Epistemic value is a kind of value possessed by knowledge, and perhaps other epistemic goods such as justification and understanding. The problem of explaining the value of knowledge is perennial in philosophy, going back at least as far as Plato’s Meno. One formulation of the problem is to explain why and in what sense knowledge is valuable. Another version of the problem is to explain why and in what sense knowledge is more valuable than mere true belief or opinion. This (...) article looks at various formulations of the value problem and various accounts of the value of knowledge in ancient and modern philosophy. The article then considers some contemporary discussions of the value problem, including the charge that reliabilist accounts cannot account for the value of knowledge over mere true belief. Various virtue-theoretic accounts of epistemic value are discussed as possible improvements over process reliabilism, and the epistemic value of understanding (as compared to knowledge) is considered. (shrink)

We propose a task for eliciting attitudes toward risk that is close to real-world risky decisions which typically involve gains and losses. The task consists of accepting or rejecting gambles that provide a gain with probability p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$p$$\end{document} and a loss with probability 1-p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1-p$$\end{document}. We employ finite mixture models to uncover heterogeneity in risk preferences and find that behavior is heterogeneous, with one half (...) of the subjects behaving as expected utility maximizers, for the others, reference-dependent models perform better than those where subjects derive utility from final outcomes, models with sign-dependent decision weights perform better than those without, and there is no evidence for loss aversion. The procedure is sufficiently simple so that it can be easily used in field or lab experiments where risk elicitation is not the main experiment. (shrink)

Research in psychology suggests that some individuals are more sensitive to positive than to negative information while others are more sensitive to negative rather than positive information. I take these cognitive positive–negative asymmetries in information processing to a Bayesian decision-theory model and explore its consequences in terms of decisions and payoffs. I show that in monotone decision problems economic agents with more positive-responsive information structures are always better off, ex ante, when they face problems where payoffs are relatively more sensitive (...) to the action chosen when the state of nature is favorable. (shrink)

The confusion generated in the communicational field by the assumption of a signal theory (Shannon) that searches for effectiveness in the transmission of a message from a transmitter to a receiver, which is generalized as a theory of information or of communication, has proposed an orientatio..

We describe a sequent calculus, based on work of Herbelin, of which the cut-free derivations are in 1-1 correspondence with the normal natural deduction proofs of intuitionistic logic. We present a simple proof of Herbelin's strong cut-elimination theorem for the calculus, using the recursive path ordering theorem of Dershowitz.

We argue that it is fundamentally impossible to recover information about quantum superpositions when a quantum system has interacted with a sufficiently large number of degrees of freedom of the environment. This is due to the fact that gravity imposes fundamental limitations on how accurate measurements can be. This leads to the notion of undecidability: there is no way to tell, due to fundamental limitations, if a quantum system evolved unitarily or suffered wavefunction collapse. This in turn provides a solution (...) to the problem of outcomes in quantum measurement by providing a sharp criterion for defining when an event has taken place. We analyze in detail in examples two situations in which in principle one could recover information about quantum coherence: (a) “revivals” of coherence in the interaction of a system with the measurement apparatus and the environment and (b) the measurement of global observables of the system plus apparatus plus environment. We show in the examples that the fundamental limitations due to gravity and quantum mechanics in measurement prevent both revivals from occurring and the measurement of global observables. It can therefore be argued that the emerging picture provides a complete resolution to the measurement problem in quantum mechanics. (shrink)

We make a first attempt to axiomatically formulate the Montevideo interpretation of quantum mechanics. In this interpretation environmental decoherence is supplemented with loss of coherence due to the use of realistic clocks to measure time to solve the measurement problem. The resulting formulation is framed entirely in terms of quantum objects without having to invoke the existence of measurable classical quantities like the time in ordinary quantum mechanics. The formulation eliminates any privileged role to the measurement process giving an objective (...) definition of when an event occurs in a system. (shrink)

