6–9 Jul 2026
Europe/Warsaw timezone

Causal Inference with marginaleffects

7 Jul 2026, 11:55
5m
Lightning Talk (5 minutes) Lightning Talks

Speaker

Vincent Arel-Bundock (Université de Montréal)

Description

Policy debates, product decisions, and scientific claims all hinge on a simple question: what would happen to Y if we changed X? In this talk, I will present a practical causal inference workflow in R, using the marginaleffects package. This package offers a consistent interface for causal inference, and it is compatible with virtually all model-fitting packages in the R ecosystem. The key causal inference approach that we will focus on is called "G-computation," a flexible strategy that accommodates rich model specifications while producing estimates of easy-to-understand and useful quantities like the Average Treatment Effect, Average Treatment Effect on the Treated, or Conditional Average Treatment Effect. The talk includes brief, reproducible examples and emphasizes model-agnostic post-estimation tools that work with linear models, generalized linear models, and more flexible specifications. The audience will leave with a practical template for causal estimation and communication, plus a set of concise code patterns for common estimands.

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Keywords: Please list up to 5 keywords to help us find the right session for your contribution. causal inference, G-computation, marginaleffects, average treatment effect, counterfactuals
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Author

Vincent Arel-Bundock (Université de Montréal)

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