Costly signalling theory has become a common explanation for honest communication when interests conflict. In this paper, we provide an alternative explanation for partially honest communication that does not require significant signal costs. We show that this alternative is at least as plausible as traditional costly signalling, and we suggest a number of experiments that might be used to distinguish the two theories.

In seeking to explain the evolution of social cooperation, many scholars are using increasingly complex game-theoretic models. These complexities often model readily observable features of human and animal populations. In the case of previous games analyzed in the literature, these modifications have had radical effects on the stability and efficiency properties of the models. We will analyze the effect of adding spatial structure to two communication games: the Lewis Sender-Receiver game and a modified Stag Hunt game. For the Stag Hunt, (...) we find that the results depart strikingly from previous models. In all cases, the departures increase the explanatory value of the models for social phenomena. (shrink)

It is widely believed that bringing parties with differing opinions together to discuss their differences will help both in securing consensus and also in ensuring that this consensus closely approximates the truth. This paper investigates this presumption using two mathematical and computer simulation models. Ultimately, these models show that increased contact can be useful in securing both consensus and truth, but it is not always beneficial in this way. This suggests one should not, without qualification, support policies which increase interpersonal (...) contact if one seeks to improve the epistemic performance of groups. (shrink)

This book is concerned with how we should think and act in our work, leisure activities, and time utilization in order to achieve flourishing lives. The scope papers range from general theoretical considerations of the value, e.g. 'What is a balanced life?', to specific types of considerations, e.g. 'How should we cope with the effects of work on moral decision-making?'.

This article presents the evolutionary dynamics of three games: the Nash bargaining game, the ultimatum game, and a hybrid of the two. One might expect that the probability that some behavior evolves in an environment with two games would be near the probability that the same behavior evolves in either game alone. This is not the case for the ultimatum and Nash bargaining games. Fair behavior is more likely to evolve in a combined game than in either game taken individually. (...) This result confirms a conjecture that the complexity of our actual environment provides an explanation for the evolution of fair behavior. Key Words: evolutionary game theory • Nash bargaining game • ultimatum game • fairness. (shrink)

In recent years, many scholars have suggested that the Baldwin effect may play an important role in the evolution of language. However, the Baldwin effect is a multifaceted and controversial process and the assessment of its connection with language is difficult without a formal model. This paper provides a first step in this direction. We examine a game-theoretic model of the interaction between plasticity and evolution in the context of a simple language game. Additionally, we describe three distinct aspects of (...) the Baldwin effect: the Simpson– Baldwin effect, the Baldwin expediting effect and the Baldwin optimizing effect. We find that a simple model of the evolution of language lends theoretical plausibility to the existence of the Simpson– Baldwin and the Baldwin optimizing effects in this arena, but not the Baldwin expediting effect. (shrink)

Journals regulate a significant portion of the communication between scientists. This paper devises an agent-based model of scientific practice and uses it to compare various strategies for selecting publications by journals. Surprisingly, it appears that the best selection method for journals is to publish relatively few papers and to select those papers it publishes at random from the available “above threshold” papers it receives. This strategy is most effective at maintaining an appropriate type of diversity that is needed to solve (...) a particular type of scientific problem. This problem and the limitation of the model is discussed in detail. (shrink)

Several recent attempts to develop models of moral reasoning have attempted to use some form of casuistry as a way to resolve the moral controversies of clinical ethics. One of the best known models of casuistry is that of Jonsen and Toulmin who attempt to transpose a particular model of casuistry, that of Roman Catholic confessional practice, to contemporary moral disputes. This attempt is flawed in that it fails to understand both the history of the model it seeks to transpose (...) and the morally pluralistic context of secular, postmodern society. The practice of casuistry which Jonsen and Toulmin wish to revive is a practice set in the context of a community with a shared set of moral values and structures of moral authority. Without a set of common moral values and rankings, and a moral authority to interpret cases the casuistry of the postmodern age will be pluralistic; that is, there will be many casuistries not just one. Keywords: casuistry, common morality, kinetics, moral authority, moral pluralism, morphology, paradigm cases, taxonomy CiteULike Connotea Del.icio.us What's this? (shrink)

Journal of Philosophy of Education, EarlyView.

Dwayne Tunstall turns to Lewis Gordon's Africana existential phenomenology in an effort to untangle Marcel's “reflective method” from its involvements with colonial racism. Tunstall's book interprets Marcel's religious existentialism as a development of his attempt to resist modernity's burgeoning dehumanization but observes that Marcel's sociopolitical thought leaves antiblack racism unexamined, which amounts to a failure to attend to “the most noxious form of depersonalization existing in the twentieth century.” In this review I call into question both Marcel's conception of “philosophy (...) proper” as well as Tunstall's appropriation of that conception in order to do philosophy personally. I am also hard pressed to accept Tunstall's implication that better responses to various manifestations of dehumanization are located in “extraphilosophical” practices or his more explicit claim that “theism” succeeds where philosophy proper has failed. (shrink)

