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A review of the seasonal affective disorder hypothesis

Stephen Keef and Mohammed Khaled (mohammed.khaled@vuw.ac.nz)

Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), 2011, vol. 40, issue 6, 959-967

Abstract: This review of the SAD hypothesis of Kamstra et al. (2003), hereafter KKL (2003), isolates four new problems. First, the KKL (2003) statistical model does not test the KKL (2003) SAD hypothesis. Second, KKL (2003) do not properly interpret their results. Third, KKL (2003) incorrectly specify the sign of the SAD effect in the winter. The revised SAD hypothesis is that hours of night have a negative influence on stock returns in the fall and in the winter. Fourth, the statistical tests do not support either the KKL (2003) hypothesis or the revised SAD hypothesis.

Keywords: Seasonal affective disorder (SAD); International; Stock returns; Seasonality (search for similar items in EconPapers)
JEL-codes: G10 G11 G12 (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:soceco:v:40:y:2011:i:6:p:959-967

DOI: 10.1016/j.socec.2011.08.012

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