Morality, Friendship, and Collective Action


  • Javier Gomez-Lavin Purdue University
  • Matthew Rachar Douglas College



collective action, joint action, Michael Bratman, Margaret Gilbert, experimental philosophy, friendship, morality


This paper uses the tools of experimental philosophy to examine the nature of interpersonal normativity in collective action, focusing on cases of immoral collective action and collective action by friends. The results of our two studies, which expand on recent empirical interventions into longstanding debates in social ontology, demonstrate that according to our everyday judgments there are interpersonal obligations in cases of collective action, even when immoral, and that, while friendship elicits judgments of togetherness, it does not affect the norms of collective action. We also situate these results in the philosophical literature and discuss their consequences for a “pluralism” about sociality.


Alonso, F (2009). “Shared Intention, Reliance, and Interpersonal Obligations”. Ethics 119(3), pp. 444–475. DOI:

Alonso, F (2016). “A Dual Aspect Theory of Shared Intention”. Journal of Social Ontology 2(2), pp. 271–302. DOI:

Annis, D (1987). “The Meaning, Value, and Duties of Friendship”. American Philosophical Quarterly 24, pp. 349–356.

Aristotle (2014). Nicomachean Ethics. Translated by and edited by Roger Crisp. Cambridge University Press.

Asarnow, Samuel (2020). “Shared Agency without Shared Intention”. Philosophical Quarterly 70(281), pp. 665–688. DOI:

Bratman, M (2006). “Dynamics of Sociality”. Midwest Studies in Philosophy 30(1), pp. 1–15. DOI:

Bratman, M (2014). Shared Agency: A Planning Theory of Acting Together. Oxford: Oxford University Press. DOI:

Bratman, M E (2009). “Modest Sociality and the Distinctiveness of Intention”. Philosophical Studies 144, pp. 149–165. DOI:

Cova, F, A Lantian, and J Boudesseul (2016). “Can the Knobe Effect Be Explained Away? Methodological Controversies in the Study of the Relationship between Intentionality and Morality”. Personality and Social Psychology Bulletin 42(10), pp. 1295–1308. DOI:

Gilbert (2009). “Shared Intention and Personal Intention”. Philosophical Studies 144, pp. 167–187. DOI:

Gilbert, M (1990). “Walking Together: A Paradigmatic Social Phenomenon”. Midwest Studies in Philosophy 15, pp. 1–14. DOI:

Gilbert, M (2006). A Theory of Political Obligation: Membership, Commitment, and the Bonds of Society. Oxford: Oxford University Press. DOI:

Gilbert, M (2013). Joint Commitment: How We Make the Social World. Oxford: Oxford University Press.DOI:

Gomez-Lavin, J and M Rachar (2019). “Normativity in Joint Action”. Mind & Language 34(1), pp. 97–120. DOI:

Gomez-Lavin, J and M Rachar(2022). “Why We Need a New Normativism about Collective Action”. The Philosophical Quarterly 72(2), pp. 478–507. DOI:

Gomez-Lavin, J and M Rachar(2023). “Response to Löhr: Why We Still Need a New Normativism”. The Philosophical Quarterly 73(4), pp. 1067–1076. DOI:

Helm, B (2008). “Plural Agents”. Noûs 42(1), pp. 17–49. DOI:

Homer (1987). The Illiad. Translated by M. Hammond. New York: Penguin Books.

Knoblich, G, S Butterfill, and N Sebanz (2011). “Psychological Research on Joint Action: Theory and Data”. Psychology of Learning and Motivation 54, pp. 59–101. DOI:

Löhr, G (2022). “Recent Experimental Philosophy on Joint Action: Do We Need a New Normativism about Collective Action?” Philosophical Quarterly 72(3), pp. 754–762. DOI:

Ludwig, Kirk (2016). From Individual to Plural Agency. Collective Action: Volume 1. Oxford University Press.

Michael, John and Stephen Butterfill (2022). “Intuitions about joint commitment”. Philosophical Psychology. DOI:

Owens, D (2012). Shaping the Normative Landscape. Oxford University Press. DOI:

Rachar, M (2021). “Quasi-Psychologism about Collective Intention”. Ethical Theory and Moral Practice 24, pp. 475–488. DOI:

Rachar, M (2023). “Conditional Intentions and Shared Agency”. Noûs 58(1), pp. 271–288. DOI:

Searle, J (1990). “Collective Intentions and Actions”. In: Intentions in Communication. Ed. by P. Cohen, J. Morgan, and M. E. Pollack. Cambridge, MA: Bradford Books/MIT Press, pp. 401–415.




How to Cite

Gomez-Lavin, Javier, and Matthew Rachar. 2024. “Morality, Friendship, and Collective Action”. Journal of Social Ontology 10 (1). Vienna, Austria:1-45.