Access to and use of mobile telephony in sub-Saharan Africa has increased dramatically over the past decade. Mobile telephony has brought new possibilities to the continent. Across urban-rural and rich-poor divides, mobile phones connect individuals to individuals, information, markets, and...

Real income per head in much of sub-Saharan Africa grew rapidly in the 1960s, but faltered following the first OPEC oil price shock in 1973-74, and then stagnated or fell from the late 1970s to the early 1990s. Africa also saw a broad wave of authoritarian rule sweep the continent in the 1960s...