X-Message-Number: 30720 From: David Stodolsky <> Subject: Fully rational price-setting Date: Sun, 27 Apr 2008 22:11:50 +0200 http://heuristics.behaviouralfinance.net/affect/ "Psychological evidence and casual intuition predict that sunny weather is associated with upbeat mood. This paper examines the relation between morning sunshine at a country s leading stock exchange and market index stock returns that day at 26 stock exchanges internationally from 1982-97. Sunshine is strongly significantly correlated with daily stock returns. After controlling for sunshine, rain and snow are unrelated to returns. There were positive net-of- transaction costs profits to be made from substantial use of weather- based strategies, but the magnitude of the gains was fairly modest. These findings are diffcult to reconcile with fully rational price- setting." Hirshleifer and Shumway (2001) David Stodolsky Skype: davidstodolsky Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=30720