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29Individualism and Holism in Social OntologyIn Stephanie Collins, Brian Epstein, Sally Haslanger & Hans B. Schmid (eds.), Oxford Handbook of Social Ontology, Oxford University Press. pp. 233-254. 2026.Our aim in this chapter is to clarify individualism in social ontology and to consider different ways of construing or interpreting it, rather than to argue for one claim or another. Section 13.1 provides an introduction. Section 13.2 distinguishes three often-conflated doctrines—ontological, methodological, and causal individualism—and clarifies how they can come apart. onflated13.3 develops the dominant two-domain template for ontological individualism, analyzing disputes over what belongs in …Read more
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67The Iterated Social Construction of WordsGrazer Philosophische Studien 103 (1-2): 181-211. 2026.When is a mark or sound a token of a word? There is no once-and-for-all answer: word tokening is iteratively socially constructed, so the conditions for tokening a word can shift across socio-technical regimes. I first argue that word-tokening’s messy boundaries have a distinctive temporal structure I call initiated: initiation is relatively demanding, maintenance more permissive, exit difficult. Word-token kinds are initiated proxy kinds: anchored as stable, low-cost proxies that play a functio…Read more
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226Supervenience and Boolean ReductionPhilosophy and Phenomenological Research 113 (1). 2026.In this paper, we develop a novel framework for analyzing and comparing different varieties of supervenience. We introduce a new two-dimensional family of metaphysical determination relations, which we call “Boolean reducibility relations,” and show that many varieties of supervenience—including strong and weak individual supervenience, strong and weak modal operator supervenience, and strong global supervenience—are mathematically equivalent to specific Boolean reducibility relations. With this…Read more
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1464Social OntologyCambridge University Press. 2025.Social ontology is the study of the nature of the social world. This Element aims to provide an overview of this burgeoning field, and also to map the questions that theories in social ontology address. When we encounter a theory of some social thing – groups, law, gender, and so on –how are we to read it? What classes of theories have been explored and abandoned, and what classes are new and promising? The Element distinguishes theories of social construction from theories that characterize the…Read more
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73A Framework of Social OntologyRUDN Journal of Philosophy 26 (3): 582-598. 2022.The research sets out an organizing framework for the field of social ontology, the study of the of the nature of the social world. Social ontology is also gaining prominence in traditional philosophical discussions. The subject matter of social ontology is clarified, in particular the difference between it and the study of causal relations and the explanation of social phenomena. For any social fact, there are two distinct ontological questions: what is the ground for that fact, why is that fac…Read more
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1200Why group mental states are not exhaustively determined by member statesPhilosophical Issues 32 (1): 417-433. 2022.With few exceptions, theorists analyze group attitudes in terms of the attitudes of members. In Epstein 2015, 2019a, 2019b, I argued that this thesis (which I call "MEMBERS ONLY")—and hence any theory that analyzes group attitudes in terms of member attitudes—is mistaken: the attitudes of many groups are ontologically determined by a broader range of factors than member attitudes. My aim in the present paper is to consider new arguments against MEMBERS ONLY. I argue that arguments based on the "…Read more
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1322Biko on non-white and black: improving social realityIn George Hull (ed.), Debating African Philosophy: Perspectives on Identity, Decolonial Ethics and Comparative Philosophy, Routledge. pp. 97-117. 2018.This paper examines Steve Biko’s distinction between black and non-white as a project in the “amelioration” of social concepts and categories. Biko himself—it has been persuasively argued by Mabogo More and Lewis Gordon—writes in the tradition of existential phenomenology. More and Gordon explore Biko’s continuity with Frantz Fanon, and in this paper I draw on their interpretations, attempting to complement and elaborate on these continuities. I also, however, attempt to show how Biko moves beyo…Read more
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1729Anchoring versus Grounding: Reply to SchafferPhilosophy and Phenomenological Research 99 (3): 768-781. 2019.In his insightful and challenging paper, Jonathan Schaffer argues against a distinction I make in The Ant Trap (Epstein 2015) and related articles. I argue that in addition to the widely discussed “grounding” relation, there is a different kind of metaphysical determination I name “anchoring.” Grounding and anchoring are distinct, and both need to be a part of full explanations of how facts are metaphysically determined. Schaffer argues instead that anchoring is a species of grounding. The cru…Read more
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1111The SAGE Handbook of the Philosophy of Social Sciences, edited by Ian Jarvie and Jesús Zamora-Bonilla. SAGE Publications, 2011, xvii + 749 pagesEconomics and Philosophy 28 (3): 428-435. 2012.Book Reviews Brian Epstein, Economics and Philosophy, FirstView Article
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203Collective Responsibility and Social OntologyThe Monist 102 (2): 131-133. 2019.The study of responsibility in ethics focuses on the nature of agency, accountability, blame, punishment and, crucially, the distribution of responsibility for complex ethical problems. Work in social ontology examines the nature of entities such as groups, organizations, corporations, and institutions, and what it is for these entities to have intentional states and to act. Until recently, these fields of research have mostly been treated separately. The goal of this issue is to examine emergin…Read more
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217Replies to Hawley, Mikkola, and HindriksInquiry: An Interdisciplinary Journal of Philosophy 62 (2): 230-246. 2019.
