Gates Helps Australia’s Richest Man in Bid to End Slavery

Microsoft Corp. founder Bill Gates, who has gifted $28 billion to his charitable foundation, gave some simple advice to Australia’s richest man Andrew Forrest on his crusade to end modern slavery: find a metric to quantify it.

“Global modern slavery is hard to measure and Bill’s a measure kind of guy,” Forrest, 51, the founder of iron ore producer Fortescue Metals Group Ltd. who formed the Walk Free anti-slavery charity last year, said in a phone interview. In McKinsey & Co. “management speak, if you can’t measure it, it doesn’t exist,” he said.