Parochial altruism: What it is and why it varies

The Sciences of Ethics and Political Philosophy Reading Group will get together on March 17, at 4 PM [WET], to discuss a paper by Anne Pisor (2024), Parochial altruism: What it is and why it varies. Evolution and Human Behaviour, 45(1), 2–12. This session will have the confirmed presence of the author.
Abstract
Parochial altruism (PA), or ingroup favoritism paired with outgroup hostility, is sometimes treated as a synonym for human intergroup relations. However, empirical data suggest that PA is highly variable—across individuals, across situations, and across groups. Here, we review theory and data on PA to explore the candidate sources for this variability. Along the way, we unpack assumptions (e.g., what constitutes a group?), identify precursors to PA behavior (e.g., context and internal states), and review evidence for the pairing of ingroup favoritism with outgroup hostility. We discuss phenomena with measurable impact on downstream behavior, including resource access and cultural institutions, but also flag how researcher expectations and methodological design impact reported variability in PA. We close by making recommendations for how researchers can reduce noise in the study of PA by checking assumptions and being deliberate in research design; this is key, as the PA literature is part of sensitive public discourse.
Anyone interested in participating can send an email to Filipe Faria: filipefaria@fcsh.unl.pt.
The Sciences of Ethics and Political Philosophy Reading Group is an international monthly-assembling online reading group co-hosted by the CFCUL and the Ethics and Political Philosophy Lab (EPLab) of the IFILNOVA. More information about the group here.