Multi-item auction where all winners pay the same price (usually the lowest successful bid).
: The paper "Bundling Decisions for Selling Multiple Items in Online Auctions" explores how sellers decide whether to auction items individually or as a "bulk" bundle. It highlights that bundling is most profitable when the items are highly complementary. bulk buy auctions
A helpful paper covering "bulk buy auctions"—often referred to in academic literature as or multi-unit auctions —is "Bidder's Strategy Under Group-Buying Auction on the Internet" . Multi-item auction where all winners pay the same
Bidder's strategy under group-buying auction on the Internet bulk buy auctions