Sentiment and stock prices: The case of aviation disasters

Guy Kaplanski and Haim Levy

Journal of Financial Economics, 2010, vol. 95, issue 2, 174-201

Abstract: Behavioral economic studies reveal that negative sentiment driven by bad mood and anxiety affects investment decisions and may hence affect asset pricing. In this study we examine the effect of aviation disasters on stock prices. We find evidence of a significant negative event effect with an average market loss of more than $60 billion per aviation disaster, whereas the estimated actual loss is no more than $1 billion. In two days a price reversal occurs. We find the effect to be greater in small and riskier stocks and in firms belonging to less stable industries. This event effect is also accompanied by an increase in the perceived risk: implied volatility increases after aviation disasters without an increase in actual volatility.

Keywords: Event; effect; Reversal; effect; Market; sentiment; Behavioral; finance; Disasters (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (218)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jfinec:v:95:y:2010:i:2:p:174-201

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