Confronted by contemporary neoliberal crisis, apparently rooted in economistic, or even nihilistic worldviews, the task for the [sociologist] is not simply to impose … critique from without, but to...

The paper reports the findings of a study of CPAs designed to determine whether they tend to find factors related to their professional environment (especially the guides to professional conduct of the American Institute of Certified Public Accountants) to be more helpful than factors related to their business environment when faced with ethics problems. Like internal auditors surveyed earlier, the CPAs tend to view a number of factors in their business environment to be even more helpful than factors related to (...) their professional environment in dealing with ethical dilemmas. Implications for CPAs as individuals and for their professional associations are discussed. (shrink)

It is widely mooted that a plausible computational cognitive model should involve both symbolic and connectionist components. However, sound principles for combining these components within a hybrid system are currently lacking; the design of such systems is oftenad hoc. In an attempt to ameliorate this we provide a framework of types of hybrid systems and constraints therein, within which to explore the issues. In particular, we suggest the use of system independent constraints, whose source lies in general considerations about cognitive (...) systems, rather than in particular technological or task-based considerations. We illustrate this through a detailed examination of an interruptibility constraint: handling interruptions is a fundamental facet of cognition in a dynamic world. Aspects of interruptions are delineated, as are their precise expression in symbolic and connectionist systems. We illustrate the interaction of the various constraints from interruptibility in the different types of hybrid systems. The picture that emerges of the relationship between the connectionist and the symbolic within a hybrid system provides for sufficient flexibility and complexity to suggest interesting general implications for cognition, thus vindicating the utility of the framework. (shrink)

. This paper presents the findings of two surveys conducted in April 2003 of Chartered Life Underwriters (CLUs) and Chartered Financial Consultants (ChFCs) who are members of the Society of Financial Service Professionals. The first survey of 3000 CLUs and ChFCs – the life insurance industry’s most highly regarded professionals – was aimed at identifying the key ethical issues faced by professionals working in the life insurance industry today. A comparison of these findings with those of earlier studies conducted in (...) 1990 and 1995 suggests that while the key ethical issues facing those working in the life insurance business today are essentially the same as those encountered during industry’s highly troubled ethical environment of the early 1990s, these issues are perceived as presenting somewhat less serious problems than in the past. The second survey of 3000 CLUs and ChFCs was aimed at determining the extent to which these professionals perceive the industry created Insurance Marketplace Standards Association (IMSA) as having contributed to any change in the ethical environment that has taken place. The findings suggest that IMSA has played an important role in influencing senior managers to more strongly encourage and support ethical market conduct, a critical step in improving the industry’s ethical environment. (shrink)

Van Gelder presents the dynamical hypothesis as a novel law of qualitative structure to compete with Newell and Simon's (1976) physical symbol systems hypothesis. Unlike Newell and Simon's hypothesis, the dynamical hypothesis fails to provide necessary and sufficient conditions for cognition. Furthermore, imprecision in the statement of the dynamical hypothesis renders it unfalsifiable.

Based on the findings of several research studies of professionals in both the property-liability insurance industry and the life insurance industry, the paper makes and supports several important points. First, ethical challenges in the insurance industry involve not only a series of ethical dilemmas frequently faced by those working in the business, but also a variety of factors that hinder those working in the industry as they seek to resolve the ethical dilemmas encountered in the course of their work. Both (...) of these two components of ethical challenges must be understood by those in the financial services industry who will deal with insurance operations in the future. Second, whereas the life insurance business and the property-liability insurance business have traditionally been viewed as being quite different from one another and still are in terms of operations and regulation, the research findings show that they are no longer very different in terms of the key ethical challenges faced by those working in the two segments of the industry. The paper shows how during the past decade the ethical challenges in the property-liability insurance industry have become quite similar to those in the more troubled life insurance industry. (shrink)

