We are concerned here with recursive function theory analogs of certain problems in chromatic graph theory. The motivating question for our work is: Does there exist a recursive (countably infinite) planar graph with no recursive 4-coloring? We obtain the following results: There is a 3-colorable, recursive planar graph which, for all k, has no recursive k-coloring; every decidable graph of genus p ≥ 0 has a recursive 2(χ(p) - 1)-coloring, where χ(p) is the least number of colors which will suffice (...) to color any graph of genus p; for every k ≥ 3 there is a k-colorable, decidable graph with no recursive k-coloring, and if k = 3 or if k = 4 and the 4-color conjecture fails the graph is planar; there are degree preserving correspondences between k-colorings of graphs and paths through special types of trees which yield information about the degrees of unsolvability of k-colorings of graphs. (shrink)

Milton Friedman has argued that corporations have no responsibility to society beyond that of obeying the law and maximizing profits for shareholders. Individuals may have social responsibilities according to Friedman, but not corporations.When executives make contributions to address social problems in the name of the corporation, they are doing so with other people''s (shareholders'') money. The responsibility of corporate executives is a fiduciary one, to serve as an agent for the corporation''s shareholders, and to uphold shareholders'' trust, which requires executives (...) to maximize the return to their shareholders, who can then, if they choose, contribute their own money to worthy causes. (shrink)

This paper was motivated by what we see as an inconsistency between a 1988 paper by Brennan and Buchanan expressing concern that public choice might erode public confidence in government and previous work by Buchanan, in particular Buchanan. The one advantage we saw with the 1988 paper was that it, all by itself, is all one needs to dismiss MacLean’s depiction of Buchanan as an ideologically rigid extremist. We also found the same inconsistency occurring simultaneously in Buchanan’s writing in 1979. (...) Yet, based on Wagner, we conclude that such inconsistencies may reflect a strength in Buchanan’s scholarship. (shrink)

We completely characterize the simple majority weighted voting game achievable hierarchies, and, in doing so, show that a problem about representative government, noted by J. Banzhaf [Rutgers Law Review 58, 317–343 (1965)] cannot be resolved using the simple majority quota. We also demonstrate that all hierarchies achievable by any quota can be achieved if the simple majority quota is simply incremented by one.

The literature fails to reflect general agreement over the nature of the services and procedures provided by bioethicists, and the training and core competencies this work requires. If bioethicists are to define their activities in a consistent way, it makes sense to look for common ground in shared communities of practice. We report results of a survey of the services and procedures among bioethicists affiliated with the University of Toronto Joint Centre for Bioethics (JCB). This is the largest group of (...) bioethicists working in healthcare organizations in Canada. The results suggest there are many common services and procedures of JCB bioethicists. This survey can serve as a baseline for further exploration of the work of JCB bioethicists. Common practices exist with respect to the domains of practice, individual reporting relationships, service availability within business hours and the education and training of the bioethicist. (shrink)

Background This paper describes the design, implementation, and process outcomes from three public deliberations held in three tribal communities. Although increasingly used around the globe to address collective challenges, our study is among the first to adapt public deliberation for use with exclusively Indigenous populations. In question was how to design deliberations for tribal communities and whether this adapted model would achieve key deliberative goals and be well received.Methods We adapted democratic deliberation, an approach to stakeholder engagement, for use with (...) three tribal communities to respect tribal values and customs. Public deliberation convenes people from diverse backgrounds in reasoned reflection and dialogue in search of collective solutions. The deliberation planning process and design were informed by frameworks of enclave deliberation and community-based participatory research, which share key egalitarian values. The deliberations were collaboratively designed with tribal leadership and extensive partner input and involvement in the deliberations. Each deliberation posed different, locally relevant questions about genomic research, but used the same deliberation structure and measures to gauge the quality and experience of deliberation.Results A total of 52 individuals participated in the deliberations across all three sites. Deliberants were balanced in gender, spanned decades in age, and were diverse in educational attainment and exposure to health research. Overall, the deliberations were positively evaluated. Participant perceptions and external observer datasets depict three deliberations that offered intensive conversation experiences in which participants learned from one another, reported feeling respected and connected to one another, and endorsed this intensive form of engagement.Conclusion The adapted deliberations achieved key deliberative goals and were generally well received. Limitations of the study are described. (shrink)

