RT Article T1 Is Institutional Ownership Related to Corporate Social Responsibility? The Nonlinear Relation and Its Implication for Stock Return Volatility JF Journal of business ethics VO 146 IS 1 SP 77 OP 109 A1 Harjoto, Maretno A1 Jo, Hoje A1 Kim, Yongtae LA English PB Springer Science + Business Media B. V YR 2017 UL https://ixtheo.de/Record/1785662716 AB This study examines the relation between corporate social responsibility (CSR) and institutional investor ownership, and the impact of this relation on stock return volatility. We find that institutional ownership does not strictly increase or decrease in CSR; rather, institutional ownership is a concave function of CSR. This evidence suggests that institutional investors do not see CSR as strictly value-enhancing activities. Institutional investors adjust their percentage of ownership when CSR activities go beyond the perceived optimal level. Employing the path analysis, we also examine the mediating effect of institutional ownership on the relation between CSR and stock return volatility. We find that CSR decreases stock return volatility at a decreasing rate through its effect on institutional ownership. Our results remain robust under several different CSR measures and estimation methods. K1 Socially Responsible Investing K1 Stock return volatility K1 Institutional ownership K1 Corporate Social Responsibility DO 10.1007/s10551-015-2883-y