Most discussions of fiduciary duty focus on medical decision-making, but that is not the only context in which the concept is important. Investment advisers have fiduciary duties to their clients: in this essay, we address those duties. Many advisers refuse to help their clients with ‘socially responsible’ investment plans, for a variety of reasons, among which are fiduciary concerns. We argue that the reasons generally given not to pursue a religious, environmental, or social investment strategy are mistaken, and, most importantly, (...) that an investment adviser’s fiduciary duties may be met while providing such alternatives to clients. (shrink)