This study compares the level of ethics research published in 25 business-ethics journals and the Top-40 journals for the accounting, finance, and marketing disciplines. This research documents an increasing level of ethics research in the accounting and marketing disciplines starting in 1992. While the level of finance doctorates reported by the Association to Advance Collegiate Schools of Business (AACSB) has increased at a higher rate (40.4%) than accounting (18.4%) and marketing (32.2%) since 1995, this increase has not been reflected in (...) the level of ethics scholarship in finance. The level of ethics scholarship in finance remained relatively constant between 1987 and 2005 at an average of seven coauthor-adjusted articles per year. However, both the accounting and marketing disciplines now regularly publish approximately 50 coauthor-adjusted articles each year. (shrink)

Truth and correspondence, by G.J. Warnock.--Some exercises in epistemic logic, by A.N. Prior.--Symposium: Meaning and speech acts, by J.R. Searle.--Comments, by Zeno Vendler.--Comments, by Paul Benacerraf.--Rejoinders, by J.R. Searle.--Symposium: Wittgenstein on criteria, by Newton Garver.--Commments, by Carl Ginet.--Comments by F.A. Siegler.--Comments, by Paul Ziff.--Rejoinders, by Newton Garver.--Symposium: The private-language argument, by H-N. Castañeda.--Comments, by V.C. Chappell.--Comments, by J.F. Thomson.--Rejoinders, by H-N. Castañeda.

This paper considers prevailing environmental policy in the United States with the emphasis on liberty, markets, utilizing information, entrepreneurial discovery, and the economic analysis of political decisions. The general discussion is illustrated by the concern over global warming and policies for addressing this concern. The political incentives to confront environmental problems directly with mandates, restrictions, and subsidies ignore the power of liberty and market incentives to solve problems by fostering an impressive network of information transfer, increasing innovation, and expanding prosperity. (...) Indeed, most environmental policies systematically suppress liberty, censor the communication of information, and retard innovation and prosperity, with the result that they provide less environmental quality at greater cost than is possible. While such flawed policies might be justified in cases where pollution problems pose clear, serious, and immediate threats, we argue this is not true of global warming, and the most effective response to concerns over carbon emissions may be limiting the discretionary power of government to take direct action and rely on the indirect effects of liberty and market incentives to move us beyond the petroleum age more quickly and efficiently than will result from the direct action of government. (shrink)

Based on seventeenth- and eighteenth-century accounts written by and for slavers, this article investigates the provisioning of the French Middle Passage. As the transatlantic trade in African captives developed, foodstuffs for the feeding of both Europeans and Africans figured prominently in a specifically Atlantic system of commodity exchanges. The trade in foodstuffs depended most heavily on African subsistence systems encountered along the coasts of West Africa, but a surprising quantity of French and other European foodstuffs were embarked specifically for the (...) Middle Passage, revealing, I argue, the precariousness of conditions of trade and of European slaving factories. As a key element of Atlantic political economy, the study of food and its transatlantic provisioning networks sheds light not only on the governance and regulation of the networks themselves, but also on the ability of early modern states to establish and maintain metropolitan control, on the growth of local, colonial forms of autonomy and authority, and on the complex systems of ‘national’ and colonial interdependence that lay behind the expansion of every Atlantic colony. I conclude that this study of provisioning demonstrates that however fractured and differentiated, imperial power was an irrefutable aspect of colonial continuity. (shrink)

Perched on the ramparts of Volterra last July, I gaze over i dolci colli toscani, the sweet hills of Tuscany, drenched in summer sun. Warm, content and at peace, I am bemused at how much at home I feel in this strange land. I have felt this way since 1991 when I returned for the first time to la bell' Italia thirty-seven years after having lived in Rome as a young child in a Foreign Service family. In its sensuous beauty (...) and riotous disorder, Rome was stunning. My wife Eileen and I explored old childhood haunts, including the Embassy apartment residences on viale villa Graziole where my family had lived for four years in Rome—two consecutive two-year posts—in the 1950s. Memory cells exploding, I was assailed by vivid images from childhood. Once when I was five or six, my brother David and I accompanied our housemaid Marcella to her simple country home and joined villagers in the fields as they all turned out—men, women, and children—to harvest the bean crop. As dusk set in, fires were lit, simple musical instruments appeared with the wine, and the feasting and dancing began. Bonfires were soon aglow for miles up and down the sweet rolling hills. (shrink)

