 Ekstrom held that an agent is her preferences and acceptances (reflectively held beliefs), together with her faculty of forming these by reflective evaluation. When the formation of a preference is nondeterministically caused and it deterministically causes a decision and subsequent action, then a preference that partly constitutes the agent, one that is generated by an evaluative faculty that partly constitutes the agent, and one that the agent could have prevented (by not forming that preference) causally determines the decision and subsequent action. What the agent does is then, Ekstrom claimed, up to her.