e Research & Publications — Benjamin Lange

My research develops the normative structure of relationships

I work on the special relationship between agents—the relationships that generate special reasons not derivable from impartial morality. I pursue this question in two domains: relationships between human agents, and the emerging relationships between humans and artificial agents. I take practical ethics to require both philosophical rigour and operational usefulness, and I aim to do work that meets both standards.

The first strand is the ethics of partiality. I examine when special concern for particular others is justified, the asymmetries between positive and negative ties— friendship and enmity— and the limits morality places on partial action. A monograph developing a systematic theory of justified negative partiality, The Ethics of Enmity, is in preparation.

The second strand is the ethics of AI. As humans enter sustained interactions with conversational systems, autonomous agents, and AI assistants, the central normative questions concern the structure of those interactions: when epistemic deference is warranted, who bears accountability when things go wrong, what licenses unilateral revision of an AI relationship, and how designers shape the moral environment of users. This work draws on seven years of applied collaboration with Google's research and engineering teams.

A third, cross-cutting strand concerns the practical role of ethics inside organizations. Here I examinhow firms build genuine ethical capabilities, and what ethicists can contribute to industry without collapsing into compliance.