Agent-causal Theories Research Articles

Agent Causation, Realist Metaphysics of Powers, and the Reducibility Objection

To address what I call the “Uniformity”, “Capriciousness”, and “Reducibility” objections, recent agent-causation theories hold that agent-causation is a type of substance causation. Substance causation consists in substances producing effects by exercising or manifesting their powers. Importantly, these versions of agent-causation assume a realist metaphysics of powers, where powers are properties of substances that can exist unmanifested. However, the realist theories of powers that agent-causal theories have relied upon explicitly hold that powers—rather than their substances—are causes. Substances are merely derivative causes, as the bearers of powers. Critics therefore argue that agent-causation is reducible to causation by the agent’s powers. In this paper, I argue that agent-causation is reducible to causation by the agent’s powers only if powers are self-exemplifying properties. I also offer reasons for why powers—especially agent-causal powers—are non-self-exemplifying properties, in support of the irreducibility of agent-causation.

The Problem of Luck and the Contradictory Nature of Moral Responsibility in the Libertarian Accounts of Free Will

This paper aims to reveal the structural problem of libertarian accounts of free will. It is divided into three parts. In the first part, I formulate the main principles of libertarian accounts from the perspective of their values. I argue that there are two main understandings of autonomy that motivate libertarian project: causal-autonomy and substance-autonomy. Causal-autonomy refers to independency from the factors that are beyond the control of the agent. Substance-autonomy concerns the existence of the substance of self, which is self-sufficient and exercises control over a person’s behavior. I show that different strands of metaphysical libertarianism could be understood within the context of this distinction. Agent-causal theories emphasize the value of substance-autonomy as a necessary condition for causal-autonomy. Event-causal libertarianism considers causal-autonomy to be sufficient for genuine freedom of will. In the second part, I discuss different formulations of the problem of luck. I show the respective advantages of compatibilist position in the context of the problem of luck and sketch the main strategies of libertarian responses to this problem. Four versions of the problem of luck are discussed: rollback argument, promise argument, the problem of contrastive explanation of action and Hume’s statement of the problem of luck. In the third part, I develop Hume’s criticism of libertarianism making this criticism independent from Hume’s denial of the possibility of causal indeterminism. I argue that causal account of action both in event-causal theories and in agent-causal theories leads to contradictory intuitions about agent’s responsibility in indeterministic universe. My argument purports to show that attributions of moral responsibility for indetermined actions are not grounded because person is intuitively both responsible and not responsible for these actions.

Free Will and Mental Powers

In this paper, we investigate how contemporary metaphysics of powers can further an understanding of agent-causal theories of free will. The recent upsurge of such ontologies of powers and the understanding of causation it affords promises to demystify the notion of an agent-causal power. However, as we argue pace (Mumford and Anjum in Analysis 74:20–25, 2013; Am Philos Q 52:1–12, 2015a), the very ubiquity of powers also poses a challenge to understanding in what sense exercises of an agent’s power to act could still be free—neither determined by external circumstances, nor random, but self-determined. To overcome this challenge, we must understand what distinguishes the power to act from ordinary powers. We suggest this difference lies in its rational nature, and argue that existing agent-causal accounts (e.g., O’Connor in Libertarian views: dualist and agent-causal theories, Oxford University Press, Oxford, 2002; Lowe in Personal agency: the metaphysics of mind and action, Oxford University Press, Oxford, 2013) fail to capture the sense in which the power to act is rational. A proper understanding, we argue, requires us to combine the recent idea that the power to act is a ‘two-way power’ (e.g., Steward in A metaphysics for freedom, Oxford University Press, Oxford, 2012b; Lowe (in: Groff, Greco (eds) Powers and capacities in philosophy: the new aristotelianism, Routledge, New York, 2013) with the idea that it is intrinsically rational. We sketch the outlines of an original account that promises to do this. On this picture, what distinguishes the power to act is its special generality—the power to act, unlike ordinary powers, does not come with any one typical manifestation. We argue that this special generality can be understood to be a feature of the capacity to reason. Thus, we argue, an account of agent-causation that can further our understanding of free will requires us to recognize a specifically rational or mental variety of power.

