How Does the Value of Investing in Australian Water Entitlements Compare to Other Investments Over Time?

ABSTRACT Water markets are widely recognised for enhancing the efficient use and redistribution of water, with the southern Murray‐Darling Basin (MDB) in Australia considered the most advanced water market worldwide. This study applies a Dynamic Conditional Correlation Generalised Autoregressive Conditional Heteroskedasticity (DCC‐GARCH) model to provide a long‐run assessment of MDB water entitlements as financial assets, evaluating their value, hedging capacity and safe‐haven potential relative to national investment portfolios. We use monthly water trade data (from 1993 to 2025) from one of the longest operating irrigation water areas in the MDB, the Goulburn‐Murray Irrigation District. Investing in permanent water entitlements over this time period exhibited strong returns of around 20%, surpassing, on average, the Australian stock market and real estate investment options, although these returns fluctuate in line with various cycles. The results suggest that water entitlements act as a hedge against equity, forex and urban real estate markets, with this hedging role strengthening markedly after the 2007 water unbundling reform. Water entitlements also provide safe‐haven benefits to owners during financial market turmoil, particularly compared to the stock market. The findings are consistent with the existing literature, indicating that the Australian water market is becoming more liquid, more widely used and increasingly heterogeneous.