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Three Auctions, Three Strategies (2D): English, Dutch & Vickrey

2D companion auction room: the same group of private-value bidders is run through English (ascending), Dutch (descending) and Vickrey (sealed second-price) rules, so you can watch how format alone changes the winner and the sale price.

Society & Economics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion drives the same private-value auction logic as the 3D room on a flat canvas view: bidder paddles sit around a ring and rise as they stay active, the centre readout tracks the price clock, and switching format (English, Dutch, Vickrey) replays the same kind of bidder population under different rules so the effect of the rules — not the bidders — on price and winner is easy to see.

⚙ Under the hood

2D auction room with English, Dutch and Vickrey formats over private-value bidders; a canvas ring of paddles and a live price/result readout replace the 3D scene.

auction theoryenglish auctiondutch auctionvickrey auctiongame theoryrevenue equivalence

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install