The future of philanthropy will involve a mix of different approaches

Anand Giridharadas, an American author, is well-known for criticising the great and the good who gather at the World Economic Forum meeting in Davos every year. “I have a feeling,” he wrote in one philippic, “that girls in Africa are tired of being empowered by men in Davos.” Mr Giridharadas probably did not expect anyone to test his hypothesis. Nonetheless, your correspondent had a go.