Actual Causation and Nondeterministic Causal Models

• URL: http://arxiv.org/abs/2503.07849v1
• Date: Mon, 10 Mar 2025 20:53:47 GMT
• Title: Actual Causation and Nondeterministic Causal Models
• Authors: Sander Beckers,
• Abstract summary: I take advantage of the increased expressivity offered by nondeterministic causal models to offer a novel definition of actual causation.<n>Although novel, the resulting definition arrives at verdicts that are almost identical to those of my previous definition.
• Score: 7.550566004119157
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In (Beckers, 2025) I introduced nondeterministic causal models as a generalization of Pearl's standard deterministic causal models. I here take advantage of the increased expressivity offered by these models to offer a novel definition of actual causation (that also applies to deterministic models). Instead of motivating the definition by way of (often subjective) intuitions about examples, I proceed by developing it based entirely on the unique function that it can fulfil in communicating and learning a causal model. First I generalize the more basic notion of counterfactual dependence, second I show how this notion has a vital role to play in the logic of causal discovery, third I introduce the notion of a structural simplification of a causal model, and lastly I bring both notions together in my definition of actual causation. Although novel, the resulting definition arrives at verdicts that are almost identical to those of my previous definition (Beckers, 2021, 2022).

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