The ad-tech world worked on a Vickery Auction for quite some time. I've often wondered what things would look like if the financial world worked that way instead.
(Vickery Auctions are pretty much dead now because websites saw that bidders were bidding $X and automatically assumed that because they weren't getting $X, but rather $(X - Y), they were being ripped off)
(Vickery Auctions are pretty much dead now because websites saw that bidders were bidding $X and automatically assumed that because they weren't getting $X, but rather $(X - Y), they were being ripped off)