The Philosophy of Sociality offers new ideas and conceptual tools for philosophers and social scientists in their analysis of the social world.

This volume presents a systematic philosophical theory related to the collectivism-versus-individualism debate in the social sciences. A weak version of collectivism (the "we-mode" approach) that depends on group-based collective intentionality is developed in the book. The we-mode approach is used to account for collective intention and action, cooperation, group attitudes, social practices and institutions as well as group solidarity.

This work provides a rigorous analysis of what Tuomela calls ‘the we-perspective’. Tuomela's overarching project is to argue that ‘conceptualizing social life and theorizing about it requires the use of group concepts, indeed the we-perspective and, especially, the we-mode.’ Already some of the complexities of Tuomela's approach will be evident – viz. in the distinction, implied in the above quotation and carried through systematically throughout the work, between the ‘we-perspective’ and the ‘we-mode’. For, indeed, it is possible, on his account, (...) to take up the we-perspective from the I-mode and, indeed, this is probably quite common, but is not adequate to ground the analysis of social and institutional concepts. As Tuomela puts it, ‘The concept of social institution is a we-mode concept, and in actual practice, at least some we-mode thinking and acting is required for institutions to function adequately.’ Since ‘we-mode’ is the more central notion, let us begin with that. It will be instructive to quote Tuomela at length : " Agent A, a member of group g, has ATT, the attitude ATT with content p, in … ". (shrink)

This book develops a systematic philosophical theory of social action and group phenomena, in the process presenting detailed analyses of such central social notions as 'we-attitude' (especially 'we-intention' and mutual belief, social norm, joint action, and - most important - group goal, group belief, and group action). Though this is a philosophical work, it presents a unified conceptual framework that may be useful to social scientists, especially social psychologists, as well as philosophers. The book puts forward and defends a number (...) of systematic philosophical theses, resulting in not only a theory of social action but, more broadly, a philosophical theory of society, or at least those aspects of society with which social psychology is supposed to deal (individuals in groups, groups, joint action, and the like). (shrink)

This paper gives an up-to-date account of we-intentions and responds to some critics of the author’s earlier work on the topic in question. While the main lines of the new account are basically the same as before, the present account considerably adds to the earlier work. For one thing, it shows how we-intentions and joint intentions can arise in terms of the so-called Bulletin Board View of joint intention acquisition, which relies heavily on some underlying mutually accepted conceptual and situational (...) presuppositions but does not require agreement making or joint intention to form a joint intention. The model yields categorical, unconditional intentions to participate in the content of the we-intention and joint intention (viz. shared we-intention upon analysis). The content of a we-intention can be, but need not be a joint action. Thus a participant alone cannot settle and control the content of the intention. Instead the participants jointly settle the content and control the satisfaction of the intention. These and some other features distinguish we-intentions from “action intentions”, viz. intentions that an agent can alone settle and satisfy. The paper discusses weintentions (and other “aim-intentions”) from this perspective and it also defends the author’s earlier account against a charge of vicious circularity that has been directed against it. (shrink)

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. (shrink)

Page 1. Economics and Philosophy, 26 291--320 Copyright C Cambridge University Press doi: 10.1017 / S0266267110000386 TWO KINDS OF WE-REASONING RAUL HAKLI, KAARLO MILLER AND RAIMO TUOMELA University of Helsinki.

In this paper the problem of the relation between belief and acceptance is discussed in view of recent literature on the topic. Belief and acceptance are characterized in terms of a number of properties, which show both the similarities and the dissimilarities between these notions. In particular it is claimed - contrary to some recently expressed views - that acceptance need not be intentional action and that the differences between belief and acceptance do not boil down to the simple view (...) that acceptance, contrary to belief, is based on the agent's direct exercise of his will. Acceptance which is not based on intentional action is shown in the paper to be especially closely related to belief, especially to linguistic belief. Thus if a person is in a non-intentional-ly acquired and held state of acceptance that something p, he also believes that p. Another general difference is that acceptance is language-dependent while there can be non-linguistic belief. Collective beliefs and acceptances are also briefly discussed in the paper Among other things, it is noted that the notion of wide as contrasted with truth-oriented, narrow acceptance is central in the collective case. (shrink)

The central topic of this paper is to study joint intention to perform a joint action or to bring about a certain state. Here are some examples of such joint action: You and I share the plan to carry a heavy table jointly upstairs and realize this plan, we sing a duet together, we clean up our backyard together, and I cash a check by acting jointly with you, a bank teller, and finally we together elect a new president for (...) our country. In these cases the participants can be said to have a joint intention jointly or as a group to carry the table upstairs: the content of the intention involves our performing something together and the pronoun “we” refers to us, viz. you and me and the possible other participants considered together. When we jointly intend to carry the table, each of us can be said to.. (shrink)

