RT Journal Article T1 Blue horizons: factor analysis of water and clean energy equity portfolios A1 Tudor, Cristian A1 Vlachos, Vasileios A1 Stamatiou, Pavlos A1 Villalba-Romero, Felix K1 Recursos naturales - Aspectos económicos K1 Activos financieros AB This paper aims to assess the financial performance of diverse sustainable blue economy activities represented by ETF portfolios and evaluate whether blue firms based on natural resources, mainly water behave compared with clean energy firms and in contrast to a broad-market benchmark.The results show how blue economy water-related investments are more profitable, less volatile and follow more conservative investment policies than renewable energy investments. Findings also suggest a preference for value-driven firms within water related industries, while clean energy firms are often growth-oriented. This confirms that the blue economy firms should be preferred to clean energy firms, within the investment portfolios following a binomial risk-return strategies. PB Emerald YR 2026 FD 2026-01-20 LK https://hdl.handle.net/10630/45911 UL https://hdl.handle.net/10630/45911 LA eng NO Tudor, C., Vlachos, V., Stamatiou, P., & Villalba-Romero, F. (2026). Blue horizons: factor analysis of water and clean energy equity portfolios. Review of Accounting and Finance, 1-31. NO Blue economy stocks are increasingly gathering the interest of investors which follow a risk-return strategy but also include sustainable development principles in their investment decisions. The findings have important implications for various takeholders, including banks, portfolio managers, investors and policymakers. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 mar 2026