Resumen: We analyse the performance and performance persistence of US socially responsible investment (SRI) managers from a managers’ perspective, differentiating between specialist managers (only running SRI mutual funds) and non-specialists (running SRI and conventional mutual funds). We find that the SRI fund nature has a significantly negative influence on the non-specialist performance. Furthermore, top managers of both groups persistently outperform SRI funds. However, non-specialist managers obtain superior performance to specialist managers, perhaps because of learning synergies in both fund niches. Results also show more persistence with non-specialists, especially with regard to conventional mutual funds. Idioma: Inglés DOI: 10.1016/j.ribaf.2020.101303 Año: 2020 Publicado en: RESEARCH IN INTERNATIONAL BUSINESS AND FINANCE 54 (2020), 101303 [13 pp.] ISSN: 0275-5319 Factor impacto JCR: 4.091 (2020) Categ. JCR: BUSINESS, FINANCE rank: 17 / 108 = 0.157 (2020) - Q1 - T1 Factor impacto SCIMAGO: 0.767 - Finance (Q1) - Business, Management and Accounting (miscellaneous) (Q1)