In her book Rationality and coordination (Cambridge University Press, 1994) Cristina Bicchieri brings together (and adds to) her own contributions to game theory and the philosophy of economics published in various journals in the period 1987-1992. The book, however, is not a collection of separate articles but rather a homogeneous unit organized around some central themes in the foundations of non-cooperative game theory. Bicchieri’s exposition is admirably clear and well organized. Somebody with a good knowledge of game theory would (...) probably benefit mainly from reading the second part of Chapter 3 (from Section 3.6 onward) and Chapter 4. On the other hand, those who have had little exposure to game theory, would certainly benefit from reading the entire book. I shall begin with an overview of the content of the book and then offer some critical comments on what I consider to be the most important part of it. (shrink)
This book is a major contribution to the understanding of Heidegger and a rare attempt to bridge the schism between traditions of analytic and Continental philosophy. Cristina Lafont applies the core methodology of analytic philosophy, language analysis, to Heidegger's work providing both a clearer exegesis and a powerful critique of his approach to the subject of language. In Part One, she explores the Heideggerean conception of language in depth. In Part Two, she draws on recent work from theorists of (...) direct reference (Putnam, Donnellan and Kripke inter alia) to reveal the limitations of Heidegger's views and to show how language shapes our understanding of the world without making learning impossible. The book first appeared in German but has been substantially revised for the English edition. (shrink)
Gomez, Cristina Lledo This article explores the idea that motherhood is an invitation to engage with the paschal mystery and can thus be a salvific experience in the lives of women. This is of even greater significance for a Christian mother who can explicitly name the experience as her own sharing in the paschal event of Jesus. This article will focus on crisis moments of motherhood in a contemporary Western context, exploring particularly the issues raised in first becoming a (...) mother, and on the initial years of motherhood. (shrink)
David Lewis is widely credited with the first formulation of common knowledge and the first rigorous analysis of convention. However, common knowledge and convention entered mainstream game theory only when they were formulated, later and independently, by other theorists. As a result, some of the most distinctive and valuable features of Lewis' game theory have been overlooked. We re-examine this theory by reconstructing key parts in a more formal way, extending it, and showing how it differs from more recent game (...) theory. In contrast to current theories of common knowledge, Lewis' theory is based on an explicit analysis of the modes of reasoning that are accessible to rational individuals and so can be used to analyse the genesis of common knowledge. Lewis' analysis of convention emphasises the role of inductive reasoning and of salience in the maintenance of conventions over time. Footnotes Earlier versions of this paper were presented at the 13th Amsterdam Colloquium at the University of Amsterdam, at a workshop on social norms at Wissenschaftskolleg zu Berlin, and at seminars at Tilburg University and the University of Bristol. We are grateful for comments from participants at those meetings, from two anonymous referees, and from Michael Bacharach, Nick Bardsley, Cristina Bicchieri, Luc Bovens, Simon Grant, David McCarthy, Shepley Orr, Brian Skyrms, Peter Vanderschraaf, Peter Wakker and Jörgen Weibull. Robert Sugden's work was supported by the Leverhulme Trust. (shrink)
In this paper I focus on the discussion between Rawls and Habermas on procedural justice. I use Rawls's distinction between pure, perfect, and imperfect procedural justice to distinguish three possible readings of discourse ethics. Then I argue, against Habermas's own recent claims, that only an interpretation of discourse ethics as imperfect procedural justice can make compatible its professed cognitivism with its proceduralism. Thus discourse ethics cannot be understood as a purely procedural account of the notion of justice. (...) Finally I draw the different consequences that follow from this reading. Key Words: discourse ethics • Jürgen Habermas • imperfect procedural justice • moral anti-realism • moral cognitivism • moral realism • perfect procedural justice • pure procedural justice • John Rawls. (shrink)
By 2050, global livestock production is expected to double—growing faster than any other agricultural sub-sector—with most of this increase taking place in the developing world. As the United Nation’s four-hundred-page report, Livestock’s Long Shadow: Environmental Issues and Options , documents, livestock production is now one of three most significant contributors to environmental problems, leading to increased greenhouse gas emissions, land degradation, water pollution, and increased health problems. The paper draws on the UN report as well as a flurry of other (...) recently published studies in order to demonstrate the effect of intensive livestock production on global warming and on people’s health. The paper’s goal is to outline the problems caused by intensive livestock farming and analyze a number of possible solutions, including legislative changes and stricter regulations, community mobilizing, and consumers choosing to decrease their demand for animal products. (shrink)