Perched on the ramparts of Volterra last July, I gaze over i dolci colli toscani, the sweet hills of Tuscany, drenched in summer sun. Warm, content and at peace, I am bemused at how much at home I feel in this strange land. I have felt this way since 1991 when I returned for the first time to la bell' Italia thirty-seven years after having lived in Rome as a young child in a Foreign Service family. In its sensuous beauty (...) and riotous disorder, Rome was stunning. My wife Eileen and I explored old childhood haunts, including the Embassy apartment residences on viale villa Graziole where my family had lived for four years in Rome—two consecutive two-year posts—in the 1950s. Memory cells exploding, I was assailed by vivid images from childhood. Once when I was five or six, my brother David and I accompanied our housemaid Marcella to her simple country home and joined villagers in the fields as they all turned out—men, women, and children—to harvest the bean crop. As dusk set in, fires were lit, simple musical instruments appeared with the wine, and the feasting and dancing began. Bonfires were soon aglow for miles up and down the sweet rolling hills. (shrink)

Business professions are increasingly faced with the question of how to best monitor the ethical behavior of their members. Conflicts could exist between a profession's desire to self-regulate and its accountability to the public at large. This study examines how members of one profession, public accounting, evaluate the relative effectiveness of various self-regulatory and externally imposed mechanisms for promoting a climate of high ethical behavior. Specifically, the roles of independent public accountants, regulatory and rule setting agencies, and undergraduate accounting education (...) are investigated. Of 461 possible respondents, 230 questionnaires (a 49.6% response rate) indicated that the profession's own rule setting body (The American Institute of Certified Public Accountants) and the use of peer review were perceived as the most effective mechanisms, while government regulation was ranked least. Respondents also evaluated the extent to which ethics should be covered in the accounting curriculum. For every course, the CPAs believed a greater emphasis on ethics is appropriate than presently exists. Suggestions for more effectively integrating ethics into accounting courses are made. Finally, respondents were also asked whether in answering the questionnaire they used a definition of ethics as either the Professional Code of Conduct or a moral and philosphical framework for guiding beliefs. Those who viewed ethics as abiding by a professional code had more confidence in the mechanisms addressed in this study to aid the public accounting profession's ability to ensure high ethical standards of conduct. Methodological implications of this distinction for future studies in business ethics are discussed. (shrink)

Southern Appalachia is unique among agroecological regions of the American South because of the diverse environmental conditions caused by its mountain ecology, the geographic and commercial isolation of the region, and the relative cultural autonomy of the people that live there. Those three criteria, combined with a rich agricultural history and the continuance of the homegardening tradition, make southern Appalachia an area of relatively high crop biodiversity in America. This study investigated the history and survival of traditional heirloom vegetable crops (...) in western North Carolina and documented 134 heirloom varieties that were still being grown. I conducted interviews with 26 individuals from 12 counties in western North Carolina. I used a snowball sampling method to identify individuals or communities that maintained heirloom vegetable varieties, and used the “memory banking” of farmers’ knowledge as a strategy to complement the gathering of seed specimens. Most of the varieties were grown and saved by homegardeners; beans were the most numerous. Results indicate that usually only one or two individuals in a community maintained significant numbers of heirloom varieties and that many communities have lost their heirloom vegetable heritage altogether. The decline of the farming population combined with a lack of cultural continuance in family seed-saving traditions threatens the ability of communities to maintain crop biodiversity. Some of the cultivars may represent the last (small) populations of endangered varieties. (shrink)

We show how a simple nonlinear dynamical system (the discrete quadratic iteration on the unit segment) can be the basis for modelling the embryogenesis process. Such an approach, even though being crude, can nevertheless prove to be useful when looking with the two main involved processes:i) on one hand the cell proliferation under successive divisions ii) on the other hand, the differentiation between cell lineages. We illustrate this new approach in the case of Caenorhabditis elegans by looking at the early (...) stages of embryogenesis, up to several hundreds of cells (lima bean larval stage). We show how the many results that have been obtained by several groups can be interpreted in terms of values for the parameters controlling the dynamical system. Furthermore, we can extend the model to the cases of genetic mutations. More precisely the teratogenetic and lethal effects are associated with abnormal variation of the control parameters with time. (shrink)

Models of cultural evolution need to address not only the organizational aspects of human societies, but also the complexity and structure of cultural idea systems that frame their systems of organization. These cultural idea systems determine a framework within which behaviors take place and provide mutually understood meanings for behavior from the perspective of both agent and recipient that are critical for the coherence of human systems of social organization.

