To-day economics is considered the most highly developed discipline among the social sciences. Yet, its explanatory and predictive powers are admitted by all hands to be weak compared to those possessed by the physical sciences. This weakness is still frequently explained by apologetic references to the relatively tender age of economic science. This apparently implies that in the normal course of time economics will grow up and achieve the stature and powers of say, physics. The trouble with this argument is (...) that economics is certainly as old as physics. If it lags behind other disciplines in predictive and explanatory powers, lack of time cannot be the cause. (shrink)

In his article “Reflexive Predictions” in a recent issue of this Journal [1], Professor Roger C. Buck refers to our theorem concerning correct public prediction of economic and, in general, social events [2]. Unfortunately he misunderstands the nature of our theorem. He begins by stipulating the infinite regress which originally led to the belief that correct public prediction in the social sciences might be impossible: the forecaster who attempts to take into account the agent's reaction to his public prediction, finds (...) his adjusted public prediction again falsified by the agent's reaction to it, and so on ad infinitum [3]. Professor Buck then makes an admittedly tempting mistake. He argues that, provided the sequence of public predictions—each one adjusted for the agent's reaction to its predecessor—converges towards some value, correct public prediction is possible: at the end of a sequence of falsified predictions the forecaster, as it were, catches up with the agent. (shrink)

We compare Carnap's and Kuhn's views on science. Although there are important differences between them, the similarities are striking. The basis for the latter is a pragmatically oriented semantic conventionalist picture of science, which suggests that the view that post-positivist philosophy of science constitutes a radical revolution which has no interesting affinities with logical positivism must be seriously mistaken.

Within the planning discourse two poles have materialised over the last decades: a participatory ideal guided by substantive rationality, opposed to an algorithmic governmentality subordinated to instrumental reason. This rift within socialist thought is also observable when it comes to the discovery of needs. The paper understands this discovery procedure primarily as a forecasting problem and demonstrates how many authors dedicated to a participatory planning process call for consumers to write down their desires in the form of wish lists. As (...) a response to this epistemically questionable discovery procedure, the state of the art in capitalist demand-forecasting at enterprises like Amazon is presented, where machine-learning algorithms excel at modelling interrelated time series on a global level by extrapolating demand patterns in real-time. The paper closes with a proposal to reconfigure this predictive apparatus for socialist ends and raises questions concerned with the political implications of centralising decision-making in black-box algorithms. (shrink)

'Volgens de Duitse denker Carl Schmitt is zonder vijandbeeld geen politiek mogelijk,' schreven Coen Simon en Frank Meester aan Arnon Grunberg. Zij vroegen hem Het begrip politiek van Carl Schmitt (1888-1985) te lezen om na te gaan wat hij ons nu nog te zeggen heeft. Hoeveel natiestaat hebben wij nodig? Hoeveel vijanden? Waartoe dient politiek? En is een samenleving zonder oorlog en geweld mogelijk? Aan de hand van Schmitt en denkers als Walter Benjamin en Jacques Derrida probeert Grunberg (...) antwoord te geven op die vragen. 'Onze cultuur heeft de vegetarische slager voortgebracht en zal uiteindelijk ook de geweldloze oorlog produceren. Hoe die er precies uit zal zien is onduidelijk, maar Schmitts vermoeden dat die oorlog om de oorlog eens en voor altijd uit te roeien gruwelijk zal zijn lijkt me gerechtvaardigd,' aldus Grunberg. Maar ook stelt hij dat er geen rechtvaardigheid kan bestaan als het geweld wordt afgezworen. In Vriend & vijand legt Grunberg de vinger op zowel de zere plekken van de parlementaire democratie als de kritiek erop. Vrienden en vijanden van deze democratie mogen dit essay niet aan zich voorbij laten gaan"--Back cover. (shrink)

This study of axiology explores the axiocentricity of being human. Human beings dwell in the realm of value. Values are not simply what persons have; values in large part are what persons are. The mystique of values is analyzed here in terms of their cultural, phenomenological, and ontological status. The relationship between science and values is debated. Values should not be submitted to reductionism. Postmodernism raises new problems for the future of a philosophy of values. Yet, we may direct our (...) hopes toward happiness, universalism, and humanism as inseparable from value-life. (shrink)

