Financial Markets where Traders Neglect the Informational Content of Prices

Publication Date
Financial Markets Group Discussion Papers DP 770
Publication Date
Paul Woolley Centre Discussion Papers No 58
Publication Authors

We present a model of a financial market where some traders are “cursed” when investing in a risky asset, failing to fully appreciate what prices convey about others’ private information. Markets comprising cursed traders generate more trade than those comprising rationals; mixed markets can generate even more trade because rationals exploit return predictability caused by cursed. Per-trader volume in cursed markets increases with market size; volume may instead disappear when traders infer others’ information from prices but dismiss it as noisier than their own. Public-information revelation raises rational and“dismissive” volume, but lowers cursed volume given moderate non-informational trading motives.