This paper compares the findings of studies of seven groups of professionals in various key segments of the fields of accounting and insurance conducted during 1990 through 1994 in an effort to determine the extent to which they tend to rely on various factors in their business and professional environments for help in behaving ethically in the course of their work. Commonalities among the findings for these rather diverse groups are highlighted and their possible implications for business and the professions (...) are discussed. (shrink)

Recently it has become clear that integrins and other adhesive receptors play an important role in the control of cell growth and differentiation. In various cell types, anchorage to the extracellular matrix via integrins strongly influences the ability of the cell to respond to soluble mitogens or to differentiation factors. Thus adhesive receptors must generate signals that influence cell behavior. Some of the pathways of adhesion receptor signaling are now beginning to be worked out, but there is still much to (...) learn. In particular, the mechanistic basis for the cooperation between anchorage signals and signals from soluble growth and differentiation factors remains ill‐defined. This review will examine some of the current information linking adhesion receptors to control of mitogenesis and differentiation. (shrink)

Strong reciprocity is an effective way to promote cooperation. This is especially true when one not only cooperates with cooperators and defects on defectors (second-party punishment) but even punishes those who defect on others (third-party, “altruistic” punishment). Some suggest we humans have a taste for such altruistic punishment and that this was important in the evolution of human cooperation. To assess this we need to look across a wide range of cultures. As part of a cross-cultural project, I played three (...) experimental economics games with the Hadza, who are hunter-gatherers in Tanzania. The Hadza frequently engaged in second-party punishment but they rarely engaged in third-party punishment. Other small-scale societies engaged in less third-party punishment as well. I suggest third-party punishment only became more important in large, complex societies to solve more pressing collective-action problems. (shrink)

In his well-known Knowledge Argument (KA) Frank Jackson attempted to show that physicalism is false by offering a case that allegedly showed that a complete physicalist description of the world leaves something crucial out, namely the phenomenal qualities of experience. Eventually Jackson himself retracted and claimed that the interesting task is to explain where and why intuition-pumping arguments against physicalism such as the KA go wrong. This is exactly the task that occupies this paper: to discuss and criticize three (...) of the most important diagnoses of the KA’s weak points and to offer my own view about the latter. Along the way, several important but often neglected features of the KA are expounded and clarified. (shrink)

Institutions generate cooperative benefits that explain why they exist and persist. Therefore, their etiological function is to promote cooperation. The function of a particular institution, such as money or traffic regulations, is to solve one or more cooperation problems. We go on to argue that the teleological function of institutions is to secure values by means of norms. Values can also be used to redesign an institution and to promote social change. We argue, however, that an adequate theory of institutions (...) should not be ‘moralized’ in that they should not be defined in terms of the values they are supposed to promote. (shrink)

