Walmart will also do this intentionally to their vendors, or engage in what I call temporal arbitrage.
It hurts Walmart as a business very little to stop selling Vendor X goods on their shelves when there are substitutes available. However, for Vendor X it's often the case that Vendor X cannot adjust their output as quickly as Walmart can take the product off shelves. That action, taking them off the shelves for even a short period of time while Walmart presses for renegotiating terms can result in layoffs, loss of revenue could result in lines of credit drying up. It's an existential threat to a company because they can't scale up and down at the speed Walmart demands.
If I recall correctly there's a record of this happening with Rubbermaid, and they responded to Walmart's demands for prices by cutting costs, cutting corners with quality, and ultimately sullied their brand name.
You should, because this kind of behaviour ripples through so many companies, that I wouldn't be surprised if you actually not on the receiving end of things.
Retailer lowballs the manufacturer. The manufacturer then needs to lowball someone too, probably starting from its employees. Also the supplier who can be anything from local hardware store to some IT giant.
I think another upshot is that it ends up making all consumer products "lowest common denominator" consumer products. It's a vicious cycle:
Step 1: Company has a great product. Walmart begins stocking it nationwide, perhaps promoting it to increase their marketshare. That product's revenues explode, they expand, everything seems great.
Step 2 to N: Then Walmart threatens to pull from shelves unless they can meet the cost of $substituteGood. The company cuts costs to make it work. Rinse and repeat.
Step N+1: The product is no longer great.
This is exactly what has happened with Rubbermaid and with countless other consumer goods.
There's a book called The United States of Wal-Mart that details a lot of the damage that Wal-Mart has done. I wouldn't be surprised if there's a follow up for Amazon.
It hurts Walmart as a business very little to stop selling Vendor X goods on their shelves when there are substitutes available. However, for Vendor X it's often the case that Vendor X cannot adjust their output as quickly as Walmart can take the product off shelves. That action, taking them off the shelves for even a short period of time while Walmart presses for renegotiating terms can result in layoffs, loss of revenue could result in lines of credit drying up. It's an existential threat to a company because they can't scale up and down at the speed Walmart demands.
If I recall correctly there's a record of this happening with Rubbermaid, and they responded to Walmart's demands for prices by cutting costs, cutting corners with quality, and ultimately sullied their brand name.