Downward causation and supervenience: the non-reductionist’s extra argument for incompatibilism

Agent-causal theories of free will, which rely on a non-reductionist account of the agent, have traditionally been associated with libertarianism. However, some authors have recently argued in favor of compatibilist agent-causal accounts. In this essay, I will show that such accounts cannot avoid serious problems of implausibility or incoherence. A careful analysis of the implications of non-reductionist views of the agent (event-causal or agent-causal as they may be) reveals that such views necessarily imply either the denial of the principle of supervenience or the assumption of bottom-level indeterminism. I will contend that the former alternative comes at a high cost, while the latter is quite plausible. Therefore, providing that they accept the condition of the truth of indeterminism, non-reductionist accounts of the agent do not have to contradict our scientific worldview. Interestingly, while they should be taken seriously by anyone who is concerned with the passivity of the agent’s role under a reductionist scenario, non-reductivist accounts end up contributing an extra incompatibilist argument to the free will debate.

Thomas Reid on Active Power and Free Agency

The paper argues that it is a mistake to interpret Thomas Reid as holding a libertarian notion of freedom, and to make use of Reid to argue in support of a libertarian position. More precisely, this paper shows that Reid’s theory of agent-causation may not be what these philosophers take it to be, once such crucial notions as agent-causation and active power in Reid’s theory of free agency have been fully explicated. Reid is more committed to accepting the view of freedom as rational self-control over the determination of the will than a contracausal view of freedom.

Agent-causation and agential control

According to what I call the reductive standard-causal theory of agency, the exercise of an agent's power to act can be reduced to the causal efficacy of agent-involving mental states and events. According to a non-reductive agent-causal theory, an agent's power to act is irreducible and primitive. Agent-causal theories have been dismissed on the ground that they presuppose a very contentious notion of causation, namely substance-causation. In this paper I will assume, with the proponents of the agent-causal approach, that substance-causation is possible, as I will argue against that theory on the ground that it fails as a theory of agency. I will argue that the non-reductive agent-causal theory fails to account for agency, because it fails to account for agential control: it cannot explain why the stipulated irreducible relation between the agent and an action constitutes the agent's exercise of control over the action. This objection, I will argue, applies to the agent-causal theory in particular, and to the non-reductive approach in general.

Free Will in the Block Universe

Carl Hoefer has argued that determinism in block universes does not privilege any particular time slice as the fundamental determiner of other time slices. He concludes from this that our actions are free, insofar as they are pieces of time slices we may legitimately regard as fundamental determiners. However, I argue that Hoefer does not adequately deal with certain remaining problems. For one, there remain pervasive asymmetries in causation and the macroscopic efficacy of our actions. I suggest that what Hoefer may have shown us is that causation, not determinism, was the threat to free will all along. Additionally, Hoefer might avoid the problem of the asymmetry of macroscopic efficacy by noting we have a very small region of space-time completely determined by our choices. However, this move implies our freedom to act is freedom to do very little, given that the region is trivial. I suggest that Hoefer should instead claim that we do have pervasive macroscopic efficacy toward the past, though I am unsure of how well this thesis works. Regardless, there remains a problem that the inside-out perspective requires us to see our choices as brute facts or random occurrences. Attempts to resolve this problem seem to require either a theory of agent causation or a traditional compatibilist argument, making Hoefer’s thesis extraneous, unless he can show us that these require the inside-out perspective. However, Hoefer has not yet shown us this, so there is work to be done.

Agency Theory Reconsidered

In this article, we briefly outline and explain Roderick Chisholm's theory of agent causation, critically evaluate certain criticisms of it advanced by Harry Frankfurt, Clifford Williams and Irving Thalberg, and show that theory can be improved by elaborating it in two ways, one of which is suggested by work of Richard Taylor. Chisholm frames what he labels the metaphysical problem of human freedom as follows: