This essay will canvass recent philosophical discussion of accounts of human (free) agency that deploy a notion of agent causation . Historically, many accounts have only hinted at the nature of agent causation by way of contrast with the causality exhibited by impersonal physical systems. Likewise, the numerous criticisms of agent causal theories have tended to be highly general, often amounting to no more that the bare assertion that the idea of agent causation is obscure or mysterious. But in the (...) past decade, detailed accounts of agent causation have been offered (chiefly by Randolph Clarke and Timothy O’Connor), and they have occasioned more specific objections in turn. These recent accounts and objections to them will be my primary focus in what follows. But first I will identify two distinct motivations that have been advanced for adopting an agent causal approach to human agency and the ontological and metaphysical commitments common to any version of this approach. (shrink)

In what follows, I shall presuppose the ecumenical core of the causal powers metaphysics. The argument of this paper concerns what may appear at first to be a wholly unrelated matter, the metaphysics of free will. However, an adequate account of freedom requires, in my judgment, a notion of a distinctive variety of causal power, one which tradition dubs ‘agent-causal power’. I will first develop this notion and clarify its relationship to other notions. I will then respond to a number (...) of objections either to the possibility of a power so explicated or to its sufficiency for grounding an adequate account of human freedom. (shrink)

Many proponents of libertarian freedom assume that the free choices we might make have particular objective probabilities of occurring. In this paper, I examine two common motivations for positing such probabilities: first, to account for the phenomenal character of decision-making, in which our reasons seem to have particular strengths to incline us to act, and second, to naturalize the role of reasons in influencing our decisions, such that they have a place in the causal order as we know it. I (...) argue, however, that neither introspective reflection nor the metaphysics of causation gives us reason for thinking there are such particular objective probabilities of our free choices. (shrink)

As good a definition as any of a _philosophical_ conundrum is a problem all of whose possible solutions are unsatisfactory. The problem of understanding the springs of action for morally responsible agents is commonly recognized to be such a problem. The origin, nature, and explanation of freely-willed actions puzzle us today as they did the ancients Greeks, and for much the same reasons. However, one can carry this ‘perennial-puzzle’ sentiment too far. The unsatisfactory nature of philosophical theories is a more (...) or less matter, and some of them have admitted of improvement over time. This, at any rate, is what we self-selecting metaphysicians tend to suppose, and I will pursue that high calling by suggesting a few improvements to a theory of metaphysical freedom, or freedom of the will. (shrink)