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This study analyzes the stock returns and volatility of the global water industry in different (full, pre-GFC, GFC and post-GFC) periods. The study estimates ARMA (1, 1)-GARCH (1, 1) and EGARCH (1, 1) models on the World Water index (WOWAX), S-Network Global Water Index (S-Net), S&P Global Water...
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Campbell, Lettau, Malkiel and Xu (2001) document that firms' stock returns have become more volatile in the U.S. since 1960. We hypothesize and find that deteriorating earnings quality is associated with higher idiosyncratic return volatility over 1962-2001. These results are robust to...
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