Epigenetic information is encoded by DNA methylation and by covalent modifications of histone tails. While defined epigenetic modification patterns have been frequently correlated with particular states of gene activity, very little is known about the integration level of epigenetic signals. Recent experiments have resulted in the characterization of several epigenetic adaptors that mediate interactions between distinct modifications. These adaptors include methyl‐DNA binding proteins, chromatin remodelling enzymes and siRNAs. Complex interactions between epigenetic modifiers and adaptors provide the foundation for the stability (...) of epigenetic inheritance. In addition, they also provide an explanation for the long‐range effects of epigenetic mechanisms. We propose that a major aspect of epigenetic regulation lies in the modification of chromosome architecture and that local changes in gene expression would be secondary consequences. This view is consistent with many results from recent genomic analyses. BioEssays 25:792–797, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Darwin's theory of evolution brought to an end the static view of nature. It was no longer possible to think of species as immortal, with secure places in nature. Fluctuation of population could no longer be thought of as occurring within definite limits which had been set at the time of creation. Nor was it any longer possible to generalize from the differential reproductive potentials, or from a few cases of mutualism between species, that everything in nature was “fitted to (...) produce general ends, and reciprocal uses.” 134 The appeal to “design” could no longer be substituted for answers to questions concerning animal demography. Instead, the dynamics of a population had to be viewed as the outcome of species' struggle against animate and inanimate factors in the environment. Both the members of a species and the environmental factors tend to vary randomly, and therefore neither evolution nor population dynamics could be fully understood alone. For this reason Darwin's linking of the two subjects was inevitable and not merely an historical accident. Since Darwin had shown that no automatic equilibrium existed, he demonstrated the importance of closer study of the causes of population dynamics and extinction. He also indicated that an understanding of population depends upon the development of a broad knowledge in ecology.Viewed from another direction, Darwin's work ended the early modern era of population studies by clarifying three interrelated problems which were important for understanding population: extinction, distribution, and the nature of species. The components of his answer had been discussed in the eighteenth century, but there had not existed enough evidence for the completion of the revolution in thought which had then begun. At the beginning of the nineteenth century, Playfair found the evidence for extinction conclusive, and, in spite of Lamarck, Curvier convinced the scientific world that there could no longer be any doubt about it. This was a step the importance of which, with his limited knowledge of biogeography and population, Cuvier could not have fully realized. Lamarck attempted, with his evolutionary theory, to circumvent the necessity for admitting extinction, but he overestimated the adaptability of organisms and in doing so he underestimated the importance of competition and the whole field of ecology. On the other hand, he was not willing to let questions such as the origin of species remain taboo to science. The origin of species was a biogeographical as well as a paleontological question. Humboldt correlated environment with the distribution of species and conveyed the impression that plant communities are subject to change. De Candolle, following the lead of Linnaeus and Humboldt, emphasized the ecological aspects of biogeography, not only the importance of habitat and range, clearly showing the ecological effects of competition. The entomologists Kirby and Spence took a faltering step toward understanding the relationship between population and ecological role, but they fell short of any significant new conclusions. Neither they nor Swainson could fully comprehend the new perspective of De Candolle.Lyell was able to bring together the evidence from these three lines of investigation and weave them into an important synthesis that almost accomplished that Darwin later did. Although opposing Lamarck's theory of evolution, Lyell had a dynamic view of ecology. He realized that population dynamics offered an important key to the understanding of biogeography. Since he knew that species become extinct, he investigated closely the factors which could either preserve or extinguish species. While explaining these factors, he described the interrelationships of species in greater detail than had ever been done before. Forbes continued to develop Lyell's ecological concepts, and his first-hand field experience enabled him to describe biotic communities more concretely than Lyell had.Having the advantages of Lyell's understanding and his own experience from a global voyage, Darwin could take the final step from the static to the dynamic concept of life. He had seen populations fluctuating and also fossil species in South America, and on the Galapagos Islands he had encountered a biogeographical problem that could not be credibly solved without the idea of evolution. However, the bare idea of evolution did not fully answer his questions. He sought physiological causes of extinction before he read Malthus and realized that De Candolle and Lyell had correctly emphasized the importance of competition. Darwin found that, in order to understand evolution, he needed to improve his understanding of ecology. He wanted to know when populations were most easily decimated, how extensive were competition and cooperation, what effects parasites have upon populations, and what changes occur in biotic communities when a species is either added or subtracted. He contributed to some extent to answering these questions. Though there remained much for others to do, there was now a new and more secure theoretical framework within which later studies could be interpreted. As Ernst Mayr has observed, Darwin's “consistent thinking in terms of population has had an impact on biological theory and practice which is second only to his sponsorship of natural selection as the mechanism of evolution.” 135. (shrink)