This paper is an attempt to criticize the reification of language present in Heidegger’s writings after the Kehre . The steps of the argument are as follows. First, it is argued that the specific features of Heidegger’s conception of language after the Kehre can be traced back to Heidegger’s conception of the ontological difference in Being and Time . The common element in both conceptions is the assumption that meaning determines reference (i.e. that the way entities are understood determines which (...) entities we can refer to). In the next step the implications of this assumption are shown through an analysis of Heidegger’s conception of designation in Being and Time and after the Kehre . Finally, this conception of designation is criticized with the help of the analysis of designation offered by the so-called theories of direct reference. Key Words: Donnellan • Heidegger • language • linguistic idealism • meaning • ontological difference • reference • referential/attributive distinction. (shrink)
This essay comments on the theory of social norms developed by Cristina Bicchieri in The Grammar of Society ( 2006 ). It applauds her theory of norms but argues that it cannot account for the experimental results concerning ultimatum games. A theory of fairness is also needed. It develops a number of specific criticisms of her way of incorporating the influence of norms into preferences. †To contact the author, please write to: Department of Philosophy, University of Wisconsin–Madison, 5197 Helen (...) C. White Hall, 600 N. Park Street, Madison, WI 53706‐1474; e‐mail: dhausman@wisc.edu. (shrink)
This book offers an excellent analysis of Habermas’s theory of communicative action. It has two distinct but complementary focuses. In the first part, the conception of communicative rationality at the basis of Habermas’s theory of action is confronted with the conception of instrumental rationality that is predominant in the social sciences: rational choice theory. The main focus of this analysis is to evaluate the plausibility of one central claim of Habermas’s theory, namely, that communicative rationality is irreducible to instrumental rationality (...) and thus constitutes a necessary element of a general theory of rationality. Although Heath’s analysis confirms the correctness of Habermas’s claim, it does so on the basis of a command of decision and game theory, the sophistication of which goes well beyond anything that Habermas himself (and most of his commentators) have so far actually provided. This is undoubtedly one of the most important achievements of the book. For it offers the so far missing argumentative step from the intuitiveness of Habermas’s irreducibility claim to a careful demonstration of what it is exactly about linguistic communication that cannot be modeled instrumentally. Moreover, this careful demonstration includes a very interesting and equally sophisticated analysis of the implications of Habermas’s theory for the philosophy of language, which so far has received too little attention by most of Habermas’s commentators. (shrink)
The first part of this work analyses the universalist and the particularist conceptions of reasons. The second part projects this analysis to the legal domain. The author stresses that universalism and particularism regarding reasons are mutually exclusive theories linked to incompatible conceptions of norms, i.e. norms as strict universal conditionals and norms as defeasible conditionals. In giving an account of this tenet, different meanings of universality and defeasibility are explored. A parallel debate regarding reasons can be found in the legal (...) domain, where two contrasting categories of norms are usually distinguished: rules and principles. On this issue the author argues that the conception of legal reasons depends on the way in which this contrast between different kinds of legal norms is shaped. (shrink)
To address the question posed in the title, I focus on Heidegger's conception of linguistic communication developed in the sections on Rede and Gerede of Being and Time. On the basis of a detailed analysis of these sections I argue that Heidegger was a social externalist but semantic internalist. To make this claim, however, I first need to clarify some key points that have led critics to assume Heidegger's commitment to social externalism automatically commits him to semantic externalism regarding concept (...) use. I begin by explaining the independence of those positions, arguing that social externalism answers the question of whose concepts in a linguistic community are properly individuated, whereas semantic externalism makes a claim about what it takes for concepts to be properly individuated. Once these issues are distinguished, it is possible to see that Heidegger's intersubjectivist conception of language commits him to social externalism, while his conception of the ontological difference commits him to semantic internalism. (shrink)
