Every big retailer has its own house brand. There is nothing special about a big retailer using their sales data to make decisions on house branding.
No they cannot adjust their pricing to whatever they like because Amazon is not a monopoly. People can buy stuff elsewhere. If Amazon pricing is bad, people will leave and it will kill Amazon.
No they cannot adjust their pricing to whatever they like because Amazon is not a monopoly. People can buy stuff elsewhere. If Amazon pricing is bad, people will leave and it will kill Amazon.