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736Social OntologyStanford Encyclopedia of Philosophy. 2018.Social ontology is the study of the nature and properties of the social world. It is concerned with analyzing the various entities in the world that arise from social interaction. A prominent topic in social ontology is the analysis of social groups. Do social groups exist at all? If so, what sorts of entities are they, and how are they created? Is a social group distinct from the collection of people who are its members, and if so, how is it different? What sorts of properties do social groups …Read more
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191Précis of The Ant TrapJournal of Social Ontology 2 (1): 125-134. 2016.This article summarizes The Ant Trap: Rebuilding the Foundations of the Social Sciences. The book develops a new model for social ontology, applies it to groups and collective intentionality, and criticizes various forms of individualism. Part One of the book presents two traditional approaches to social ontology and unifies them into the “grounding–anchoring model” for the building of the social world. Part Two shows that individualism is mistaken even for basic facts about groups of people, ch…Read more
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93Replies to Guala and GallottiJournal of Social Ontology 2 (1): 159-172. 2016.This article responds to comments by Francesco Guala and Mattia Gallotti on The Ant Trap. In the replies, I address the relation of new advances in cognitive science to the study of collective attitudes, clarify distinct questions we might ask about grounding and about anchoring in social ontology, defend various forms of pluralism about grounds and about anchors, and discuss the type-token distinction as it applies to social entities.
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2183What are social groups? Their metaphysics and how to classify themSynthese 196 (12): 4899-4932. 2017.This paper presents a systematic approach for analyzing and explaining the nature of social groups. I argue against prominent views that attempt to unify all social groups or to divide them into simple typologies. Instead I argue that social groups are enormously diverse, but show how we can investigate their natures nonetheless. I analyze social groups from a bottom-up perspective, constructing profiles of the metaphysical features of groups of specific kinds. We can characterize any given kind…Read more
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1776Social Objects Without IntentionsIn Anita Konzelmann Ziv & Hans Bernhard Schmid (eds.), Institutions, Emotions, and Group Agents: Contributions to Social Ontology, Imprint: Springer. pp. 53-68. 2014.It is often seen as a truism that social objects and facts are the product of human intentions. I argue that the role of intentions in social ontology is commonly overestimated. I introduce a distinction that is implicit in much discussion of social ontology, but is often overlooked: between a social entity’s “grounds” and its “anchors.” For both, I argue that intentions, either individual or collective, are less essential than many theorists have assumed. Instead, I propose a more worldly –…Read more
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1084Grounds, Convention, and the Metaphysics of Linguistic TokensCroatian Journal of Philosophy 9 (1): 45-67. 2009.My aim in this paper is to discuss a metaphysical framework within which to understand “standard linguistic entities” (SLEs), such as words, sentences, phonemes, and other entities routinely employed in linguistic theory. In doing so, I aim to defuse certain kinds of skepticism, challenge convention-based accounts of SLEs, and present a series of distinctions for better understanding what the various accounts of SLEs do and do not accomplish.
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1031The Internal and the External in Linguistic ExplanationCroatian Journal of Philosophy 8 (22): 77-111. 2008.Chomsky and others have denied the relevance of external linguistic entities, such as E-languages, to linguistic explanation, and have questioned their coherence altogether. I discuss a new approach to understanding the nature of linguistic entities, focusing in particular on making sense of the varieties of kinds of “words” that are employed in linguistic theorizing. This treatment of linguistic entities in general is applied to constructing an understanding of external linguistic entities.
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991Review of Millikan, Ruth Garrett, Language: A Biological Model (review)Notre Dame Philosophical Reviews 2006 (5). 2006.Ruth Millikan is one of the most interesting and influential philosophers alive. Her work is also hard to penetrate. In this review, I try to present and assess her work on the nature of language, which is collected in this anthology. I also criticize her analysis of “natural convention” as well as her discussion of illocutionary acts.