In his book Tales of the Mighty Dead Brandom engages Gadamer’s hermeneutic conception of interpretation in order to show that his inferentialist approach to understanding conceptual content can explain and underwrite the main theses of Gadamer’s hermeneutics which he calls ‘the gadamerian hermeneutic platitudes’. In order to assess whether this claim is sound, I analyze the three types of philosophical interpretations that Brandom discusses: de re, de dicto, and de traditione, and argue that they commit him to an ‘ecumenical historicism’ (...) that is directly at odds with the hermeneutic approach. Although the variety of de re interpretation that Brandom denominates de traditione comes indeed very close to the Gadamerian approach, I conclude that if Brandomian scorekeepers were to adopt it, they could become Gadamerian hermeneuts, but once they did, they would not be able to go back to their scorekeeping practices as described by Brandom. (shrink)
In the present paper we present a short review of some recent neuro- physiological and neuropsychological findings which suggest that self-generated actions and actions of others are mapped on the same neural substratum. Since this substratum is neutral with respect to the agent, correctly attributing an action to its proper author requires the co-activation of areas specific to the self and the other. A conceptual analysis of the empirical data will lead us to conclude that from a neurobiological point of (...) view the problem is not 'how is it possible to share the intentions of others', but rather 'how one can distinguish one's own action/intention from those of other people'. (shrink)
Cristina Lafont's recent reading of Heidegger offers a powerful formulation of the widespread view that once one recognizes our `facticity' and the role of language in shaping it, there is no room left to talk about transcendental structures of meaning or experience. In this article I challenge this view. I argue that Lafont inaccurately conflates what Heidegger calls our `understanding of being' with that which language discloses. In order to show that the philosophical motivation for this conflation is unsound, (...) I also argue that Lafont's own positive theory of meaning itself tacitly assumes a distinction between factical and transcendental, and so rests on exactly what she finds problematic in Heidegger. This still leaves a puzzle as to how factical individuals are actually able to grasp anything transcendental, so I conclude by sketching Heidegger's method of `formal indication', which is meant to show precisely how this can be done. Key Words: facticity • Martin Heidegger • language • transcendental philosophy. (shrink)
Edited by three leading figures in the field, this exciting volume presents cutting-edge work in decision theory by a distinguished international roster of contributors. These mostly unpublished papers address a host of crucial areas in the contemporary philosophical study of rationality and knowledge. Topics include causal versus evidential decision theory, game theory, backwards induction, bounded rationality, counterfactual reasoning in games and in general, analyses of the famous common knowledge assumptions in game theory, and evaluations of the normal versus extensive form (...) formulations of complex decision problems. (shrink)
The value of resting electroencephalogram (EEG) in revealing neural constitutes of consciousness (NCC) was examined. We quantified the dynamic repertoire, duration and oscillatory type of EEG microstates in eyes-closed rest in relation to the degree of expression of clinical self-consciousness. For NCC a model was suggested that contrasted normal, severely disturbed state of consciousness and state without consciousness. Patients with disorders of consciousness were used. Results suggested that the repertoire, duration and oscillatory type of EEG microstates in resting condition quantitatively (...) related to the level of consciousness expression in brain-damaged patients and healthy-conscious subjects. Specifically, results demonstrated that (a) decreased number of EEG microstate types was associated with altered states of consciousness, (b) unawareness was associated with the lack of diversity in EEG alpha-rhythmic microstates, and (c) the probability for the occurrence and duration of delta-, theta- and slow-alpha-rhythmic microstates were associated with unawareness, whereas the probability for the occurrence and duration of fast-alpha-rhythmic microstates were associated with consciousness. In conclusion, resting EEG has a potential value in revealing NCC. This work may have implications for clinical care and medical–legal decisions in patients with disorders of consciousness. (shrink)
The paper presents a simulation of the dynamics of impersonal trust. It shows how a "trust and reciprocate" norm can emerge and stabilize in populations of conditional cooperators. The norm, or behavioral regularity, is not to be identified with a single strategy. It is instead supported by several conditional strategies that vary in the frequency and intensity of sanctions.
We report two new phenomena of deontic reasoning: (1) For conditionals with deontic content such as, "If the nurse cleaned up the blood then she must have worn rubber gloves", reasoners make more modus tollens inferences (from "she did not wear rubber gloves" to "she did not clean up the blood") compared to conditionals with epistemic content. (2) For conditionals in the subjunctive mood with deontic content, such as, "If the nurse had cleaned up the blood then she must have (...) had to wear rubber gloves", reasoners make the same frequency of all inferences as they do for conditionals in the indicative mood with deontic content. In this regard, subjunctive deontics are different from subjunctive epistemic conditionals: reasoners interpret subjunctive epistemic conditionals as counterfactual and they make more negative inferences such as modus tollens from them. The experiments show these two phenomena occur for deontic conditionals that contain the modal auxiliary "must" and ones that do not. We discuss the results in terms of the mental representations of deontic conditionals and of counterfactual conditionals. (shrink)
Subjects communicated prior to playing trust games; the richness of the communication media and the topics of conversation were manipulated. Communication richness failed to produce significant differences in first-mover investments. However, the topics of conversation made a significant difference: the amounts sent were considerably higher in the unrestricted communication conditions than in the restricted communication and no-communication conditions. Most importantly, we find that first-movers’ expectations of second-movers’ reciprocation are influenced by communication and strongly predict their levels of investment.
Bachelard regarded the scientific changes that took place in the early twentieth century as the beginning of a new era, not only for science, but also for philosophy. For him, the theory of relativity and quantum mechanics had shown that a new philosophical ontology and a new epistemology were required. I show that the type of philosophy with which he was more closely associated, in particular that of Léon Brunschvicg, offered to him a crucial starting point. Brunschvicg never considered scientific (...) objects as independent of the mind, and as a consequence questions such as the existence of particles independently of the mind, theory or apparatus, were absent from his philosophy, which was rather aimed at analyzing the mind critically, and above all historically. Bachelard accepted the fundamental ideas of Brunschvicg’s philosophy; however, his own reading of contemporary science enabled him to go beyond it, as shown by his emphasis on the social production of knowledge, and by his removal of the distinction between ideas and technologically produced objects of knowledge. For him, modern science teaches philosophy that knowledge is not a phenomenology but rather a ‘phenomenotechnique’. I argue that Bachelard’s view that philosophy ‘should follow science’ stems from moral considerations. (shrink)
In this essay I analyze some conceptual difficulties associated with the demand that global institutions be made more democratically accountable. In the absence of a world state, it may seem inconsistent to insist that global institutions be accountable to all those subject to their decisions while also insisting that the members of these institutions, as representatives of states, simultaneously remain accountable to the citizens of their own countries for the special responsibilities they have towards them. This difficulty seems insurmountable in (...) light of the widespread acceptance of a state-centric conception of human rights, according to which states and only states bear primary responsibility for the protection of their citizens' rights. Against this conception, I argue that in light of the current structures of global governance the monistic ascription of human rights obligations to states is no longer plausible. Under current conditions, states are bound to fail in their ability to protect the human rights of their citizens whenever potential violations either stem from transnational regulations or are perpetrated by non-state actors. In order to show the plausibility of an alternative, pluralist conception of human rights obligations I turn to the current debate among scholars of international law regarding the human rights obligations of non-state actors. I document the various ways in which these obligations could be legally entrenched in global financial institutions such as the WTO, the IMF and the World Bank. These examples indicate feasible methods for strengthening the democratic accountability of these institutions while also respecting the accountability that participating member states owe to their own citizens. I conclude that, once the distinctions between the obligations to respect, protect and fulfill human rights are taken into account, no conceptual difficulty remains in holding states and non-state actors accountable for their respective human rights obligations. (shrink)
The default mode network (DMN) has been consistently activated across a wide variety of self-related tasks, leading to a proposal of the DMN’s role in self-related processing. Indeed, there is limited fMRI evidence that the functional connectivity within the DMN may underlie a phenomenon referred to as self-awareness. At the same time, none of the known studies have explicitly investigated neuronal functional interactions among brain areas that comprise the DMN as a function of self-consciousness loss. To fill this gap, EEG (...) operational synchrony analysis was performed in patients with severe brain injuries in vegetative and minimally conscious states to study the strength of DMN operational synchrony as a function of self-consciousness expression. We demonstrated that the strength of DMN EEG operational synchrony was smallest or even absent in patients in vegetative state, intermediate in patients in minimally conscious state and highest in healthy fully self-conscious subjects. At the same time the process of decoupling of operations performed by neuronal assemblies that comprise the DMN was highest in patients in vegetative state, intermediate in patients in minimally conscious state and minimal in healthy fully self-conscious subjects. The DMN’s frontal EEG operational module had the strongest decrease in operational synchrony strength as a function of selfconsciousness loss, when compared with the DMN’s posterior modules. Based on these results it is suggested that the strength of DMN functional connectivity could mediate the strength of self-consciousness expression. The observed alterations similarly occurred across EEG alpha, beta1 and beta2 frequency oscillations. Presented results suggest that the EEG operational synchrony within DMN may provide an objective and accurate measure for the assessment of signs of self-(un)consciousness in these challenging patient populations. This method therefore, may complement the current diagnostic procedures for patients with severe brain injuries and, hence, the planning of a rational rehabilitation intervention. (shrink)
Although several studies propose that the integrity of neuronal assemblies may underlie a phenomenon referred to as awareness, none of the known studies have explicitly investigated dynamics and functional interactions among neuronal assemblies as a function of consciousness expression. In order to address this question EEG operational architectonics analysis (Fingelkurts and Fingelkurts, 2001, 2008) was conducted in patients in minimally conscious (MCS) and vegetative states (VS) to study the dynamics of neuronal assemblies and operational synchrony among them as a function (...) of consciousness expression. We found that in minimally conscious patients and especially in vegetative patients neuronal assemblies got smaller, their life-span shortened and they became highly unstable. Furthermore, we demonstrated that the extent/volume and strength of operational synchrony among neuronal assemblies was smallest or even absent in VS patients, intermediate in MCS patients and highest in healthy fully-conscious subjects. All findings were similarly observed in EEG alpha as well as beta1 and beta2 frequency oscillations. The presented results support the basic tenets of Operational Architectonics theory of brain-mind functioning and suggest that EEG operational architectonics analysis may provide an objective and accurate means of assessing signs of (un)consciousness in patients with severe brain injuries. Therefore this methodological approach may complement the existing “gold standard” of behavioral assessment of this population of challenging patients and inform the diagnostic and treatment decision-making processes. (shrink)
In recent years there has been a great deal of interaction among game theorists, philosophers, and logicians in certain foundational problems concerning rationality, the formalization of knowledge and practical reasoning, and models of learning and deliberation. This unique volume brings together the work of some of the preeminent figures in their respective disciplines, all of whom are engaged in research at the forefront of their fields. Together they offer a conspectus of the interaction of game theory, logic, and epistemology in (...) the formal models of knowledge, belief, deliberation, and learning and in the relationship between Bayesian decision theory and game theory, as well as between bounded rationality and computational complexity. (shrink)
In the Symposium Socrates shows how Diotima initiated him into the mysteries of love in two stages. Yet, at first sight, the teachings offered at the two stages seem divergent and discontinuous. In this article I argue that we can understand the continuity between them if we regard Diotima’s notions of spiritual pregnancy and birth-giving as metaphors suggesting that the metaphysical horizon looming in the background of her teaching is that of Plato’s theory of recollection.Socrate explique dans le Banquet comment (...) Diotime l’a initié aux mystères de l’amour en suivant deux niveaux. Pourtant, de prime abord, les enseignements dispensés à ces deux niveaux semblent divergents et séparés par une solution de continuité. Je soutiens dans cet article qu’il est possible de comprendre la continuité entre ces deux niveaux si on considère les notions de grossesse spirituelle etd’enfantement avancées par Diotime comme des métaphores qui laissent entrevoir la théorie de la réminiscence à l’horizon métaphysique de cet enseignement. (shrink)
