Barile, L., Cullis, J. and Jones, P. (2018) “Time Preference for Investment in the Environment: The Impact of Intrinsic Motivation”, Economic Issues, 23(2), pp. 31–56. Available at: http://www.economicissues.org.uk/index.php/EI_OJS/article/view/307 (Accessed: 28 August 2026).