I have attempted to clarify some of the pathways in the development of Darwin's thinking. The foregoing examples of influence by no means include all that can be found by comparing Darwin's writings with Humboldt's. However, the above examples seem adequate to show the nature and extent of this influence. It now seems clear that Humboldt not only, as had been previously known, inspired Darwin to make a voyage of exploration, but also provided him with his basic orientation concerning how (...) and what to observe and how to write about it. An important part of what Darwin assimilated from Humboldt was an appreciation of population analysis as a tool for assessing the state of societies and of the benefits and hardships which these societies can expect to receive from the living world around them.Darwin exhibited in his Journal of Researches a casual interest in the economic and political conditions of the countries he visited, but these considerations were much less important to him than to Humboldt. Instead, Darwin, with the assistance of Lyell's Principles of Geology, shifted from Humboldt's largely economic framework to a biological one built around the species question. This shift led Darwin away from a consideration of how the population biology of animals was related to man's economy to focus instead upon how population biology fitted into the economy of nature.Humboldt's Personal Narrative served very well as a model for Darwin's Journal of Researches, thereby helping Darwin gain scientific eminence. The Journal of Researches, like virtually all of Humboldt's writings, was a contribution to scientific orthodoxy. But Darwin had, along the way, acquired an urge to do more than just add his building blocks to the orthodox scientific edifice. He decided to rearrange those blocks of knowledge into a different structure, and for that task neither Humboldt's Personal Narrative nor any other of his works could serve as a model. Humboldt had lacked the confidence which Darwin needed that biogeography and the origin of species could be understood. Humboldt had not explored very far the possible connections between biology and geology. Nor had he provided a general synthetic account of population biology. Had he done so, he might have been more explicit about the extent of his endorsement of Malthus. But even if he had, Humboldt's strong orientation toward cooperation would probably have inhibited his recognition of the importance of competition in nature.Lyell, who had also benefited from reading Humboldt, gave Darwin insights that were lacking in Humboldt's Personal Narrative. Lyell admirably demonstrated how stratigraphy, paleontology, biogeography, and population biology could be interrelated, and his reasons for doing so were essentially the same as Darwin's. Lyell's understanding of biogeography and ecology came from the writings of Augustin-Pyramus de Candolle as much as from Humboldt's, and from the former Lyell derived an appreciation for the importance of competition and also a confidence that the mysteries of biogeography could be explained.117 Furthermore, Lyell's discussion of all these subjects and also of evolution in his Principles of Geology is a good synthetic argument that was the ideal model for Darwin's greatest book.Darwin, having become convinced that species change through time, was able to synthesize in his mind the contributions which he had derived from the writings of Humboldt and Lyell as they applied to the species question. When Darwin wrote his Journal of Researches there were two large gaps in his thinking about evolution that bothered him—the mechanism of evolution and the causes of extinction. It was only after reading Malthus in 1838 that he realized, as Lyell had more or less pointed out, how important was competition in nature. He now had the general outlines for his theory, and in the 1845 abridged edition of his Journal, now retitled The Voyage of the Beagle, he inserted a fuller discussion of competition in nature which showed his awareness of its importance as an ecological factor.118. (shrink)

Alex Gourevitch’s From Slavery to the Cooperative Commonwealth is a valuable contribution to republican historiography: in reconstructing the ideas of the 19th century American labour republicans, this work significantly expands and enriches our appreciation of the classical republican tradition. While the labour republicans are convincingly shown to have made important contributions to that tradition, stronger claims that they fundamentally transformed republicanism are less persuasive.

The exploration of the mechanisms of cultural heredity has often been regarded as the key to explicating human uniqueness. Particularly early imitative learning, which is explained as a kind of simulation that rests on the infant’s identification with other persons as intentional agents, has been stressed as the foundation of cumulative cultural transmission. But the question of what are the objects of this mechanism has not been given much attention. Although this is a pivotal point, it still remains obscure. I (...) will characterize the notion of action-types and show why they are the genuine objects of cultural heredity. However, this answer is in conflict with the concept of imitation, and the problem arises that, if imitation is conceptualized as simulation and explained in terms of the cognition of infants, the objects of cultural transmission seemingly cannot be passed on by imitation. In order to solve this problem, I propose reconsidering the concept of imitation and to conceptualize imitation as a cooperative activity of infants and adults. (shrink)

