And bulk discounts aren't market segmentation, but a way for the store to pass on reduced costs due to lower overheads to the customer. Again, they are also usually clearly disclosed because incentives are aligned.
I don't every remember seeing places which are transparent about the discounts they offer staff and family off staff. At the very least, I've never seen signs listing those discounts.
Okay, it's not market segmentation. My comment was in response to what scott79 wrote: 'You have to put up a price and adhere to that price regardless of who wants to buy.'
That means that if I didn't list a bulk price and someone comes in and asks what the discount is for a bulk order, then, what, I need to refuse them?
Or can I can scribble the price on the tag right then, for the sale, and erase it immediately afterward?
I'm simply not able to figure out what the guidelines should be. I'm also not sure that "transparent" is that useful of a term, given how easy it is to put clauses in terms&services which people affirm without reading.
Or from HHGTTG: “But the plans were on display…” ... “It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying ‘Beware of the Leopard.”
My local grocery store has a senior discount on Tuesday mornings.
Many places have student discounts.
Some places offer a discount if you buy in bulk.
I used to be a book store club member, which would give me a discount on prices. A local history club has monthly public talks, with discounted prices for members. And of course most grocery stores have that sort of scheme.
My father worked for a company which offered family discounts to its employees.
You'll find little support for making all of those illegal.
Of course some of these schemes are illegal in some areas, such as a bar offering discounted drinks for women, but those fall under civil rights law, not customer protection.