The gold market could be using the technology behind cryptocurrencies to track an almost-$200bn supply chain as soon as next year.

A watchdog group is calling on Amazon.com Inc. to improve conditions for factory workers in China who make Echo speakers and Kindle e-readers, renewing criticisms that CEO Jeff Bezos became the world’s wealthiest man on the backs of low-paid laborers.

Every company uses software, obviously. There isn’t a technology industry keynote that passes without a besuited evangelist telling us that “every business is a technology business” — and they may even pepper in the old “hey Uber has no cars, Amazon has no bookstores” chestnut if they really want to check all the boxes.