We argue that it is fundamentally impossible to recover information about quantum superpositions when a quantum system has interacted with a sufficiently large number of degrees of freedom of the environment. This is due to the fact that gravity imposes fundamental limitations on how accurate measurements can be. This leads to the notion of undecidability: there is no way to tell, due to fundamental limitations, if a quantum system evolved unitarily or suffered wavefunction collapse. This in turn provides a solution (...) to the problem of outcomes in quantum measurement by providing a sharp criterion for defining when an event has taken place. We analyze in detail in examples two situations in which in principle one could recover information about quantum coherence: a) “revivals” of coherence in the interaction of a system with the measurement apparatus and the environment and b) the measurement of global observables of the system plus apparatus plus environment. We show in the examples that the fundamental limitations due to gravity and quantum mechanics in measurement prevent both revivals from occurring and the measurement of global observables. It can therefore be argued that the emerging picture provides a complete resolution to the measurement problem in quantum mechanics. (shrink)

This paper explores the role of inequity aversion as an explanation for observed behavior in experimental Cournot oligopolies. We show that inequity aversion can change the nature of the strategic interaction: quantities are strategic substitutes for sufficiently asymmetric output levels but strategic complements otherwise. We find that inequity aversion can explain why: some experiments result in higher than Cournot–Nash production levels while others result in lower, collusion often occurs with only two players whereas with three or more players market outcomes (...) are very close to Cournot–Nash, and players often achieve equal profits in asymmetric Cournot oligopoly. (shrink)

This paper uses a field survey to investigate the quality of individuals’ beliefs of relative performance in tournaments. We consider two field settings, poker and chess, which differ in the degree to which luck is a factor and also in the information that players have about the ability of the competition. We find that poker players’ forecasts of relative performance are random guesses with an overestimation bias. Chess players also overestimate their relative performance but make informed guesses. We find support (...) for the “unskilled and unaware hypothesis” in chess: high-skilled chess players make better forecasts than low-skilled chess players. Finally, we find that chess players’ forecasts of relative performance are not efficient. (shrink)

In a controlled laboratory experiment we use one sample of college students and one of mature executives to investigate how positive skew influences risky choices. In reduced-form regressions we find that both students and executives make riskier choices when lotteries display positive skew. We estimate decision models to explore three explanations for skew seeking choices: risk-loving, optimism and likelihood insensitivity. We find no role for love for risk as neither students nor executives have convex utility. Both optimism and likelihood insensitivity (...) play a part in skew seeking choices. Likelihood insensitivity is larger for students than for executives. Executives have more concave utility and are more optimistic than students, but this is found to be largely due to them being older. (shrink)

Isaac de Pinto was an active financier, economist and homme de lettres. Descending from a Jewish family of Portuguese origin, he lived in Amsterdam, Paris and London. Throughout his life, he enjoyed close relationships and made regular contact with important figures of the European Enlightenment. The main purpose of this article is to show that the concern with the Jewish problems, namely those relating to the difficult economic situation of the Portuguese nation in Amsterdam in the second half of (...) the eighteenth century, is a key factor in explaining the ongoing moral and apologetic dialogues that Isaac de Pinto maintained separately with Voltaire and Diderot. ☆ The authors are most grateful for the comments and suggestions provided by Antoin Murphy and two referees of this journal. The usual disclaimer applies. (shrink)

In chapter 5 of his 1992 book A Study of Concepts, Christopher Peacocke claims that his account of concepts can be reconciled with naturalism. Nonetheless, despite Peacocke’s greatest efforts to convince the skeptics that the mentioned accommodation is viable if one accepts his approach to concepts, some suspicion survives. In a recent paper on this very topic, Jose Luis Bermudez raises questions about Peacocke’s supposed naturalization by arguing that the approach in question is not able to make sense of the (...) distinction between misapplying a concept one nonetheless possesses and not possessing that concept at all. What I am going to do here is, on the one hand, defend Peacocke’s concept naturalization project from Bermudez’s objection and, on the other hand, show that the latter’s suggestion cannot save the surely crucial distinction between making a mistake in using a concept and being incapable of a mistake or a correct use because of not having the concept. (shrink)

