NAIROBI -- To a growing number of foreign investors, sub-Saharan Africa represents much more than the ethnic clashes, coups, bouts of genocide and natural disasters that have scarred many countries in the region. It represents dazzling opportunities to make money. "If you look at sub-Saharan African markets, they've given annual returns that are substantially better than most around the world," said Ayo Salami, a chief investment officer for Duet, a London-based financial group that inaugurated its first Africa fund in December. "Even this year, most ... (more)