Columbia subject headings:
Harvard subject headings:
Africa--Economic conditions--21st century.
Economic development--Africa--International cooperation.
Economic development--Africa.
Financial crises--Africa.
Infrastructure (Economics)--Africa.
Nigeria--Economic conditions--21st century.
Poverty--Africa
Princeton subject headings:
Africa--Economic conditions--21st century.
Economic development--Africa--21st century.
Economic development--Africa--International cooperation.
Financial crises--Africa.
Infrastructure (Economics)--Africa.
Poverty--Africa.