We propose a theory that relates perceived evidence to numerical probability judgment. The most successful prior account of this relation is Support Theory, advanced in Tversky and Koehler. Support Theory, however, implies additive probability estimates for binary partitions. In contrast, superadditivity has been documented in Macchi, Osherson, and Krantz, and both sub- and superadditivity appear in the experiments reported here. Nonadditivity suggests asymmetry in the processing of focal and nonfocal hypotheses, even within binary partitions. We extend Support Theory by (...) revising its basic equation to allow such asymmetry, and compare the two equations’ ability to predict numerical assessments of probability from scaled estimates of evidence for and against a given proposition. Both between- and within-subject experimental designs are employed for this purpose. We find that the revised equation is more accurate than the original Support Theory equation. The implications of asymmetric processing on qualitative assessments of chance are also briefly discussed. (shrink)

In both axiomatic theories and the practice of extensive measurement, it is assumed that a series of replicas of any given object can be found. The replicas give rise to a standard series, the "multiples" of the given object. The numerical value assigned to any object is determined, approximately, by comparisons with members of a suitable standard series. This prescription introduces unspecified errors, if the comparison process is somewhat insensitive, so that "replicas" are not really equivalent. In this paper, it (...) is assumed that the comparison process leads only to a semiorder, which allows for such insensitivity. It is shown that, nevertheless, extensive measurement can be carried out, provided that a certain set of (plausible) axioms is valid. Approximate measures, and their limits of error, can be derived from finite sets of semiorder observations. These approximate measures converge to ratio-scale exact measurement. (shrink)

The measurement of force is based on a formal law of additivity, which characterizes the effects of two or more configurations on the equilibrium of a material point. The representing vectors (resultant forces) are additive over configurations. The existence of a tight interrelation between the force vector and the geometric space, in which motion is described, depends on observations of partial (directional) equilibria; an axiomatization of this interrelation yields a proof of part two of Newton's second law of motion. The (...) present results (which were derived from a curious and deep isomorphism between force measurement and trichromatic color measurement) yield a kind of subunit, which needs to be incorporated into more complete axiomatizations of mechanics that would fulfill the Mach-Kirchhoff program. (shrink)

We use a sequential voluntary contribution game to compare the relative impact of a first-mover’s non-binding announcement versus binding commitment on cooperation. We find that a non-binding announcement and a binding commitment increase individual contributions to a similar extent. Since announced contributions systematically exceed commitments, in sessions with a non-binding announcement, second-movers tend to contribute more to the group activity than in sessions with a binding commitment. Yet, second-movers appear to be more motivated towards achieving a social optimum when the (...) first-mover uses commitment. We also find that a non-binding announcement has a higher impact on individual propensity to cooperate than the ex post contribution of the first-mover. However, the failure to make announced contributions decreases cooperation even though the first-mover is reassigned in every period. (shrink)

Quarterly publication discussing various topics in environmental ethics, including features, discussion papers, book reviews, editorial commentaries, and other text related to environmental philosophies. Some issues also include announcements and other news related to the environmental studies community.

Schematic conflict occurs when evidence is interpreted in different ways (for example, by different people, who have learned to approach the given evidence with different schemata). Such conflicts are resolved either by weighting some schemata more heavily than others, or by finding common-ground inferences for several schemata, or by a combination of these two processes. Belief functions, interpreted as representations of evidence strength, provide a natural model for weighting schemata, and can be utilized in several distinct ways to compute common-ground (...) inferences. In two examples, different computations seem to be required for reasonable common-ground inference. In the first, competing scientific theories produce distinct, logically independent inferences based on the same data. In this example, the simple product of the competing belief functions is a plausible evaluation of common ground. In the second example (sensitivity analysis), the conflict is among alternative statistical assumptions. Here, a product of belief functions will not do, but the upper envelope of normalized likelihood functions provides a reasonable definition of common ground. Different inference contexts thus seem to require different methods of conflict resolution. A class of such methods is described, and one characteristic property of this class is proved. (shrink)

Quarterly publication discussing various topics in environmental ethics, including features, discussion papers, book reviews, editorial commentaries, and other text related to environmental philosophies. Some issues also include announcements and other news related to the environmental studies community.

