"I don't look at colour,” says Piet Smal in Gansbaai, South Africa. “I only look at capabilities. If people have capabilities, then I want to employ them.” His company, White Shark Adventures, offers tourists the possibility to swim with sharks.

Under the South African government’s black economic empowerment policies, Piet has to employ a certain percentage of blacks. But he’s gone a step further: his boat crew and office staff are almost all black. But Piet is in favour of positive discrimination, only if it doesn’t affect his company’s performance.