The term “deep history” refers to historical accounts framed temporally not by the advent of a written record but by evolutionary events (Smail 2008; Shryock and Smail 2011). The presumption of deep history is that the events of today have a history that traces back beyond written history to events in the evolutionary past. For human kinship, though, even forming a history of kinship, let alone a deep history, remains problematic, given limited, relevant data (Trautman et al. 2011). With regard (...) to a deep history, one conjecture is that human kinship evolved from primate social systems in a gradual, more-or-less continuous manner (see Chapais 2008); another conjecture is that kinship, in accordance with the incest account of Claude Lévi-Strauss (1969) or the fanciful, tetradic account of Nicholas J. Allen (1986), “comes into existence with a leap” (Trautman et al. 2011: 176); and yet another, the account to be developed in this paper, is that kinship, as it is understood and lived by culture bearers today, is the consequence of a profound and qualitative evolutionary transformation going from an ancestral primate-like social system predicated on extensive face-to-face interaction to the relation-based social systems that characterize human societies (Read 2012). (shrink)

This review article discusses the conception of collective rights necessary to ground contemporary entrenchments of minority educational rights, Indigenous rights and collective bargaining rights, as discussed in Miodrag Jovanović’s book, Collective Rights: A Legal Theory. Jovanović argues for a role for value collectivism in elucidating a rationale for the entrenchment of rights held by what he conceives of as pre-legally existing groups with interests not reducible to those of their individual members. This approach can offer an explanation for the entrenchment (...) of minority educational rights and Indigenous rights. The article extols Jovanović’s attempt to grapple with an explanation for rights not explained within standard liberal theory, even in Will Kymlicka’s attempt to justify minority rights within liberalism. The review also critiques the argument offered by Jovanović. First, the review argues that a full-fledged adoption of value collectivism is not necessary to provide a justification for irreducibly collective rights and that the unnecessary adoption of such a theoretical construct may, in practical terms, work counter to the ongoing entrenchment of the rights it seeks to justify, thus becoming what it will categorize as a ‘self-threatening theory’. Second, the review argues that Jovanović’s stark division of rights held by pre-legally existing groups and legally constituted collective entities undermines his account’s ability to explain collective bargaining rights of trade unions that are entrenched in some jurisdictions. (shrink)

Anton Wilhelm Amo (c. 1700 – c. 1750) – born in West Africa, enslaved, and then gifted to the Duke of Braunschweig-Wolfenbüttel – became the first African to earn a Ph.D. in philosophy at a European university. He went on to teach philosophy at the Universities of Halle and Jena. On the 16th of April, 1734, at the University of Wittenberg, he defended his dissertation, De Humanae Mentis Apatheia (On the Impassivity of the Human Mind), in which Amo investigates the (...) logical inconsistencies in René Descartes’ (1596 – 1650) res cogitans (mind) and res extensa (body) distinction and interaction by maintaining that (1) the mind does not sense material things nor does it (2) contain the faculty of sensing. (shrink)

Reason and Value collects 15 new papers by leading contemporary philosophers on themes from the work of Joseph Raz. Raz has made major contributions in a wide range of areas, including jurisprudence, political philosophy, and the theory of practical reason; but all of his work displays a deep engagement with central themes in moral philosophy. The subtlety and power of Raz's reflections on ethical topics make his writings a fertile source for anyone working in this area. Especially significant are his (...) explorations of the connections between practical reason and the theory of value, which constitute a sustained and penetrating treatment of a set of issues at the very center of moral philosophy as it is practiced today. The contributors to the volume acknowledge the importance of Raz's contributions by engaging critically with his positions and offering independent perspectives on the topics that he has addressed. The volume aims both to honour Raz's accomplishments in the area of ethical theorizing, and to contribute to an enhanced appreciation of the significance of his work for the subject. (shrink)

The history of research in American Indian/Alaska Native communities has been marked by unethical practices, resulting in mistrust and reluctance to participate in research. Harms are not l...