A number of recent legal cases in the United States have considered both disability‐based exceptions to Covid‐19‐related mask mandates and disability‐based claims to stronger masking rules in states restricting the abilities of local governments to enforce mask mandates. We argue that a proper legal and ethical analysis of such cases requires understanding the distinction between disability accommodations and disability modifications. Disability accommodations are individualized adjustments that enable qualified individuals to perform jobs or achieve access on terms comparable to those experienced (...) by others. Disability modifications are programmatic changes to structures or policies that increase accessibility. We contend that in the context of mask mandates, modifications rather than accommodations are ethically desirable because modification‐oriented policies promote disability access in a way that treats all individuals fairly, avoiding the risk of promoting misinformation and uncertainty about the health benefits of masking. (shrink)

Stochastic developmental variation is an additional important source of variance – beyond genes and environment – that should be included in considering how our innate psychological predispositions may interact with environment and experience, in a culture-dependent manner, to ultimately shape patterns of human behaviour.

Este artículo propone una exploración de los textos compilados en Marginales de la Vida (1963), título publicado por el salvadoreño Arturo Ambrogi en 1912, a partir de los vínculos que se establecen en ellos entre la influencia de la estética modernista y el oficio periodístico practicado por el autor. Los objetivos centrales son aproximarse a la producción literaria de Arturo Ambrogi mediante un análisis de las tensiones generadas al momento de ubicar parte de su escritura dentro de la literatura salvadoreña, (...) centroamericana y latinoamericana de principios del siglo XX, a la vez que se postula la posible existencia de un híbrido literario que rehuyó en gran medida de los puntos de vista seguidos por otros autores contemporáneos de la región durante la época en estudio. (shrink)

This essay examines the theological and rhetorical concerns animating John Henry Newman’s evaluation of efforts to prove the existence of God and/or the truth of Christianity with philosophical arguments about the design of nature. Newman’s complex position on arguments from design ought to be interpreted in light of his broader theological understanding of the challenges posed to the practice of Christian faith in his nineteenth century context. These challenges required that apologetics first and foremost defend the truth of Christianity as (...) a religion of holiness, not as a religion of reasonableness. (shrink)

(1989). The gift of an interval: Michael Oakeshott's idea of a university education. British Journal of Educational Studies: Vol. 37, No. 4, pp. 384-397.

Magical ersatzism is the view that possible worlds are primitive abstract entities. In On the Plurality of Worlds, David Lewis presented what appeared to many to be a devastating argument against magical ersatzism. In this paper, I show that Lewis’ central argument does not succeed. Magical ersatzism remains a viable theory of possible worlds.

A number of authors from different theoretical perspectives have called for new interdisciplinary ways of considering learning within the higher education context. Peter Jarvis’s lifelong learning perspective offers a viable alternative, but lacks a strong theory of the person as self, agent and actor. In response I propose that Margaret Archer’s realist social theory has a particular utility for bridging ‘common dualisms’ as part of an interdisciplinary enquiry into higher education learning, and offers a strong theory of the person.

Although most natural law ethical theories recognize moral absolutes, there is not much agreement even among natural law theorists about how to identify them. The author argues that in order to understand and determine the morality (or immorality) of a human action, it must be considered in relation to the organized system of human practices within which it is performed. Such an approach, he argues, is to be found in the natural law theory of Thomas Aquinas, especially once it is (...) recognized that the logical structure of Aquinas's ethical theory is basically that of an Aristotelian science. In order to depict this structure and to explain how it bears upon the analysis of action, the author investigates a number of issues that have attracted the attention of Thomistic and Aristotelian scholarship. He examines the nature of practical reason, its relationship with theoretical reason, the derivation of lower from higher ethical principles, the incommensurability of human goods, the relationship between will and intellect, and the principle of double effect. The book will be useful to students and scholars interested in ethics, especially from an Aristotelian and/or Thomistic perspective. One appendix reproduces the Leonine text of the De malo (question 6), with facing English translation. Another appendix provides facing Latin text and English translation of the Summa Theologiae I-II (question 94, article 2). ABOUT THE AUTHOR: Kevin L. Flannery, S.J., author of many works on the history of logic--particularly Aristotelian logic--is dean of the faculty of philosophy and professor of the history of ancient philosophy at the Pontifical Gregorian University in Rome. PRAISE FOR THE BOOK: ""I know of no more careful and detailed study of Thomas's principle that the realms of theoretical and practical rationality are parallel. This principle is indeed central to an understanding of Thomas Aquinas's ethical thought, and Father Flannery examines its ramifications most perspicaciously. His book constitutes a valuable and important addition to the Thomistic literature. Father Flannery's writing is lucid, if not always extremely engaging, and his arguments are well supported by references to, and quotations from, the Aristotelian and Thomistic texts upon which they are based.""--The Medieval Review ""It would be hard to overstate the importance of this book at the present juncture of Thomistic studies.""--Ralph McInerny, University of Notre Dame ""... of interest and of great value mostly to specialists in Aquinas's ethics or moral theory more generally. Flannery presents complex matters clearly, and his explanations of the logical presuppositions of Aquinas's moral thought are always illuminating.""--Jean Porter, Theological Studies ""This is a significant work that belongs on the bookshelf of any serious student of Aquinas.... An important contribution to Thomistic studies.""--Irish Theological Quarterly ""This scholastic text will particularly appeal to thinkers interested in Aristotelian mathematics and logic and their practical integration into Thomistic natural law ethics. However, all natural law scholars must address the questions of context and method raised by Flannery's insights and his careful, precise textual analyses."" -- Beverly Whelton, Review of Metaphysics. (shrink)

The Ceci et al. article is consistent with tenure being a necessary condition for controversial research. In the absence of tenure, as in the United Kingdom, professors have been fired and suspended for politically controversial issues. There are a variety of reasons why tenure does not ensure that professors will engage in controversial research, including career interests and the desire to be liked. (Published Online February 8 2007).

In contemporary philosophy of science many theories of explanation are rooted in positivist or post-positivists accounts of explanation. This paper attempts to ground a phenomenological account of scientific explanation by using the works of Werner Heisenberg and Patrick Heelan. To explain something for Heisenberg is to describe what can be intersubjectively observed and conceptualized in an adequate language. However, this needs to be qualified, as not any adequate account will do. While Heisenberg thinks that Kant is right to think that (...) a priori concepts are the conditions which make science, and thus explanation, possible, he also believes pure a priori concepts have a limited range of applicability. Neils Bohr shared this belief with Heisenberg, but thinks human thought can go no further. However, Heisenberg never gave up on the idea that we could create new concepts that act as a priori grounds for quantum entities. To go beyond Heisenberg, I believe that we should look to Husserl’s account of Evidenz and the material a priori to help us think about a phenomenological account of explanation. (shrink)

This essay is a theological interpretation of John Henry Newman’s 1877 Preface to the third edition of the Via Media of the Anglican Church. Looking at the 1877 Preface through the lens of his earlier Anglican sermons, particularly his Parochial and Plain Sermons, this essay explores Newman’s general pneumatology and its influence on his ecclesiology and considers the spirituality underlying Newman’s Christocentric and Trinitarian vision of the Church as a mutually informing and correcting symbiosis of the spiritual, theological, and hierarchical (...) dimensions of Christian faith. (shrink)

This article considers the role of religion in general cultural initiation. The thrust of the argument pursued here is that, even in secular environments, schooling should offer some level of initiation into religious sensibility. Without this initiation, young people will not be in a position to engage with the religious dimension of general culture.

Presburger arithmetic is the first-order theory of the natural numbers with addition. We characterize sets that can be defined by a Presburger formula as exactly the sets whose characteristic functions can be represented by rational generating functions; a geometric characterization of such sets is also given. In addition, ifp= are a subset of the free variables in a Presburger formula, we can define a counting functiong to be the number of solutions to the formula, for a givenp. We show that (...) every counting function obtained in this way may be represented as, equivalently, either a piecewise quasi-polynomial or a rational generating function. Finally, we translate known computational complexity results into this setting and discuss open directions. (shrink)

Montesquieu's early life & career -- Montesquieu's major works & last years -- Examining the text : The spirit of laws -- Montesquieu's influence on the Founding Fathers.

In Laudato Si’, Pope Francis advances the concept of integral ecology to connect the environmental crisis with a range of social crises afflicting our societies. This concept is grounded in a theological commitment, but directed towards its political effects. Those two trajectories are represented by the encyclical’s articulation of a spiritual awakening described as an ecological conversion and its repeated calls to dialogue. Francis is not unaware of the risk that a naïve engagement in dialogue could stifle serious mitigation of (...) the crises we face. Yet, even with many dire warnings about outcomes, much of the contemporary discourse around the climate and biodiversity crisis runs the risk of underestimating the nature of the problem. Apocalyptic theology, specifically in the work of William Stringfellow, is proposed as a valuable interlocutor at this point. Stringfellow’s account of the Christian life as a battle with the forces of Death allows Christians to name that which we are converted from in an ecological conversion, strengthening the grounds upon which dialogue is engaged. (shrink)

This essay consists of responses to several papers on my book *Kingdoms of God.*.

This essay seeks to explore contemplation as it features in Christian theology and philosophy, both ancient and modern. Contemplation, in ancient philosophy, is transformed in Christian theology; nonetheless, it has the structure of what Jean Wahl calls ‘transascendance’, a rising to the heights. Although contemplation remains as a theme in modern Christian theology, it drops out in modern philosophy: that is, post-Renaissance philosophy. And yet it returns, both in analytic and continental philosophy, in the twentieth century. It returns, however, in (...) the mode of ‘transdescendance’: by way of conditions of possibility, and fundamental orientations. (shrink)

Explores Blanchot's philosophical meditation on three poets, Mallarmé, Hölderlin, and René Char alongside his contribution to Jewish philosophy.