Does Amazon make money at the expense of merchants? Jeff Bezos disagrees

Fifteen years ago, Jason Boyce made a bet on Amazon that changed his life for the better. He started selling basketball hoops on the site—known mostly for books at the time—and his sales and profits took off.Today, Boyce worries his relationship with the world’s biggest online retailer is getting more and more lopsided. Amazon has evolved from partner to competitor, making products similar to his, selling them for less and giving them prominence on the site. To stand out, Boyce must now buy advertising, which makes Amazon even more profitable at his expense. Amazon.com Inc.