Yes it's pretty nasty. For generic stuff, the supermarket manipulates the supplier by pushing huge supply demands on them so they shoot their smaller customers.

Yes it's pretty nasty. For generic stuff, the supermarket manipulates the supplier by pushing huge supply demands on them so they shoot their smaller customers. This leads to a single customer scenario, then the supermarket abuses their position by threatening to pull contracts if the supplier doesn't reduce costs etc. Some of the suppliers teeter on the verge of bankruptcy most of the time. That's how you get your cheap stuff. On a positive note the supplier can protest by folding or reducing the quality or fucking up so much that the supermarket gets a bad name because it's their brand on it.