Abstract

The fundamental causal concept in Chisholm's theory of agency is that of causally contributing to, a generic concept covering both event-causal contributors and agent-causal contributors. Chisholm's elucidation of agent-causation is explored and defended against objections. It is then argued that Chisholm's ontology, in particular in its treatment of the concept of an evert, generates difficulties for his theory of agency oi which two are explored: that it is hard to reconcile with Chisholm's own apparent analysis of the distinction between intentional and unintentional actions; and that it entails that every causal contributing has an infinite set of causal contributors, which is in conflict with the principle that any set of nonredundant conditions that are jointly sufficient for the occurrence of an event are so by the nature of things, and not by virtue of some further event.