Brain function depends on the cooperation between highly specialized cells. Neurons generate electrical signals and glial cells provide structural and metabolic support. Here, I propose a new kind of job‐sharing between neurons and astrocytes. Recent studies on primary cultures of highly purified neurons from the rodent central nervous system (CNS) suggest that, during development, neurons reduce or even abandon cholesterol synthesis to save energy and import cholesterol from astrocytes via lipoproteins. The cholesterol shuttle may be restricted to compartments distant from (...) the soma including synapses and may be regulated by electrical activity. Testing these hypotheses will help to improve our still insufficient understanding of brain cholesterol metabolism and its role in neurodegeneration. BioEssays 25:72–78, 2003. © 2002 Wiley Periodicals, Inc. (shrink)

This paper seeks to challenge the “fixed line” between disciplines by exploring the interconnections of Sociology and Caribbean Literature. It highlights the Caribbean author as a social activist and policymaker whose aim is to agitate for improvement in various social conditions. The writings of three Caribbean authors—Erna Brodber of Jamaica, as well Frank McField and Roy Bodden of the Cayman Islands—are examined. Through their published and unpublished works, through their fiction and non-fiction, the interconnection between Sociology and Caribbean Literature (...) is explored. Their writings become alternative narratives that address various sociological issues, as the writers are lauded for their social activism which gave a small community in Jamaica its history and which pleads for the youth and agitates for education in the Cayman Islands. These writers, some of whom are trained sociologists, use their training and knowledge in this field and their expertise in creative writing to demonstrate that the lines of demarcation between the disciplines are becoming increasingly blurred. The paper concludes that this fusing of the disciplines means Caribbean authors can be viewed as social activists and policymakers whose works posit new thoughts and present new possibilities to ailing Jamaica and Cayman societies. (shrink)

The historical development of a field of human knowledge progresses like the solution of a jig-saw puzzle, the full extent of which is completely unknown. What begins as an ocean may become only a lake; what starts as a grove of trees may develop into a forest. As study advances through the decades, the situation is repeatedly surveyed and the interpretation of the whole is modified to accord with the added information. For these reasons, conceptions and generalizations periodically undergo alteration, (...) as effectively stated and discussed by Cooper. Universal conformity in such conceptions is of course hardly to be expected in matters that deal largely with speculation rather than with simple experimental data. (shrink)

We introduce a solution concept for cooperative games with transferable utility and a coalition structure that is proportional for two-player games. Our value is obtained from generalizing a proportional value for cooperative games with transferable utility in a way that parallels the extension of the Shapley value to the Owen value. We provide two characterizations of our solution concept, one that employs a property that can be seen as the proportional analog to Myerson’s balanced contribution property; and a second one (...) that relies on a consistency property. (shrink)

The identification and valorization of unacknowledged, feminized forms of economic productivity has been an important task for feminist theory. In this article, we expand and rethink existing definitions of labour, in order to recognize the essential economic role women play in the stem cell and regenerative medicine industries, new fields of biomedical research that are rapidly expanding throughout the world. Women constitute the primary tissue donors in the new stem cell industries, which require high volumes of human embryos, oöcytes, foetal (...) tissue and umbilical cord blood. Such material is generally given for free in the advanced industrial democracies, constituted as a surplus (‘spare’ embryos) or waste (umbilical cord ‘afterbirth’, cadaveric foetuses, poor quality oöcytes) whose generative powers should not be withheld from others. At the same time, among impoverished female populations in developing nations, such biological material is now often procured through frankly transactional relations, where women undertake risky procedures for small fees. In each case, female bodily productivity is mobilized to support bioeconomic research, yet the economic value involved in these relations is largely unacknowledged. In this article, we consider both the gift economy and the transactional economy for reproductive tissues as a form of labour. In order to fully conceptualize the specificities of feminized productivity in the bioeconomy, we distinguish between earlier feminist theories of reproductive labour and the emerging practices generated by stem cell research, which we term regenerative labour. We consider how historical transformations in the regulation of feminized labour and the technical repertoires of stem cell research renegotiate the productivity limits of female reproductive biology, opening it out to novel and profitable forms of surplus value and enrolling women in complex negotiations over their role in bioeconomic activity. (shrink)

