Do stock prices drive people crazy?

This is the first research to examine a potential relation between stock market volatility and mental disorders. Using data on daily incidences of mental disorders in Taiwan over 4000 days from 1998 through 2009 to assess the timeseries relation between stock price movements and mental disorders, we...

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Veröffentlicht in:Health policy and planning 2015-03, Vol.30 (2), p.206-214
Hauptverfasser: Lin, Chung-Liang, Chen, Chin-Shyan, Liu, Tsai-Ching
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Sprache:eng
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Zusammenfassung:This is the first research to examine a potential relation between stock market volatility and mental disorders. Using data on daily incidences of mental disorders in Taiwan over 4000 days from 1998 through 2009 to assess the timeseries relation between stock price movements and mental disorders, we observe that stock price fluctuation clearly affects the hospitalization of mental disorders. We find that during a 12-year follow-up period, a low stock price index, a daily fall in the stock price index and consecutive daily falls in the stock price index are all associated with greater of mental disorders hospitalizations. A 1000-point fall in the TAIEX (Taiwan Stock Exchange Capitalization Weighted Stock Index) increases the number of daily mental disorders hospitalizations by 4.71%. A 1% fall in the TAIEX in one single day increases daily hospitalizations for mental disorders by 0.36%. When the stock price index falls one consecutive day, it causes a daily increase of approximately 0.32% hospitalizations due to mental disorders on that day. Stock price index is found to be significant for both gender and all age groups. In addition, daily change is significant for both gender and middle-age groups, whereas accumulated change is significant for males and people aged 45–64. Stockholdings can help people accumulate wealth, but they can also increase mental disorders hospitalizations. In other words, stock price fluctuations do drive people crazy. Ceci est la première étude qui analyse la relation possible entre la volatilité des marchés et les troubles mentaux. Nous avons estimé la relation temporelle entre la variation des cours boursiers et les troubles mentaux en utilisant des données portant sur la fréquence journalière des troubles mentaux à Taiwan sur une période de plus de 4000 jours entre 1998 et 2009, nous avons observé que les fluctuations boursières pèsent clairement sur les hospitalisations pour troubles mentaux. Nous avons remarqué que, durant une période de suivi de douze ans, un indice boursier bas, la baisse d’un indice et les baisses consécutives d’un indice sont tous associés à un plus grand nombre d’hospitalisations pour troubles mentaux. Une chute de 1000 points de base de l’indice TAIEX (Bourse d’action Taiwanaise) entraine une augmentation de 4,71% du nombre d’hospitalisations journalières pour troubles mentaux. Une baisse de 1% du TAIEX en une seule séance entraine une augmentation d’environ 0,36% des hospitalisations pour troubles ment
ISSN:0268-1080
1460-2237
DOI:10.1093/heapol/czu007