This paper presents a new modal logic for ceteris paribus preferences understood in the sense of "all other things being equal". This reading goes back to the seminal work of Von Wright in the early 1960's and has returned in computer science in the 1990' s and in more abstract "dependency logics" today. We show how it differs from ceteris paribus as "all other things being normal", which is used in contexts with preference defeaters. We provide a semantic analysis and (...) several completeness theorems. We show how our system links up with Von Wright's work, and how it applies to game-theoretic solution concepts, to agenda setting in investigation, and to preference change. We finally consider its relation with infinitary modal logics. (shrink)

Many logical systems today describe intelligent interacting agents over time. Frameworks include Interpreted Systems (IS, Fagin et al. [8]), Epistemic-Temporal Logic (ETL, Parikh & Ramanujam [22]), STIT (Belnap et al. [5]), Process Algebra and Game Semantics (Abramsky [1]). This variety is an asset, as different modeling tools can be fine-tuned to specific applications. But it may also be an obstacle, when barriers between paradigms and schools go up. This paper takes a closer look at one particular interface, between two systems (...) that both address the dynamics of knowledge and information flow in multi-agent systems. One is IS/ETL (IS and ETL are, from a technical point of view, the same up to model transformations, cf. [20]), which uses linear or branching time models with added epistemic structure induced by agents’ different capabilities for observing events. These models provide a Grand Stage where histories of some process unfold constrained by a protocol, and a matching epistemic-temporal language describes what happens. The other framework is Dynamic Epistemic Logic (DEL, [10, 4, 34]) that describes interactive processes in terms of epistemic event models which may occur inside modalities of the language. Temporal evolution is then computed from some initial epistemic model through a process of successive ‘product updates’. It has long been unclear how to best compare IS/ETL and DEL. Various aspects have been investigated in [10, 30, 32], but in this paper, we study the interface in a more systematic way. Often, DEL and ETL are presented as alternative ways of adding dynamics to multi-agent epistemic models. In this paper, we rather focus on how merging the two different modeling choices leads to interesting new questions. Our leading interest here will be a view of informational processes as evolving over time. To see what we mean, consider the simplest version of DEL, viz. the logic of public announcements PAL ([23]) which adds a very specific type of communicative 1 action to epistemic models: a public announcement.. (shrink)

For many years the prevailing paradigm for medical decision making for children has been the best interest standard. Recently, some authors have proposed that Mill’s “harm principle” should be used to mediate or to replace the best interest standard. This article critically examines the harm principle movement and identifies serious defects within the project of using Mill’s harm principle for medical decision making for children. While the harm principle proponents successfully highlight some difficulties in present-day use of the best interest (...) standard, the use of the harm principle suffers substantial normative and conceptual problems. A medical decision-making framework for children is suggested, grounded in the four principles. It draws on the best interest standard, incorporates concepts of harm, and provides two questions that can act as guide and limit in medical decision making for children. (shrink)

One of the principles on how to act under moral uncertainty, My Favourite Theory, says roughly that a morally conscientious agent chooses an option that is permitted by the most credible moral theory. In defence of this principle, we argue that it prescribes consistent choices over time, without relying on intertheoretic comparisons of value, while its main rivals are either plagued by moral analogues of money pumps or in need of a method for making non-arbitrary intertheoretic comparisons. We rebut the (...) arguments that have been levelled against My Favourite Theory and offer some arguments against intertheoretic comparisons of value. (shrink)

_In Perception, Empathy, and Judgment_ Arne Johan Vetlesen focuses on the indispensable role of emotion, especially the faculty of empathy, in morality. He contends that moral conduct is severely threatened once empathy is prevented from taking part in an interplay with cognitive faculties in acts of moral perception and judgment. Drawing on developmental psychology, especially British "object relations" theory, to illuminate the nature and functioning of empathy, Vetlesen shows how moral performance is constituted by a sequence involving perception, judgment, (...) and action, with an interplay between the agent's emotional and cognitive faculties occurring at each stage. In the powerful tradition from Kant to present-day theorists such as Kohlberg, Rawls, and Habermas, reason is privileged over feeling and judgment over perception, in such a way that basic philosophical questions remain unasked. Vetlesen focuses our attention on these questions and challenges the long-standing assertion that emotions are damaging to moral response. In the final chapter he relates his argument to recent feminist critiques that have also castigated moral theorists in the Kantian tradition for their refusal to recognize a role for emotion in morality. While the book's argument is philosophical, its method and scope are interdisciplinary. In addition to critiques of such philosophers as Arendt, MacIntyre, and Habermas, it contains discussions of specific historical, ideological, and sociological factors that may cause "numbing"—selective or broad-ranging, pathological insensitivity—in humans. The Nazis' mass killing of Jews is studied to illuminate these and other relevant empirical aspects of large-scale immoral action. (shrink)