Queer objects are crucial to the narrative strategies of Dennis Cooper’s George Miles cycle where they support his exhaustive inventory of what it means to have a sexual type. In Frisk, Cooper transforms some objects into media to blur the boundaries between the writing subject and the objects he desires. The snuff photos, seen at too young an age, form the point of reference for Dennis the narrator’s erotic life but they acquire their force in a looping narrative (...) structure that calls into question their status as representation as well as their capacity to communicate. The novel thus elicits a new theorization of the relation between objects and media that discloses the stakes for fiction in a queer subjectivity that takes the self as another object at the same time as it probes the limits of realism. I situate Cooper in a genealogy of autofiction that extends back to Marcel Proust and Jean Genet and forward to J.T. LeRoy, Ben Lerner, Maggie Nelson, and Sheila Heti. The essay concludes by contrasting Cooper’s narrative achievements to the collapse of the writing subject into the autobiographical self in the more recent examples. (shrink)

The Belgian constitutional system is based upon the classic principle of the trias politica, which means that there is a separation of powers, but also a balanced cooperation between them. This article focuses on the Belgian federal Parliament, which bas been, together with the reform of the state from a unitary to a federal state, radically reformed.The Belgian Parliament nowadays is much better equipped to fulfil the function of checks and balances than thirty years ago. The number of staff and (...) the material equipment has increased considerably. At the same time, the emphasis in parliamentary activity bas shifted from the plenary session to the committees. The control upon the budget was long time a nearly empty box. Since the reform of 1989, it has become a much stronger instrument to hold the government to account. The annual debate on the budget is rather a genera/political evaluation of the government policy and is always ended by a vote of confidence.As for the law-making function, the share of the government in adopted laws is much higher than that of Parliament. Parliament bas still the power to amend government bills, but this power is limited because there is often already an agreement between the government and the parliamentary party of the coalition-parties. Nevertheless, several important amendments have been adopted in the last legislature.The control function bas evolved in different directions. Due to an enormous increase in the number of interpellations, they have lost a great part of their importance. They constitute no langer a real threaten to the survival of the government. On the other hand, there are more oral and written questions than before and the use of parliamentary inquiry committees has augmented considerably. Despite their inherent shortages, these committees play, an important role in preparing and correcting policy.The new challenges for Parliament in the future are serving as forum of the nation and the evaluation of laws. The core business of the trias politica, namely budgetary, law-making and controlling duties, also remain to befulfilled by Parliament. (shrink)

Cooperative child care among humans, where individuals other than the biological mother (allomothers) provide care, may increase a mother’s fertility and the survivorship of her children. Although the potential benefits to the mother are clear, the motivations for allomothers to provide care are less clear. Here, we evaluate the kin selection allomothering hypothesis using observations on Hadza hunter-gatherers collected in ten camps over 17 months. Our results indicate that related allomothers spend the largest percentage of time holding children. The higher (...) the degree of relatedness among kin, the more time they spend holding, supporting the hypothesis of nepotism as the strongest motivation for providing allomaternal care. Unrelated helpers of all ages also provide a substantial amount of investment, which may be motivated by learning to mother, reciprocity, or coercion. (shrink)