« Le vieil original si intelligent, si fou » que Marcel Proust évoque à travers les autoportraits de Chardin, s'est-il dépeint lui-même sous le masque projectif du sage, dans l'un de ses tableaux les plus célèbres, le Philosophe du Louvre? Le maître de la nature morte, voulant s'élever dans la hiérarchie des rangs de I' Académie, a semble-t-il cherché, dans cette oeuvre de jeunesse, à suppléer à « son défaut d'instruction» dans «les humanités», par la représentation d'un personnage au goût (...) du jour, d'un moderne philosophe. Philosophe, Chimiste dans son laboratoire, Souffleur ou Philosophe occupé de sa lecture, le tableau du Louvre (1734) est-il un emblème? L'hypothèse retenue, que cette peinture donne figure à un philosophe chimiste et non à un charlatan ou à un alchimiste, se construit sur le rapprochement du tableau et du libelle anonyme intitulé Philosophe, mis en circulation d'après Voltaire dans les années 1730. (shrink)

Mercedes Pinto, cuya trayectoria se desarrolló desde Canarias, su tierra de nacimiento, hasta México, pasando por Uruguay, conoció el éxito por sus escritos y actividades culturales y luego quedó sumida en el olvido. Sin embargo, la adaptación de su “novela” autobiográfica Él (Montevideo, 1926) a la gran pantalla por Luis Buñuel en 1952, le deparó otra vida al libro. Si en la obra literaria prevalece la autoficción y su claro compromiso feminista a favor del divorcio, adquiere nueva complejidad en (...) la película mexicana de Buñuel el estudio del caso clínico de la paranoia. Al ataque a una burguesía parasitaria se une una subversión del género del melodrama, cuyo falso final feliz pervierte los códigos establecidos, dejando que se imponga el principio de duda. Asimismo, la exploración de los roles sexuales, heredera de la corriente surrealista, rehúye toda simplificación maniquea y se afirma como objeto fascinante para toda labor hermenéutica. (shrink)

Ofrezco respuestas a lo que considero son los aspectos más destacados de las críticas de John Biro, James Freeman, David Hitchcock, Robert Pinto, Harvey Siegel y Luis Vega al modelo normativo para la argumentación que he desarrollado en Giving Reasons. Cada respuesta se articula en torno a una cuestión principal, i.e., la distinción entre normatividad constitutiva y regulativa dentro de los modelos de la Teoría de la Argumentación, la evaluación semántica de la argumentación, el concepto de justificación, las diferencias (...) entre el modelo de Toulmin y mi modelo de argumento y el análisis de la dimension pragmática de la argumentación. (shrink)

It is possible to find in Machiavelli an expression of the original consent to explain the origin of the political communities. This paper investigates this hypothesis in the approach of the roman political thought. With Lucretius and Cicero, it is clear the terms of the pact, covenant, consensus, and the primitivism of the difference between man and beasts, the fear and the common safety to founder the political community under the leadership of one man. The paper also debates the Aristotelian (...) premises of the political nature of man and explores some examples of the Machiavellian time, that aims to confirms the existence of the language of the Aristotelianism within the original consent. It concludes that Machiavelli does not have a substantial theory to explain the origins of the political community, because politics and its study requires the research of the cities in the historical mean. This contractual language in accordance with that Aristotelian is used as a rhetoric strategy in the beginning of the Discourses. (shrink)

La presente nota bibliográfica recopila la ingente obra de José Aldazábal, uno de los liturgistas españoles más fecundos en publicaciones de carácter sobre todo divulgativo, que, durante más de cuarenta años y formando parte del Centro de Pastoral Litúrgica de Barcelona, ha acompañado la pastoral litúrgica especialmente en España, pero también en los paísesiberoamericanos de lengua española. Interesará a los investigadores de la historia de la renovación litúrgica y a los estudiosos de la pastoral.

