Bargaining and Auctions

The game-theory sequence on bargaining and auctions. Bargaining as an iterated, two-sided Ultimatum Game over the antique table's $50-$400 surplus, with the even split as a Schelling point (and the Art of Strategy alternating-offers proof, via the Olympics-souvenir strike, that rational bargaining converges to 50-50). Hard-bargaining tactics: misrepresenting your valuation (the enchanted-island-wood haggling), rigging the ultimatum (show up with only a check for the agreed amount), and the BATNA/outside option (a $300 substitute drops the table's price from $225 to $175). Auctions: English, sealed-bid, Dutch, and the economists' favorite Vickrey second-price auction, with the clean proof that truthful bidding is dominant; all converge to the second-highest valuation.

Quality 70 · Strong. Upper-Solid. Thorough, clear coverage of bargaining and auctions with the BATNA concept and the Vickrey-auction truthfulness result well-explained. Pure exposition of standard mechanism design (The Art of Strategy), so it sits with the other sequence explainers.

Claude’s paradigm shift 32 · Slight. Slight-moderate — Vickrey auctions and BATNA are long-established; the value is lucid, well-exemplified exposition.

Real-world impact 2 · Minor. A clear explainer of standard, pre-existing mechanism-design theory (bargaining/BATNA/Vickrey auctions); pedagogical reach within the rationalist community, no concrete change to laws, institutions, or ordinary lives → RWI 2.