winner's curse: a standalone construct

The petroleum engineers E. C. Capen, R. V. Clapp, and W. M. Campbell named the winner's curse in 1971, working from oil companies' disappointing returns on competitively bid drilling leases. In a common-value auction, where the prize is worth roughly the same to everyone but its true value is unknown, each bidder submits an estimate, and the bidder who wins is typically the one whose estimate was the most optimistic, so the winning price tends to exceed the item's actual worth and the winner earns less than expected or takes a loss. Richard Thaler's 1988 review generalised the pattern beyond oil leases to any setting with common values and imperfect information, from corporate takeovers and free-agent sports contracts to classroom coin-jar auctions, and framed rational bidders' failure to shade their bids downward as a persistent behavioural anomaly. The construct is distinctive in tying a market outcome directly to the statistics of estimation error: it predicts that the more bidders compete and the noisier their information, the larger the expected overpayment, and the same selection logic has since been borrowed by statistical genetics to name the inflated effect sizes estimated for the variant that first crosses a significance threshold.[1][2]

Unit

A predicted gap between the winning bid and the item's true common value, expressed in money or in expected return

Recovery means

Not applicable

Measured by

Estimated by comparing winning bids or realised returns against the item's after-the-fact common value, using field data such as lease or auction returns and controlled common-value auction experiments