Our aim is to illuminate the interconnected notions of meaning and truth. For this purpose, we investigate the relationship between meaning theories based on commonsensical ‘means that’ and interpretive truth theories. The latter are Tarski–Davidson-style truth theories serving as meaning theories. We consider analytically true semantic principles containing ‘means’ and ‘means that’ side to side with ‘denotes’, ‘satisfies’, and ‘true’, which constitute the extensional semantic constants of interpretive truth theories. We show that these semantic constants are definable in terms of (...) ‘means’ and ‘means that’ operators. The definitions themselves are semantic principles in the role of meaning postulates. We extend a meaning theory based on ‘means that’ by adjoining semantic principles to the axioms of the theory. Then, all axioms, hence all theorems, of a corresponding interpretive truth theory are provable in the extension of the meaning theory. Furthermore, every interpretive truth theory can be included in the extension of a corresponding meaning theory. Therefore, the extension of a meaning theory resulting from the adjunction of semantic principles constitutes a unified meaning-and-truth theory since it includes both a meaning theory and an interpretive truth theory. (shrink)

In diesem Aufsatz frage ich, ob Klang jemals Nicht-Klangliches zum In- halt haben kann beziehungsweise darstellen kann. Denn diese philoso- phisch bearbeitbare Frage liegt der Frage, die die Konferenz stellt – wie Klang Träger und Ausdruck von Historischem sein kann – zu Grunde. Ich unterscheide zwischen der Bedeutung und dem Inhalt eines Klangs oder eines Sound-Datums.2 Ebenso unterscheide ich zwischen einem Klanginhalt, der beabsichtigt ist, und einem Klanginhalt, der sich ab- sichtslos darstellt. Ich frage, welche Art von Sound-Datum für die (...) Ge- schichtsschreibung, deren Hauptquelle klangliche Materialien sind, be- sonders wertvoll ist. (shrink)

Having drawn the distinction between logic as a discipline and logic as organon, this short paper focuses on the latter, the purpose of which is twofold. First, it highlights the importance of second-order logic and modal logic in ontology. To this aim, the role of second-order logic is illustrated in formalizing realist ontology committing to the existence of properties. It is also emphasized how quantified modal logic helps clarify de re/de dicto distinction that implicitly takes place in ordinary language. Secondly, (...) the paper concentrates on the significance of modal logic in the philosophy of language. In pursuing this goal, we considered Kripke’s notions of rigid designator, necessary a posteriori and contingent a priori statements. Given the definition of rigid designator, it is possible to prove in quantified modal logic that an identity between proper names, like “Hesperus” and “Phosphorus”, if true, is necessarily true. But the truth of the identity statement “Hesperus = Phosphorus” is known a posteriori. Therefore, there are necessary a posteriori truths. There are also contingent a priori true statements like “The length of stick S at time t 0 = one meter”, as there exists a possible world in which this statement is false. (shrink)

We construct a framework of two-dimensional (2D) semantics for predicate-functor languages with operation symbols and free variables. We show how the satisfaction conditions (at a world) of predicates are determined by their meaning specifications (at the same world or at a different one).

We compare Carnap's and Kuhn's views on science. Although there are important differences between them, the similarities are striking. The basis for the latter is a pragmatically oriented semantic conventionalist picture of science, which suggests that the view that post-positivist philosophy of science constitutes a radical revolution which has no interesting affinities with logical positivism must be seriously mistaken.

Thomas Kuhn's post-1980 writings have increasingly emphasized the role played by language in the characterization of scientific revolutions and incommensurability. We argue that Kuhn's `linguistic turn' can be understood best against the background of a Whorfian conception of language and certain neo-Kantian themes. While this enables Kuhn to refine and unify his earlier views, it also creates some difficulties.

Selections from Durkheim's writings focus on the nature of his conception of society and its moral context.

In Professional Ethics and Civic Morals , Emile Durkheim outlined the core of his theory of morality and social rights which was to dominate his work throughout the course of his life. In Durkheim's view, sociology is a science of morals which are objective social facts, and these moral regulations form the basis of individual rights and obligations. This book is crucial to an understanding of Durkheim's sociology because it contains his much-neglected theory of the state as a moral (...) institution, and it provides an understanding of his critique of anomie and egoistic individualism. The growing interest in cultural revolution and moral regulation make this edition of Durkheim's classic work especially timely. The new preface by Bryan Turner sets the book in its intellectual and historical context, and illustrates the relevance of this work to present day debates on the state, society, and moral regulation. (shrink)