Mechanism Design & Auctions
Leonid Hurwicz / William Vickrey · 1960
"Mechanism design reverses game theory: instead of predicting play given rules, it engineers rules so that self-interested play produces the outcome you want — most cleanly in auctions where truthful bidding can be made the best strategy."
Hurwicz asked the inverse question of game theory: don't predict how people will play this game — design a game people will play truthfully even while pursuing self-interest.
Vickrey's second-price auction makes truthful bidding a dominant strategy: you pay the second-highest bid, so bidding your true valuation can't hurt you and shading it can only lose you a profitable win. Myerson and Maskin generalized the revelation principle — any outcome achievable with strategic play is also achievable with a truthful mechanism. Power appears in ad auctions, spectrum sales, and kickstarters where rule design, not exhortation, produces honesty.
What does a second-price (Vickrey) auction make individually optimal for bidders?
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The explanation above is written with AI assistance. These are the originals — go to them to check it.
- Counterspeculation, Auctions, and Competitive Sealed Tenders (Vickrey, 1961)William Vickrey / Wikipedia
Zero-Sum vs Positive-Sum Games
"Von Neumann distinguished zero-sum games — where one player's gain is exactly another's loss — from positive-sum games where mutually beneficial moves exist, arguing that misclassifying a positive-sum situation as zero-sum is one of the costliest strategic errors."