The paper presents an account of social institutions on the basis of collective acceptance. Basically, collective acceptance by some members of a group involves the members’ collectively coming to hold and holding a relevant social attitude (a “we-attitude”), viz. either one in the intention family of concepts or one in the belief family. In standard cases the collective acceptance must be in the “we-mode”, viz. performed as a group member, and involve that it be meant for the group. The participants (...) must be collectively committed to what they have accepted. Social institutions are taken to be norm-governed social practices introducing a new social and conceptual status on the practices or some elements involved in those practices. This requires that some of the involved norms be constitutive norms as opposed to merely “accidentally” regulating ones. A classification of social institutions is presented. The account is broader in scope than is Searle’s. (shrink)

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. (shrink)

It is argued in this paper that there can be both normative and nonnormative, merely factual group beliefs. The former involve the whole social group in question, while the latter only relate to the distributions of personal beliefs within the group. The paper develops a detailed theory, called the positional account of group beliefs, to explicate normative, group-involving group beliefs. Normative group beliefs are characterized within this approach in terms of joint acceptances of views by the group members — or (...) their representatives — acting in their right positions and tasks, and in a sense creating group commitments for all the members to accept (and keep accepting) the view in question. Also aggregate accounts of group belief are considered in the paper, especially the shared we-belief approach. Such aggregate accounts purport to account for merely factual group beliefs. (shrink)

This paper is mainly about cooperation as a collective action in a group context (acting in a position or participating in the performance of a group task, etc.), although the assumption of the presence of a group context is not made in all parts of the paper. The paper clarifies what acting as a group member involves, and it analytically characterizes the ‘‘we-mode’’ (thinking and acting as a group member) and the ‘‘I-mode’’ (thinking and acting as a private person).

Group agents are able to act but are not literally agents. Some group agents, e.g., we-mode groups and corporations, can, however, be regarded as functional group agents that do not have “intrinsic” mental states and phenomenal features comparable to what their individual members on biological and psychological grounds have. But they can have “extrinsic” mental states, states collectively attributed to them—primarily by their members. In this paper, we discuss the responsibility of such group agents. We defend the view that if (...) the group members have accepted the group agent’s attitudes and are committed to them, we can favorably compare the situation with the case of individual human agents and a group agent can be regarded as morally responsible for its intentional activities. (shrink)

This paper gives an account of communicative action from the point of view of communication as a cooperative enterprise. It is argued that this is communication both on the basis of shared collective goals and without them. It is also argued that people can communicate without specifically formed illocutionary communicative intentions. The paper concludes by comparing the account given in the paper with Habermas’s theory of communicative action.

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. (shrink)

The paper studies cooperation as joint action, where joint action can, first, be conceptualized either individualistically in terms of the participants' individual goals and beliefs that the joint action is taken to serve. This is individualistic or 'I-mode' cooperation. Special version of it is 'pro-group I-mode' cooperation, where the goals are shared. Second, cooperation can be of the kind where a group of persons act together as a group in terms of the non-aggregative 'we' that they form. The results of (...) the paper support the conjecture that we-mode conceptualization and an account of cooperation is needed to complement the individualistic I-mode account in social science theorizing and experimentation. (shrink)

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 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. (shrink)

Measures of theory-Distance are defined for theories formalizable within first-Order predicate logic by using distributive normal forms. The account is applied to give measures of verisimilitude.

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. (shrink)

The paper argues that there are two main kinds of joint action, direct joint bringing about (or performing) something (expressed in terms of a DO-operator) and jointly seeing to it that something is the case (expressed in terms of a Stit-operator). The former kind of joint action contains conjunctive, disjunctive and sequential action and its central subkinds. While joint seeing to it that something is the case is argued to be necessarily intentional, direct joint performance can also be nonintentional. Actions (...) performed by social groups are analyzed in terms of the notions of joint action (basically DO and Stit).A precise semantical analysis of the aforementioned kinds of joint action is given in terms of time-trees. With each participant a tree is connected, and the trees are joined defining joint possible worlds in terms of state-expressing nodes from the trees. Sentences containing DO and Stit are semantically evaluated with respect to such joint possible worlds. Intentional joint actions are characterized in terms of the notion of we-intention (joint intention), characterized formally by means of a special operator. (shrink)

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. (shrink)

Much of human life consists of acting in a group context. We are members of several social groups – small social groups, organizations, nations, states, etc. As to groups, some of them are capable of action, e.g. teams and task groups, organizations, and states. Such group action is action as a group (in contrast to the group members just acting separately and as private persons toward a shared goal, for instance). Groups can only act through their members’ actions. To give (...) an example, a group of peace demonstrators gets the permission to march in the streets but is later accused of demolishing property due to some members’ lack of commitment to the group’s rules. These kinds of situations indicate that there is a need to take a closer look at what acting as a group member and what group members’ collective commitment involve and presuppose. I will below elucidate these notions in several different ways and try to show for which situations the various analyses are adequate. (shrink)

This paper is mainly a response to Charles Morgan's criticisms (this journal, pp. 511-25) of the author's model of the (formal aspects of) explanation. It is claimed in the paper that with two modifications and some additional specifications the model withstands Morgan's criticisms.