van der Pol, M; Cairns, J; (2002) A comparison of the discounted utility model and hyperbolic discounting models in the case of social and private intertemporal preferences for health. Journal of economic behavior & organization, 49 (1). pp. 79-96. ISSN 0167-2681 DOI: https://doi.org/10.1016/S0167-2681(02)00059-8 Full text not available from this repository.