Amazon Used Data from Sellers to Launch Competitive Products

As a retailer, Amazon sells brand name products as well as some of its own products. But it's also a marketplace, meaning it allows third parties to sell goods on their site, too. We report exclusively that Amazon employees have been using data from those third-party sellers to develop their own, Amazon-brand products. It's a practice Amazon has publicly denied for years. Our Amazon reporter Dana Mattioli explains. And: have a work-from-home tech question for Senior Personal Tech Columnist Joanna Stern, or want to share your own experience? Leave her a message at ‪(314) 635-0388‬ or email her at joanna.stern@wsj.com. You may be featured on one of our podcasts. Kateri Jochum hosts. Amanda Lewellyn is our producer. Production assistance from Taylor Nakagawa and Joanna Stern. Learn more about your ad choices. Visit megaphone.fm/adchoices