and agriculture, which is a lucrative income for many countries.
Nations rich in these natural resources generally fair better than their less well-endowed peers. Sometimes, like in many countries of central Africa, climate hurts nations' economies. Hot and dry conditions may give rise to the spread of disease, which is a primary factor leading to perpetual poverty. Lack of access to clean, abundant water sources also deprives countries of economic opportunities.