"Nate Sutton, associate general counsel at Amazon, told lawmakers the company doesn’t tap data from individual third-party merchants to determine what new products to create."

https://www.cnbc.com/2019/07/16/amazon-tells-house-it-doesnt...

Paragraph two of the article

> The online retailing giant has long asserted, including to Congress, that when it makes and sells its own products, it doesn’t use information it collects from the site’s individual third-party sellers—data those sellers view as proprietary.