This research examines the association between attitudes on cheating and cognitive moral development. In this research, we use Rest's (1979a) Defining Issues Test, the Attitudes on Honesty Scale (Authors) and Academic Integrity Index (Authors); the last two are adaptations of the DIT. A total of 220 students from three universities participated in the study (66 psychology majors and 154 business majors). The data indicate that 66.4 percent of the students reported that they cheated in high school, college, or both high (...) school and college. Psychology majors scored higher than business majors on both the Defining Issues Test (Rest, 1979a) and the Attitudes on Honesty Scale (AHS, Authors). Using factor analysis, we found significant associations between students' ratings of the importance considerations present in the three cheating scenarios and their estimates of whether cheating would occur (i.e., the Academic Integrity Index). Finally, using logistic regression, we found that the scores on the Attitudes on Honesty Scale and Academic Integrity Index associate with the self-reported cheating behavior of college students. (shrink)

In 2003, a photograph taken by Richard Prince, Untitled (Cowboy) , sold at auction for $332,300. Some might be surprised that a photograph could garner such a sum, but, in this case at least, none more so than Jim Krantz. Krantz might be allowed a certain level of incredulity, for Prince's photograph was a photograph of another photograph, this one taken by Krantz himself. As far as copyright is concerned, Krantz's photograph and Prince's are the same (...) work, and so Krantz is almost certainly infringing on Prince. Copyright protects ‘authored works’, and not art works per se . And unfortunately, while copyright law assumes some metaphysical basis to its objects, this basis tends to go largely uninvestigated. In this paper, I work to develop a comprehensive, coherent, and consistent account of the ontology of authored works suitable for the purposes of copyright law. (shrink)

The dominant approach to environmental policy endorsed by conservative and libertarian policy thinkers, so-called “free market environmentalism”, is grounded in the recognition and protection of property rights in environmental resources. Despite this normative commitment to property rights, most self-described FME advocates adopt a utilitarian, welfare-maximization approach to climate change policy, arguing that the costs of mitigation measures could outweigh the costs of climate change itself. Yet even if anthropogenic climate change is decidedly less than catastrophic, human-induced climate change is likely (...) to contribute to environmental changes that violate traditional conceptions of property rights. Viewed globally, the actions of some countries—primarily industrialized nations—are likely to increase environmental harms suffered by other countries—less developed nations that have not made any significant contribution to climate change. It may well be that aggregate human welfare would be maximized in a warmer, wealthier world, or that the gains from climate change will offset environmental losses. Yet such claims, even if demonstrated, would not address the normative concern that the consequences of anthropogenic global warming would infringe upon the rights of people in less-developed nations. As a consequence, this paper calls for a rethinking of FME approaches to climate change policy. (shrink)

The problem which I propose to consider is not whether the distinctions past, present, future, characterize the form of time in such a way that whatever may be true concerning the reality of one of these characteristics must be equally true of the others, but the more particular question of the kind of existence which belongs to the content of the past, or its constituents as events.

For two hundred years, Americans have believed that they have an obligation to improve the lot of humanity, a belief that has consistently shaped U.S. foreign policy. Yet within this consensus, there are two competing schools of thought: the "exemplarist" school (Brands' term) which holds that what America chiefly owes the world is the benign example of a well-functioning democracy, and the "vindicationist" school which argues that force must sometimes supplement a good example. In this book, H.W. Brands traces the (...) evolution of these two schools as they emerged in the thinking and writing of the most important public thinkers of the past two centuries. (shrink)

First published in 1962, Freedom and History expresses a deep concern about freedom and the way it is imperilled by misunderstandings. Professor Lewis examines works of T.H. Green and compares Green with Locke and Rousseau.

Festschrift volume in honour of Mohd. Sabir Hussain, b. 1935.

Die drei Bücher "Vom rechten Handeln" beschäftigen sich mit dem Verhältnis zwischem dem "Sittlichen" und dem "Nützlichen". Cicero vertritt die These, dass beide Begriffe "von Natur aus" identisch sind. Einen Konflikt zwischen dem Sittlichen, d.h. den aus den Tugenden folgenden Pflichten, und dem Nützlichen kann es daher im Grunde nicht geben. Was immer auf den ersten Blick sich als Konfliktfall darstellen mag - und Cicero geht zahlreiche Beispiele durch -, erweist sich bei genauer Betrachtung stets als scheinbarer Konflikt, der Nutzen (...) als scheinbarer Nutzen. Cicero verfasste "De officiis" als Vermächtnis an seinen Sohn in den Monaten nach der Ermordung Caesars. Von allen Werken Ciceros hat es am stärksten auf die Nachwelt gewirkt, von der Antika an, über Mittelalter, Renaissance bis hin zur Neuzeit; es wurde 1465 in Mainz als erstes gedruckt und am häufigsten übersetzt und kommentiert. Voltaire und Friedrich der Große hielten "De officiis" für das beste Buch über Moral. Die Übersetzung Karl Büchners sucht so wörtlich wie möglich die kunstvolle Sprache Ciceros nachzubilden. Der lateinische Text folgt der maßgeblichen Ausgabe von C. Atzert, die zahlreichen Abweichungen werden ausführlich kommentiert. Mit Einführung, Verzeichnis der Eigennamen und Literaturhinweisen. (shrink)

It is argued that dispositional explanations are radically incomplete causal explanations that are employed when (1) a description of the stimuli is insufficient to account for the object's response and (2) not enough is known about the object to specify what its specific causal contribution is. ryle's failure to refer to the causal contribution of the organism in his account of dispositions is regarded as a serious weakness.