We present a cross-cultural analysis showing that the presence of an active or moral High God in societies varies generally along a continuum from lesser to greater technological complexity and subsistence productivity. Foragers are least likely to have High Gods. Horticulturalists and agriculturalists are more likely. Pastoralists are most likely, though they are less easily positioned along the productivity continuum. We suggest that belief in moral High Gods was fostered by emerging leaders in societies dependent on resources that were difficult (...) to manage and defend without group cooperation. These leaders used the concept of a supernatural moral enforcer to manipulate others into cooperating, which resulted in greater productivity. Reproductive success would accrue most to such leaders, but the average reproductive success of all individuals in the society would also increase with greater productivity. Supernatural enforcement of moral codes maintained social cohesion and allowed for further population growth, giving one society an advantage in competition with others. (shrink)

Franke, Dulcinati and Pouscoulous also examine a form of covert lying, by considering to what extent speakers use implicatures to deceive their addressee. The participants in their online signaling game had to describe a card, which a virtual coplayer then had to select. When the goal was to deceive rather than help the coplayer, participants produced more false descriptions (overt lies), but also more uninformative descriptions (covert lies by means of an implicature). [73].

Can civic engagement rescue the humanities from a prolonged identity crisis? How can the practices and methods, the conventions and innovations of humanities teaching and scholarship yield knowledge that contributes to the public good? These are just two of the vexing questions David D. Cooper tackles in his essays on the humanities, literacy, and public life. As insightful as they are provocative, these essays address important issues head-on and raise questions about the relevance and roles of humanities teaching and (...) scholarship, the moral footings and public purposes of the humanities, engaged teaching practices, institutional and disciplinary reform, academic professionalism, and public scholarship in a democracy. Destined to stir discussion about the purposes of the humanities and the problems we face during an era of declining institutional support, public alienation and misunderstanding, student ambivalence, and diminishing resources, the questions Cooper raises in this book are uncomfortable and, in his view, necessary for reflection, renewal, and reform. With frank, deft assessments, Cooper reports on active learning initiatives that reenergized his own teaching life while reshaping the teaching mission of the humanities, including service learning, collaborative learning, the learning community movement, and student-centered and deliberative pedagogy. (shrink)

In everyday causal explanations of human behaviour, known generally as folk psychology,' the causal powers of the mental seem to be taken for granted. Mental properties such as perceptions, beliefs, and desires, are all called upon in causal explanations of events that are deemed intentional. Jaegwon Kim's exclusion principle has led him to deny mental properties causal efficacy unless they are metaphysically reduced to physical properties, but what of their causal relevance? By giving up the assumption of causally efficacious mental (...) properties, has Kim put into question the explanatory value of explanations with mental descriptions? In other words, if a lower order neurological causal explanation involving a causally efficacious property is at hand, does it make the higher order mental explanation irrelevant and therefore redundant? If we are to save the explanatory importance of higher order predicates, and thus the causal explanations of the special sciences and folk psychology, we need an account of how such properties can be relevant as opposed to irrelevant in causal explanations, even though they may not be causally efficacious. Frank Jackson's and Philip Pettit's notion of program explanation tries to do just this. (shrink)

A vexing puzzle about vagueness, rationality, and evolution runs, in crude abbreviation, as follows: vague language use is demonstrably suboptimal if the goal is efficient, precise and cooperative information transmission; hence rational deliberation or evolutionary selection should, under this assumed goal, eradicate vagueness from language use. Since vagueness is pervasive and entrenched in all human languages, something has to give. In this paper, we focus on this problem in the context of signaling games. We provide an overview of a number (...) of proposed ways in which vagueness may come into the picture in formal models of rational and evolutionary signaling. Most argue that vague signal use is simply the best we can get, given certain factors. Despite the plausibility of the proposals, we argue that a deeper understanding of the benefits of vagueness needs a more ecological perspective, namely one that goes beyond the local optimization of signaling strategies in a homogeneous population. As an example of one possible way to expand upon our current models, we propose two variants of a novel multi-population dynamic of imprecise imitation where, under certain conditions, populations with vague language use dominate over populations with precise language use. (shrink)