Overconfidence is used to explain various instances of detrimental decision making. In behavioral economic and finance models, it is usually captured by misperceiving the reliability of signals and results in overweighting private information. Empirical tests of these models often fail to find...

We study the impact of sellers' reserve prices on transfer prices in online auctions of virtual football players at Hattrick.org. We introduce an empirical model that distinguishes between two separate effects from public reserve prices: (1) a mechanical effect, which is driven by the design of...