Consumer rating sentences to ponder

“Highly specific pools of reputation information will become more useful in aggregate,” said Mr. Fertik, co-author with David C. Thompson of “The Reputation Economy,” a guide to optimizing digital footprints. “If you’re a really good Uber passenger, that may be useful information for Amtrak or American Airlines. But if you add in your reputation from Airbnb plus OpenTable plus eBay, it starts to get useful globally.”

There is more here, interesting throughout.  But will there be errors in these measurements?  As I wrote to Ashok Rao, fresh regressions are a public good.