Our lives are commonly involved with fictionality, an activity that adults share with children. After providing a brief reconstruction of the most important cognitive theories on pretence, we will argue that pretence has to do with metarepresentations, albeit in a rather weakened sense. In our view, pretending entails being aware that a certain representation does not fit in the very same representational model as another representation. This is a minimal metarepresentationalism, for normally metarepresentationalism on pretense claims that pretending is or (...) entails representing a representation qua representation, i.e. as conceptualised as a representation, in its very content. In the final section we will try to draw some consequences of our view as to the debate in cognitive science on mindreading. Given this minimal metarepresentationalism, the two main positions on mindreading, the ‘theory theory’ and the ‘simulation theory’, turn out to be closer than one would have originally supposed. (shrink)
Thanks to their heterogeneity, the nine essays in this volume offer a clear testimony of Donald Davidson's authority, and they undoubtedly show how much his work - even if it has raised many doubts and criticisms - has been, and still is, highly influential and significant in contemporary analytical philosophy for a wide range of subjects. Moreover, the various articles not only critically and carefully analyse Davidson's theses and arguments (in particular those concerning language and knowledge), but they also illustrate (...) how such theories and ideas, despite their unavoidable difficulties, are still alive and potentially fruitful. Davidson's work is indeed an important and provocative starting point for discussing the future progress of philosophy. (shrink)
La discussione generale sulla filosofia della scienza contemporanea è complicata dal numero e dall’eterogeneità delle scienze, mentre lo studio di temi specifici porta inevitabilmente a dissertazioni specialistiche che mancano nel dare ragione della trama di senso sottostante. Questo Piccolo trattato di epistemologia intende occupare uno spazio vuoto, proponendo alcuni temi chiave per la comprensione dei meccanismi alla base della conoscenza scientifica: i rapporti tra filosofia e scienze, siano esse naturali o umane; la complessa relazione tra fatti e valori; la distinzione (...) tra scoperta e giustificazione; la necessità di un discorso etico sulla ricerca, che chiami in causa categorie come fiducia, empatia, altruismo ed egoismo. Con un approccio chiaro e rigoroso, il volume intende rivolgersi a quell’ampia fascia di pubblico interessata alle tematiche centrali dell’epistemologia, della filosofia e delle scienze. (shrink)
Whitehead, in two basic books, considers two different approaches to point-free geometry: the inclusion-based approach , whose primitive notions are regions and inclusion relation between regions, and the connection-based approach , where the connection relation is considered instead of the inclusion. We show that the latter cannot be reduced to the first one, although this can be done in the framework of multivalued logics.
The isolation and professionalization of philosophy is detrimental to it. The most interesting philosophical activity is conducted at the interface of philosophy and other disciplines. Thus philosophy must continue to cross boundaries and avoid fretting about what is and is not philosophy proper.
As scientists begin to study increasingly complex questions, many have turned to computer simulation to assist in their inquiry. This methodology has been challenged by both analytic modelers and experimentalists. A primary objection of analytic modelers is that simulations are simply too complicated to perform model verification. From the experimentalist perspective it is that there is no means to demonstrate the reality of simulation. The aim of this paper is to consider objections from both of these perspectives, and to argue (...) that a proper understanding and application of robustness analysis is able to resolve them. ‡The author would like to thank Cristina Bicchieri, Michelle Foa, Paul Humphreys and Michael Weisberg for their helpful comments and suggestions. †To contact the author, please write to: Department of Philosophy, University of Pennsylvania, 433 Logan Hall, 249 S. 36th Street, Philadelphia, PA, 19104-6304; e-mail: rmuldoon@sas.upenn.edu. (shrink)