This book develops a view of logic as a theory of information-driven agency and intelligent interaction between many agents - with conversation, argumentation and games as guiding examples. It provides one uniform account of dynamic logics for acts of inference, observation, questions and communication, that can handle both update of knowledge and revision of beliefs. It then extends the dynamic style of analysis to include changing preferences and goals, temporal processes, group action and strategic interaction in games. Throughout, the book (...) develops a mathematical theory unifying all these systems, and positioning them at the interface of logic, philosophy, computer science and game theory. A series of further chapters explores repercussions of the 'dynamic stance' for these areas, as well as cognitive science. (shrink)

It has often been argued that, notwithstanding his commitment to the authoritarian state, Thomas Hobbes is a champion of the "minimal" version of liberty of conscience: namely, the freedom of citizens to think whatever they like as long as they obey the law. Such an interpretation renders Hobbes's philosophy more palatable to contemporary society. Yet the claim is incorrect. Alongside his notion of "private" conscience, namely, Hobbes develops a conception of conscience as a public phenomenon. In the following, it is (...) argued that this inconsistency serves the purpose of deception: it holds out the possibility of dissent while making it impossible to utilise. Arguably, moreover, this is the proper hermeneutical approach to take to Hobbes's inconsistencies in general. Indeed, said inconsistencies ought to alert contemporary normative theorists to the instability of the "minimal" version of liberty of conscience attributed to Hobbes: Hobbes himself, namely, shows that it is insufficient. (shrink)

Due to several recent scandals, Business Ethics is now firmly embraced. Whereas in the 1980s and early 1990s there were serious doubts expressed about combining ethics and business, the link now seems to have become self-evident. Fundamental questions about the tensions between business and ethics however continue to receive little attention. In this paper, based upon a debate concerning the Fair Trade company, the strains between business and ethics are analyzed. The article shows how several great thinkers have already considered (...) this tension. Three ways to conceptualize the tension between business and ethics have been distinguished, and these are outlined in the paper. In one approach, ethical entrepreneurship, value tensions are perceived as a source for entrepreneurship. However, this approach presupposes pluralistic ethics. Thinking only in terms of black and white is seen as blocking the ability to adequately handle the tension between business and ethics. Opting for ‘‘ethical entrepreneurship’’, as by Fair Trade, has fundamental and important consequences for the company’s communication policy. (shrink)

Beneficence is a foundational ethical principle in medicine. To provide benefit to a patient is to promote and protect the patient’s wellbeing, to promote the patient’s interests. But there are different conceptions of wellbeing, emphasizing different values. These conceptions of wellbeing are contrary to one another and give rise to dissimilar ideas of what it means to benefit a patient. This makes the concept of beneficence ambiguous: is a benefit related to the patient’s goals and wishes, or is it a (...) matter of objective criteria that constitute wellbeing? This paper suggests a unified conception of wellbeing for use in medicine to determine what counts as a benefit. Two components of wellbeing are identified: objective functioning/health and the patient’s view of her own good. The paper explores how to apply, balance, and weigh these components in clinical situations to determine what counts as a benefit to a patient. (shrink)

Labeling of food consumption is related to food safety, food quality, environmental, safety, and social concerns. Future politics of food will be based on a redefinition of commodity food consumption as an expression of citizenship. “Citizen-consumers” realize that they could use their buying power in order to develop a new terrain of social agency and political action. It takes for granted kinds of moral selfhood in which human responsibility is bound into human agency based on knowledge and recognition. This requires (...) new kinds of food labeling practices. Existing research on consumer’s preferences often fails to recognize the full complexity of the motivations and intentions through which the identity of the moral self is built up in relation to food consumption practices. For citizens, not only food production practices matter but also the impact of what we eat on who we are and the ecological foot print of our food stuff. Two major drivers for this are the idea that we ourselves have to take care of our own bodies (“We are what we eat”) and that we are responsible for Planet Earth. Since both obesity and climate change have become major public concerns, also governments develop an increasing interest in defining how citizens ought to behave as consumers and how retailers and producers should facilitate such responsible behavior. Since they are supposed to defend the “bonum commune,” e.g., the public health of their citizens and a sound common future for all, a new consensus on “appropriate” consumption choices has to be found, balancing beneficence and autonomy. (shrink)

We show how belief revision can be treated systematically in the format of dynamicepistemic logic, when operators of conditional belief are added. The core engine consists of definable update rules for changing plausibility relations between worlds, which have been proposed independently in the dynamic-epistemic literature on preference change. Our analysis yields two new types of modal result. First, we obtain complete logics for concrete mechanisms of belief revision, based on compositional reduction axioms. Next, we show how various abstract postulates for (...) belief revision can be analyzed by standard modal frame correspondences for model-changing operations. (shrink)