This paper presents a human-robot closely collaborative solution to cooperatively perform surface treatment tasks such as polishing, grinding, finishing, deburring, etc. The proposed scheme is based on task priority and non-conventional sliding mode control. Furthermore, the proposal includes two force sensors attached to the manipulator end-effector and tool: one sensor is used to properly accomplish the surface treatment task, while the second one is used by the operator to guide the robot tool. The applicability and feasibility of the proposed collaborative (...) solution for robotic surface treatment are substantiated by experimental results using a redundant 7R manipulator: the Sawyer collaborative robot. (shrink)

La vanguardia filosófica de la “nueva generación” argentina de la década de 1920 no ha sido objeto, como tal, de investigaciones precedentes, y el artículo comienza con una discusión al respecto. Se traza luego un panorama de las disputas ideológicas de la época, especialmente en Inicial, la revista donde mejor se expresó esa vanguardia filosófica. Las restantes secciones del artículo se abocan a sus filósofos más representativos: Miguel Ángel Virasoro, Vicente Fatone, Carlos Astrada y Ángel Vassallo. Se cotejan sus conceptos (...) sobre la crisis de Occidente y la misión histórica de la nueva generación. Pero el espiritualismo y el vitalismo característicos de sus planteos se observan luego también en sus críticas al tomismo y al positivismo, así como en sus reivindicaciones sobre la integralidad del espíritu, y en otras cuestiones metafísicas y políticas. Se señalan, finalmente, las principales direcciones posibles para más amplias investigaciones. The philosophical avant-garde of the Argentinean “new generation” in the 1920s is not as such subject of preceding research, and the paper begins with a discussion on this matter. An overview of the ideological disputes at the time is then outlined, especially concerning Inicial, the journal in which that avant-garde better expressed itself. The next sections of the paper deal with its most representatives philosophers: Miguel Ángel Virasoro, Vicente Fatone, Carlos Astrada and Ángel Vassallo. Their concepts are compared with regard to the crisis of the West and the historical mission of the new generation. But their approaches’ characteristic spiritualism and vitalism can then also be noticed in their criticism of Thomism and positivism, as well as in their claims about the integrality of spirit, and in other metaphysical and political questions. Finally the main possible directions for further research are pointed out. (shrink)

Resumen Este artículo expone la presencia de Hegel en la teoría psicoanalítica de Lacan: en primer lugar, el uso que este último hace de la dialéctica del amo y el esclavo para iluminar la dimensión imaginaria de la conciencia y el deseo, en segundo lugar, la recepción de la concepción hegeliana del lenguaje en conexión con la función simbólica y la constitución de la subjetividad, y finalmente la postura de ambos respecto de la relación entre saber y verdad. Los tres (...) aspectos contribuyen a iluminar la interpretación del concepto de sujeto en Lacan a la luz de la influencia hegeliana.This article exposes the presence of Hegel in the psychoanalytk theory of Lacan: first, the use that the latter makes of the dialectic of the master and the slave to illuminate the imaginary dimension of consciousness and desire, secondly, the reception of the Hegelian conception of language in connection with the symbolic function and the constitution of subjectivity, and finally the position of both with respect to the relationship between knowledge and truth. The three aspects contribute to illuminate the interpretation of the concept of subject in Lacan in light of the Hegelian influence. (shrink)

"Piensa globalmente y actúa localmente". Desde hace algunos años se viene escuchando esta máxima que inspira la vida cotidiana de muchas personas. Esta frase trata de reflejar la idea central del presente artículo y pone de manifiesto cómo toda acción humana repercute sobre la salud del planeta y por lo tanto sobre nosotros mismos.

Adorno's aesthetic is organized in fields of force, under which orbiting constellations of categories which reflect the truth of the managed world in the era of late capitalism. Understand the nuances of this aesthetic is preparing to reinterpret the world, so as to achieve the things forgotten by the concept. In this sense, the aesthetic becomes a way of reconnecting the human sciences with the reality, from the recovery of sensitivity troubled by the dominance of instrumental reason.