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Proponents of manipulation arguments against compatibilism hold that manipulation scope (how many agents are manipulated) and manipulation type (whether the manipulator intends that an agent perform a particular action) do not impact judgments about free will and moral responsibility. Many opponents of manipulation arguments agree that manipulation scope has no impact but hold that manipulation type does. Recent work by Latham and Tierney (2022, 2023) found that people's judgments were sensitive to manipulation scope: people judged that an agent was less free and responsible when a manipulation was existential (impacting at least one but not all agents) than when the manipulation was universal (impacting every agent). This study examines people's judgements about existential and universal manipulation cases that involve both intentional and non‐intentional outcomes. We found that manipulation scope also affects people's free will and responsibility judgments in manipulation cases involving both intentional and non‐intentional outcomes. Interestingly, we also found that manipulation type influences the effect that manipulation scope has on people's free will judgments but not their moral responsibility judgments, which indicates that people's free will and responsibility judgments can come apart. This puts pressure on the prevalent assumption that judgments about free will and moral responsibility are conceptually bound together. [ABSTRACT FROM AUTHOR]

One debate surrounding Derk Pereboom's (2001, 2014) four-case argument against compatibilism focuses on whether, and why, we judge manipulated agents to be neither free nor morally responsible. In this paper, we propose a novel explanation. The four-case argument features cases where an agent is the only individual in her universe who has been manipulated. Let us call manipulation whose scope includes at least one but not all agents existential manipulation. Contrast this with universal manipulation, which affects all agents within a universe. We propose that we find agents in Pereboom's manipulation cases less free and morally responsible in part because they are the target of existential manipulation. We empirically tested this hypothesis and found that people's free will and moral responsibility judgments were sensitive to the scope of manipulation: people judged existentially manipulated agents significantly less free and responsible than universally manipulated agents. [ABSTRACT FROM AUTHOR]

In a recent essay, Deery and Nahmias (Philos Stud 174(5):1255–1276, 2017) utilize interventionism about causation to develop an account of causal sourcehood in order to defend compatibilism about free will and moral responsibility from manipulation arguments. In this paper, we criticize Deery and Nahmias's analysis of sourcehood by drawing a distinction between two forms of causal invariance that can come into conflict on their account. We conclude that any attempt to resolve this conflict will either result in counterintuitive attributions of moral responsibility or will undermine their response to manipulation arguments. [ABSTRACT FROM AUTHOR]

In the recent article 'A new approach to manipulation arguments,' Patrick Todd seeks to reframe a common incompatibilist form of argument often leveraged against compatibilist theories of moral responsibility. Known as manipulation arguments, these objections rely on cases in which agents, though they have met standard compatibilist conditions for responsibility, have been manipulated in such a way that they fail to be blameworthy for their behavior. Traditionally, in order to get a manipulation argument off the ground, an incompatibilist must illustrate that a manipulated agent is not at all responsible for her behavior. Todd argues that this is an unnecessarily heavy burden-the incompatibilist need only show that the presence of manipulation mitigates ascriptions of responsibility. Though innovative, Todd fails to present his modified manipulation argument in a way that poses a true threat to the compatibilist. In fact, by introducing a scalar conception of moral responsibility, Todd gives the compatibilist the tools necessary to better handle the incompatibilist's original manipulation argument. [ABSTRACT FROM AUTHOR]