> My original comment: First come first served is a better

Retailers are first come first serve. The first customer to buy product gets the next unit of inventory.

If you’re trying to argue that retailers need to be forced to set a retail price for each unit of in-stock inventory and then be forced to sell each unit at that price later no matter what the market rate does in the mean time, that’s an awful idea.

I’m sure you don’t mind when retailers decide to give discounts or put things on sale, do you? If the market price drops, they reduce selling price. Same thing when market rate goes up.

Forcing retailers to price things how you want doesn’t change supply and demand. It would only force retailers to add extra margin into their prices to account for the added risk of the government forcing their hand in sale prices.