%0 Journal Article %@ 0165-1765 %A Armantier, Olivier %A Treich, Nicolas %D 2009 %F publications:2350 %I Elsevier %J Economics Letters %N 2 %P 83-85 %R 10.1016/j.econlet.2009.04.016 %T Star-Shaped Probability Weighting Functions and Overbidding in First-Price Auctions %U https://publications.ut-capitole.fr/id/eprint/2350/ %V 104 %X There is a debate about whether risk aversion is the main source of overbidding in a first-price independent private values auction. As an alternative, we adopt a non-expected utility framework, and identify an interpretable property on the probability weighting function which always induces overbidding.