文章基本信息

标题：Returns and volatility of water investments
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作者：Rajibur Reza ; Gurudeo Anand Tularam ; Bin Li 等
期刊名称：Cogent Economics & Finance
电子版ISSN：2332-2039
出版年度：2018
卷号：6
期号：1
页码：1438724
DOI：10.1080/23322039.2018.1438724
语种：English
出版社：Taylor and Francis Ltd
摘要：Abstract 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 Index (S&P), and MSCI ACWI Water Utilities Index (MSCI ACWI), the Asia, Europe, Latin America and US water markets, Pictet Global Water Fund (Pictet), and KBC Eco Water Fund (KBC Eco) for the period 2004–2014. In this study, the EGARCH (1, 1) model results suggest the existence of persistence of volatility from four water indices, four water markets and two water funds in different periods and asymmetric volatility (leverage) for Asia and US, S-Net and Pictet in full, pre-GFC and GFC periods and for WOWAX in GFC and post-GFC periods. The WOWAX is not highly correlated with water markets and water funds, which suggests that it may provide a possible opportunity for portfolio diversification in different periods.
关键词：water investments ; water indices ; water markets ; volatility