PurposeThe literature on the drivers affecting retail investor preferences towards socially responsible investments (SRIs) has increased significantly over recent years, revealing several influencing factors. Given the wide variety and ambiguity of the available evidence, the purpose of this paper is to analyse the existing literature on this topic and develop a new unified approach to study this phenomenon.Design/methodology/approachWe conducted a systematic literature review, followed by a research profile analysis and a thematic analysis, which uncovered four major emerging foci: the research outcome type, the external environment, sociodemographic characteristics and the internal dimension of retail investors.FindingsOur analysis revealed that studies investigating investor preferences often neglected to consider the concurring influence of multiple perspectives. In fact, we observed how the literature has not yet adequately addressed the mediating and moderating effects of the various factors that determine retail investor decisions regarding SRI.Research limitations/implicationsIn response to these shortfalls, we propose a new integrated conceptual framework that may inspire scholars to conduct further studies to refine our understanding of investor preferences towards SRI.Practical implicationsThis framework offers some suggestions on how to expand future research and underline some managerial and policy interventions aimed at developing the retail demand for these products.Originality/valueTo our knowledge, this is the first study to perform a systematic review on the drivers of SRIs, elaborating a new conceptual framework to understand the dynamics of retail investor sustainable preferences.