University of Pennsylvania, USA, el322{at}nyu.edu ' + u + '@' + d + ' '//--> One of the most consistent findings in experimental studies of social dilemmas is the positive influence of face-to-face communication on cooperation. The face-to-face `communication effect' has been recently explained in terms of a `focus theory of norms': successful communication focuses agents on pro-social norms, and induces preferences and expectations conducive to cooperation. 1 Many of the studies that point to a communication effect, however, do not (...) further explore whether and to what extent the communication medium affects cooperative behavior. In this article, we ask if pro-social behavior can emerge and survive in computer-mediated environments. We show that, like face-to-face communication, computer-mediated communication also positively affects cooperation in social dilemmas, but cooperation is more difficult to establish and maintain. We argue that the discrepancy between the computer-mediated and the face-to-face communication effects is a consequence of the distinct capabilities of different media to focus agents on pro-social norms and to allow them to develop mutual expectations about future behavior. Key Words: social dilemmas • laboratory experiments • communication • social norms • cooperation • computer-mediated communication. (shrink)
We present an axiomatic approach for a class of finite, extensive form games of perfect information that makes use of notions like rationality at a node and knowledge at a node. We distinguish between the game theorist's and the players' own theory of the game. The latter is a theory that is sufficient for each player to infer a certain sequence of moves, whereas the former is intended as a justification of such a sequence of moves. While in general the (...) game theorist's theory of the game is not and need not be axiomatized, the players' theory must be an axiomatic one, since we model players as analogous to automatic theorem provers that play the game by inferring (or computing) a sequence of moves. We provide the players with an axiomatic theory sufficient to infer a solution for the game (in our case, the backwards induction equilibrium), and prove its consistency. We then inquire what happens when the theory of the game is augmented with information that a move outside the inferred solution has occurred. We show that a theory that is sufficient for the players to infer a solution and still remains consistent in the face of deviations must be modular. By this we mean that players have distributed knowledge of it. Finally, we show that whenever the theory of the game is group-knowledge (or common knowledge) among the players (i.e., it is the same at each node), a deviation from the solution gives rise to inconsistencies and therefore forces a revision of the theory at later nodes. On the contrary, whenever a theory of the game is modular, a deviation from equilibrium play does not induce a revision of the theory. (shrink)
The paper provides a framework for representing belief-contravening hypotheses in games of perfect information. The resulting t-extended information structures are used to encode the notion that a player has the disposition to behave rationally at a node. We show that there are models where the condition of all players possessing this disposition at all nodes (under their control) is both a necessary and a sufficient for them to play the backward induction solution in centipede games. To obtain this result, we (...) do not need to assume that rationality is commonly known (as is done in [Aumann (1995)]) or commonly hypothesized by the players (as done in [Samet (1996)]). The proposed model is compared with the account of hypothetical knowledge presented by Samet in [Samet (1996)] and with other possible strategies for extending information structures with conditional propositions. (shrink)
The paper provides a framework for representing belief-contravening hypotheses in games of perfect information. The resulting t-extended information structures are used to encode the notion that a player has the disposition to behave rationally at a node. We show that there are models where the condition of all players possessing this disposition at all nodes (under their control) is both a necessary and a su cient for them to play the backward induction solution in centipede games. To obtain this result, (...) we do not need to assume that rationality is commonly known (as is done in [Aumann (1995)]) or commonly hypothesized by the players (as done in [Samet (1996)]). The proposed model is compared with the account of hypothetical knowledge presented by Samet in [Samet (1996)] and with other possible strategies for extending information structures with conditional propositions. (shrink)
Social cooperation often relies on individuals’ spontaneous norm obedience when there is no punishment for violation or reward for compliance. However, people do not consistently follow pro-social norms. Previous studies have suggested that an individual’s tendency toward norm conformity is affected by empirical information (i.e., what others did or would do in a similar situation) as well as by normative information (i.e., what others think one ought to do). Yet little is known about whether people have an intrinsic desire to (...) obtain norm-revealing information. In this paper, we use a dictator game to investigate whether dictators actively seek norm-revealing information and, if so, whether they prefer to get empirical or normative information. Our data show that although the majority of dictators choose to view free information before making decisions, they are equally likely to choose empirical or normative information. However, a large majority (more than 80%) of dictators are not willing to incur even a very small cost for getting information. Our findings help to understand why norm compliance is context-dependent, and highlight the importance of making norm-revealing information salient in order to promote conformity. (shrink)