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3309What is Individualism in Social Ontology? Ontological Individualism vs. Anchor IndividualismIn Julie Zahle & Finn Collin (eds.), Rethinking the Individualism-Holism Debate, Springer. 2014.Individualists about social ontology hold that social facts are “built out of” facts about individuals. In this paper, I argue that there are two distinct kinds of individualism about social ontology, two different ways individual people might be the metaphysical “builders” of the social world. The familiar kind is ontological individualism. This is the thesis that social facts supervene on, or are exhaustively grounded by, facts about individual people. What I call anchor individualism is the a…Read more
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1Simple Words and Subtle Things: Social Kinds and the Making of ReferenceDissertation, Stanford University. 2004.It seems to be a fact about language that people carry on competent and intelligent conversations, day to day, without being able to explain the words they're using. People don't have definitions, even tacit ones, for their words. This is possible in part because language users live in a social network, relying on one another as well as the structure of the world, which takes the burden of definition off the shoulders of the ordinary language user. ;Still, even simple words in fact stand for ext…Read more
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1414History and the critique of social conceptsPhilosophy of the Social Sciences 40 (1): 3-29. 2010.Many theorists, including Nietzsche, Adorno, and Foucault, have regarded genealogy as an important technique for social criticism. But it has been unclear how genealogy can go beyond the accomplishments of other, more mundane, critical methods. I propose a new approach to understanding the critical potential of history. I argue that theorists have been misled by the assumption that if a claim is deserving of criticism, it is because the claim is false. Turning to the criticism of concepts rather…Read more
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193The perils of tweaking: how to use macrodata to set parameters in complex simulation modelsSynthese 190 (2): 203-218. 2013.When can macroscopic data about a system be used to set parameters in a microfoundational simulation? We examine the epistemic viability of tweaking parameter values to generate a better fit between the outcome of a simulation and the available observational data. We restrict our focus to microfoundational simulations—those simulations that attempt to replicate the macrobehavior of a target system by modeling interactions between microentities. We argue that tweaking can be effective but that th…Read more
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890Review of Creations of the Mind, ed. Margolis and Laurence (review)Mind 121 (481): 200-204. 2012.This fascinating collection on artifacts brings together seven papers by philosophers with nine by psychologists, biologists, and an archaeologist. The psychological papers include two excellent discussions of empirical work on the mental representation of artifact concepts – an assessment by Malt and Sloman of a large variety of studies on the conflicting ways we classify artifacts and extend our applications of artifact categories to new cases, and a review by Mahon and Caramazza of data from …Read more
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355A Framework for Social OntologyPhilosophy of the Social Sciences 46 (2): 147-167. 2015.This paper sets out an organizing framework for the field of social ontology, the study of the nature of the social world. The subject matter of social ontology is clarified, in particular the difference between it and the study of causal relations and the explanation of social phenomena. Two different inquiries are defined and explained: the study of the grounding of social facts, and the study of how social categories are “anchored” or set up. The distinction between these inquiries is used to…Read more
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842When local models failPhilosophy of the Social Sciences 38 (1): 3-24. 2008.Models treating the simple properties of social groups have a common shortcoming. Typically, they focus on the local properties of group members and the features of the world with which group members interact. I consider economic models of bureaucratic corruption, to show that (a) simple properties of groups are often constituted by the properties of the wider population, and (b) even sophisticated models are commonly inadequate to account for many simple social properties. Adequate models and s…Read more
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3344The Ant Trap: Rebuilding the Foundations of the Social SciencesOxford University Press. 2015.We live in a world of crowds and corporations, artworks and artifacts, legislatures and languages, money and markets. These are all social objects — they are made, at least in part, by people and by communities. But what exactly are these things? How are they made, and what is the role of people in making them? In The Ant Trap, Brian Epstein rewrites our understanding of the nature of the social world and the foundations of the social sciences. Epstein explains and challenges the three prevaili…Read more
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1850How Many Kinds of Glue Hold the Social World TogetherIn Mattia Gallotti & John Michael (eds.), Perspectives on Social Ontology and Social Cognition, Springer. 2014.In recent years, theorists have debated how we introduce new social objects and kinds into the world. Searle, for instance, proposes that they are introduced by collective acceptance of a constitutive rule; Millikan and Elder that they are the products of reproduction processes; Thomasson that they result from creator intentions and subsequent intentional reproduction; and so on. In this chapter, I argue against the idea that there is a single generic method or set of requirements for doing so. …Read more
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1150The realpolitik of referencePacific Philosophical Quarterly 89 (1). 2008.What are the conditions for fixing the reference of a proper name? Debate on this point has recently been rekindled by Scott Soames, Robin Jeshion, and others. In this paper, I sketch a new pragmatic approach to the justification of reference-fixing procedures, in opposition to accounts that insist on an invariant set of conditions for fixing reference across environments and linguistic communities. Comparing reference to other relations whose instances are introduced through "initiation" proced…Read more
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Areas of Specialization
| Metaphysics |
| Philosophy of Language |
| Philosophy of Social Science |