Raimo Tuomela

(1940 - 2020)

The paper is a response to some critical points and omissions in John Wettersten’s review of my recent book The Philosophy of Sociality: The Shared Point of View (Oxford University Press, 2007). I point out in this short paper that the reviewer has not discussed the most central notions in the book relating to its "we-mode" approach, i.e. collective acceptance, group reasons, the collectivity condition, collective commitment and their role in accounting for e.g. cooperation, social institutions, cultural evolution. I also clarify the ontological commitments of my broadly naturalistic approach and show e.g. that we-mode social groups do exist as social systems but not a full-blown collective agents, although it is conceptually and instrumentally central to view them as collective agents. Also questions of we-mode versus I-mode explanations of collective action are considered in the paper

1. One of the main aims of this paper is to study the possibilities for free-riding type of behavior in various kinds of many-person interaction situations. In particular it will be of interest to see what kinds of game-theoretic structures, defined in terms of the participants' outcome-preferences, can be involved in cases of free-riding. I shall also be interested in the related problem or dilemma of collective action in a somewhat broader sense. By the dilemma of collective action I mean, generally speaking, the conflict between individual and collective rationality and the conflict between corresponding actions, in the sense it has been discussed in recent literature. Typically (although not invariably) collective action problems and free-rider problems coexist. Let me start my discussion by considering what Elster (1985) has to say about the subject. First, the notion of collective action itself should be characterized. Elster defines it as follows (p. 137): "By collective action I mean the choice by all or most individuals of the course of action that, when chosen by all or most individuals, leads to the collectively best outcome." While this characterization is informative in the present context, I think that it is not appropriate as a general characterization. It may provide a sufficient condition, but it fails as a necessary condition. One reason for this is that there may not be a single collectively best outcome at all. Instead, I suggest we follow common sense and take collective action simply to be action by a collection or group of people, where these people (or at least many of them) act with the aim of achieving a common end or goal (this notion understood very broadly so as to include e.g. following norms, practices, and customs). We also require of a situation of collective action that the participants have several (or at least two) possible courses of action open to them. Elster's above definition of collective action goes in terms of the collectively best outcome or goal.

The paper discussed and analyzes collective and joint intentions of various strength. Thus there are subjectively shared collective intentions and intersubjectively shared collective intentions as well as collective intentions which are objectively and intersubjectively shared. The distinction between collective and private intentions is considered from several points of view. Especially, it is emphasized that collective intentions in the full sense are in the “we-mode”, whereas private intentions are in the “I-mode”. The paper also surveys recent discussion in the literature concerning the nature of collective and joint intention and defends the author's accounts against criticisms

The paper gives a conceptual clarification of what the notion of a part of a joint action (project, etc;) involves. The - mutually recognized - division of a joint action into parts can be based on social norms (viz. formal or informal rules, or proper social norms such as conventions or group specific social norms) or it can be based on agreement, coercion, or some analogous social mechanism. The paper also discusses the notions of a we-intention, of the intention to perform an action as one’s part of a joint action, and of an agent’s intentionally performing an action as his part of a joint action.

This is a systematic philosophical and conceptual study of the notion of a social practice. Raimo Tuomela explains social practices in terms of the interlocking mental states of the agents; he shows how social practices are 'building blocks of society'; and he offers a clear and powerful account of the way in which social institutions are constructed from these building blocks as established, interconnected sets of social practices with a special new social status. His analysis is based on the novel concept of shared 'we-attitudes', which represent a weak form of collective intentionality, and he makes instructive connections to major topics and figures in philosophy and the social sciences. His book will be of interest to a wide range of readers in philosophy of mind, philosophy of social science, psychology and sociology, and artificial intelligence.

In this paper I will discuss a certain philosophical and conceptual program -- that I have called philosophy of social action writ large -- and also show in detail how parts of the program have been, and is currently being carried out. In current philosophical research the philosophy of social action can be understood in a broad sense to encompass such central research topics as action occurring in a social context (this includes multi-agent action); shared we-attitudes (such as we-intention, mutual belief) and other social attitudes expressing collective intentionality and needed for the explication and explanation of social action; social macro-notions, such as actions performed by social groups and properties of social groups such as their goals and beliefs; social practices, and institutions (see e.g. Tuomela, 1995, 2000a, 2001). The theory of social action understood analogously in a broad sense would then involve not only philosophical but all other relevant theorizing about social action. Thus, in this sense, such fields of Artificial Intelligence (AI) as Distributed AI (DAI) and the theory of Multi-Agent Systems (MAS) fall within the scope of the theory of social action. DAI studies the social side of computer systems and includes various well-known areas ranging from human-computer interaction, computer-supported cooperative work, organizational processing, and distributed problem solving to the simulation of social systems

Rationality, Symbolism and Evolution The Nature of Rationality By Robert Nozick Princeton University Press, 1993. Pp. xvi + 226. ISBN 0–691–07424–0. £19.95 No Nonsense Rights The Realm of Rights By Judith Jarvis Thomson Harvard University Press, 1990. Pp. viii + 383. ISBN 0–674–74948–0. £27.95. In Search of the Common Mind The Common Mind: An Essay on Psychology, Society and Politics By Philip Pettit Oxford University Press, 1993. Pp. xvi + 365. ISBN 0–19–507818–7. £30. In elucidation of the common mind: a reply to Raimo Tuomela Realism, Pure and Simple? A Reply to Timothy Williamson.

The main task of the present paper is to investigate the nature of collective knowledge and discuss what kind of justificatory aspects are involved in it to discuss it from collective belief. The central kind of collective knowledge investigated is normatively binding knowledge attributed to a social group. A distinction is made between natural knowledge and constitutive knowledge related to social (especially institutional) matters. In the case of the latter kind of knowledge, in contrast to the former kind, justification and the criteria of justification are purely social. Knowledge is regarded as a primitive, irreducible notion that accordingly does not fall prey to Gettier-type paradoxes.

In this paper we will study two central social notions, acting as a group member and collective commitment. Our study of the first of these notions is – as far as we know – the first systematic work on the topic. Acting as a group member is a central notion that obviously must be understood when speaking of the “we-perspective”, group life, and of social life more generally. Thus, not only philosophy of sociality, philosophy of social science, political and moral philosophy but also the various social sciences need this notion and should benefit from our analyses and arguments.Collective commitment is the other “we-perspective” notion studied in our paper. We have argued for its importance as representing a kind of social glue needed for group members when thinking and acting as a group. In contrast to some other studies (e.g. Gilbert, 1989, 2000, Castelfranchi, 1995) our most elementary notion of collective commitment is not intrinsically normative but is only instrumentally “normative” and intention-relative. Thus our treatment covers more ground than the previous accounts do.