Advanced Micro · intro
What moves on the Auction Theory diagram
More rivals raise the chance that shading loses you the auction. Optimal bids climb toward true value: competition transfers surplus from bidders to the seller.
With few rivals you can shade your bid well below your value and still often win.
Five more bidders show up.
The optimal bid function rotates up toward the 45-degree line: shading is now dangerous.
With many bidders, first-price auctions squeeze nearly all the surplus from winners. Sellers love a crowd for exactly this reason.
Examiners ask this as: more bidders, competitive auction, bidding war, crowded auction, many rivals.
Other scenarios on Auction Theory