“…Several studies (e.g., Cao & Wei, 2005;Dowling & Lucey, 2008;Kamstra, Kramer, & Levi, 2003;Lu & Chou, 2012;Saunders, 1993) have attempted to investigate in depth the relations between stock market returns and current weather conditions. One of the empirical findings is the 'sunshine effect' -a negative correlation between cloudiness, as measured by cloud cover, and daily equity index returns (S.-C. Chang, Chen, Chou, & Lin, 2008;Hirshleifer & Shumway, 2003 ;Saunders, 1993). This sunshine effect in the New York Stock Exchange (NYSE), first found by Saunders (1993), was immediately noticed by the Wall Street.…”