Correlations for number of sunspots, unemployment rate, and suicide mortality in Japan |
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Authors: | Otsu Akiko Chinami Masanobu Morgenthale Stephan Kaneko Yoshihiro Fujita Daisuke Shirakawa Taro |
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Affiliation: | Department of Health Promotion and Human Behavior, Graduate School of Public Health, Kyoto University, Japan. otsu-tky@umin.ac.jp |
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Abstract: | We studied the correlations among sunspot numbers, business cycles, and suicide mortalitites. Based on data from Japan between 1971 and 2001, a significant negative correlation between sunspot numbers and unemployment rate was found, R= -.17. The correlation between suicide mortality and unemployment rate was positive for males (R=.46) and negative for females (R =-.69). Both are statistically significant. The hypothesis that variation of sun activity may affect the economy and the unemployment rate and hence increase the male suicide mortality is raised. |
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