Japanese financial services group Orix bought a 6.4 billion yen ($59.8 million) stake in Wecash, a Chinese startup that uses big data and artificial intelligence to rate consumer credit. Wecash can calculate a consumer's creditworthiness in 10 seconds or less using phone records and other personal information, and has partnered with dozens of financial institutions so far. It also suggests potential lenders to consumers looking to take out a loan. The startup relies on information collected with consumers' consent through social media, workplaces and other sources. Only about 30% of the Chinese population is believed to borrow money from banks.