Plato’s definition of pleasure as perceptible replenishment of a lack has been criticized as too narrow and incapable of accounting for some of the corporeal and all the non-corporeal pleasures. Plato’s suggested reply, based on objective standards in relation to which we are to estimate the reality and degree of replenishment we experience, seems to give rise to another difficulty, concerning the legitimate diversity of our natural inclinations and tastes. I argue that Plato’sdefinition of pleasure makes perfect sense when integrated (...) in the horizon of his metaphysical presuppositions and that he is successful in reconciling the diversity of subjective tastes with his view of an ultimate objective hierarchy of value by appeal to the notion of the mean. (shrink)
In this article, we aim to illustrate evolutionary explanations for the emergence of framing effects, discussed in detail in Cristina Bicchieri’s The Grammar of Society . We show how framing effects might evolve which coalesce two economically distinct interactions into a single one, leading to apparently irrational behavior in each individual interaction. Here we consider the now well-known example of the ultimatum game, and show how this ‘irrational’ behavior might result from a single norm which governs behavior in multiple (...) games. We also show how framing effects might result in radically different play in strategically identical situations. We consider the Hawk-Dove game (the game of chicken) and also the Nash bargaining game. Here arbitrary tags or signals might result in one party doing better than another. (shrink)
After the end of the Second World War, Italy was thefirst Axis country (followed by Germany and Japan), toundergo a process of ``reeducation'' by the alliedtroops, focusing initially on the education system.Under the direction of American scholars and schoolinnovators, school syllabi and textbooks wererewritten in order to replace the ideologicalindoctrination exerted by the Fascist regime from 1923to 1943 with democratic ideas. This articlereconstructs different phases of the influence of JohnDewey's progressive education in Italy. This influencewas predominant in policy and experimental (...) schools, aswell as in educational theory in the periodimmediately following the War, but it was almosteliminated from policy documents in a restorativebacklash of the Cold War. From the sixties on however,Dewey's pedagogical thinking, which never lost groundwithin the liberal, laicist and Marxist circles,gradually and selectively regained influence inpolicies and reforms. (shrink)
We present an axiomatic approach for a class of finite, extensive form ganies of perfect information that makes use of notions like "rationality at a node" and "knowledge at a node." We show that, in general, a theory that is sufEcient to infer an equilibrium must be modular: for each subgame G' of a game G the theory of game G must contain just enough inforniation about the subgame G' to infer an equilibrium for G'. This means, in general, that (...) the level of knowledge relative to any subgame of G must not be the same as the level of knowledge relative to tlie original game G. We show that whenever the theory of the game is the same at each node, a deviation from equilibrium play forces a revision of the theory at later nodes. On the contrary, whenever a theory of the game is modular, a deviation from equilibrium play does not cause any revision of the theory of the game. (shrink)
ABSTRACT: This article addresses two main concerns: first, the relation between the truth/falsehood and purity/impurity criteria as applied to pleasure, and, second, the status of our pleasures of learning. In addressing the first, I argue that Plato keeps the truth/falsehood and purity/impurity criteria distinct in his assessment of pleasures and thus leaves room for the possibility of hybrid pleasures in the form of true impure pleasures and false pure pleasures. In addressing the second issue, I show that Plato's view is (...) perfectly able to accommodate an understanding of our pleasures of learning as pure pleasures even if such pleasures are preceded by awareness of a lack (ignorance).RÉSUMÉ: Cet article aborde deux concepts principaux: premièrement, la relation entre les critères de vérité/fausseté et de pureté/impureté appliqués au plaisir, et deuxièmement, le statut de notre plaisir d'apprendre. En abordant le premier concept, j'argumente que Platon tient distincts les critères de vérité/fausseté et de'pureté Iimpureté dans son évaluation du plaisir, laissant ouverte la possibilité de plaisirs hybrides sous forme de vrais plaisirs impurs et faux plaisirs purs. En abordant le deuxième concept, je montre que le point de vue de Platon est parfaitement capable d'accommoder la compréhension de nos plaisirs d'apprendre comme plaisirs purs si de tels plaisirs sont précédés par la conscience d'un manque (ignorance). (shrink)
