Agent causation

Agent causation, or Agent causality, is a category of determination in metaphysics, where a being who is not an event—namely an agent—can cause events (particularly the agent's own actions). Agent causation contrasts with event causation, which occurs when an event causes another event. Whether agent causation as a concept is logically sound is itself a topic of philosophical debate.

Defenders of this theory include Thomas Reid and Roderick Chisholm. Reid believed that agents are the only beings who have a will, and considered having a will to be a necessary condition of being considered the cause of an event.