Buy Auctions — Bulk

: This is a specific type of "bulk" auction where multiple identical items are sold. Bidders submit bids for both a price and a quantity, and winners pay the exact amount they bid. Summary of Bulk Auction Types Auction Type Description Group-Buying

Bidder's strategy under group-buying auction on the Internet bulk buy auctions

Multi-item auction where all winners pay the same price (usually the lowest successful bid). : This is a specific type of "bulk"

: The research from ResearchGate analyzes bidding processes under the Independent Private Values (IPV) model. It proves that the optimal strategy for a bidder is generally to bid their true perceived value, regardless of when they join the auction. : The research from ResearchGate analyzes bidding processes

: "Auction-Based Mechanisms for Electronic Procurement" describes scenarios where purchase requests are aggregated and bundled into a single Request for Quote (RFQ), allowing suppliers to provide volume discounts through competitive bids.

This paper is particularly insightful because it defines the "group-buying auction" as a dynamic pricing mechanism where bidders form a collective to secure volume discounts: the more people who bid, the lower the final price becomes for everyone in the group. Key Papers & Concepts