In the 1960’s, Lars Bergström and Hector-Neri Castañeda noticed a problem with alternative acts and consequentialism. The source of the problem is that some performable acts are versions of other performable acts and the versions need not have the same consequences as the originals. Therefore, if all performable acts are among the agent’s alternatives, act consequentialism yields deontic paradoxes. A standard response is to restrict the application of act consequentialism to certain relevant alternative sets. Many proposals are based on some (...) variation of maximalism, that is, the view that act consequentialism should only be applied to maximally specific acts. In this paper, I argue that maximalism cannot yield the right prescriptions in some cases where one can either (i) form at once the intention to do an immediate act and form at a later time the intention to do a succeeding act or (ii) form at once the intention to do both acts and where the consequences of (i) and (ii) differ in value. Maximalism also violates normative invariance, that is, the condition that if an act is performable in a situation, then the normative status of the act does not depend on what acts are performed in the situation. Instead of maximalism, I propose that the relevant alternatives should be the exhaustive combinations of acts the agent can jointly perform without performing any other act in the situation. In this way, one avoids the problem of act versions without violating normative invariance. Another advantage is that one can adequately differentiate between possibilities like (i) and (ii). (shrink)

Scholars have long been captivated by the parallels between birdsong and human speech and language. In this book, leading scholars draw on the latest research to explore what birdsong can tell us about the biology of human speech and language and the consequences for evolutionary biology. They examine the cognitive and neural similarities between birdsong learning and speech and language acquisition, considering vocal imitation, auditory learning, an early vocalization phase, the structural properties of birdsong and human language, and the striking (...) similarities between the neural organization of learning and vocal production in birdsong and human speech. After outlining the basic issues involved in the study of both language and evolution, the contributors compare birdsong and language in terms of acquisition, recursion, and core structural properties, and then examine the neurobiology of song and speech, genomic factors, and the emergence and evolution of language. Contributors: Hermann Ackermann, Gabriël J.L. Beckers, Robert C. Berwick, Johan J. Bolhuis, Noam Chomsky, Frank Eisner, Martin Everaert, Michale S. Fee, Olga Fehér, Simon E. Fisher, W. Tecumseh Fitch, Jonathan B. Fritz, Sharon M.H. Gobes, Riny Huijbregts, Eric Jarvis, Robert Lachlan, Ann Law, Michael A. Long, Gary F. Marcus, Carolyn McGettigan, Daniel Mietchen, Richard Mooney, Sanne Moorman, Kazuo Okanoya, Christophe Pallier, Irene M. Pepperberg, Jonathan F. Prather, Franck Ramus, Eric Reuland, Constance Scharff, Sophie K. Scott, Neil Smith, Ofer Tchernichovski, Carel ten Cate, Christopher K. Thompson, Frank Wijnen, Moira Yip, Wolfram Ziegler, Willem Zuidema. (shrink)

This paper analyses the use of strategies and instruments for organising ethics by small and large business in the Netherlands. We find that large firms mostly prefer an integrity strategy to foster ethical behaviour in the organisation, whereas small enterprises prefer a dialogue strategy. Both large and small firms make least use of a compliance strategy that focuses on controlling and sanctioning the ethical behaviour of workers. The size of the business is found to have a positive impact on the (...) use of several instruments, like code of conduct, ISO certification, social reporting, social handbook and confidential person. Also being a subsidiary of a larger firm has a significant positive influence on the use of instruments. The most popular instrument used by small firms is to let one member of the board be answerable for ethical questions, which fits the informal culture of most small firms. With respect to sectorial differences, we find that firms in the metal manufacturing and construction sectors are more actively using formal instruments than firms in the financial service sector and retail sector. The distinction between family and non-family firms hardly affects the use of instruments. (shrink)

This paper discusses the relation between medical ethics and general moral theory, the argument being that medical ethics is best seen as independent from general moral theory. According to this independence thesis, here explicated in terms of what is called a disunitarian stance, the very idea of applied ethics, which is often seen as underlying medical ethics, is misguided. We should instead think of medical ethics as a domain-specific ethical inquiry among other domain-specific ethical inquiries. On this alternative kind of (...) picture, such ethical inquiries should start with looking at the particularities of the domain under consideration and then proceed from there. Some possible consequences of this idea for medical ethics are then identified and discussed. (shrink)

In _Modal Logic for Open Minds,_ Johan van Benthem provides an up-to-date introduction to the field of modal logic, outlining its major ideas and exploring the numerous ways in which various academic fields have adopted it. Van Benthem begins with the basic theories of modal logic, semantics, bisimulation, and axiomatics, and also covers more advanced topics, such as expressive power and computational complexity. The book then moves to a wide range of applications, including new developments in information flow, intelligent (...) agency, and games. Taken together, the chapters show modal logic at the crossroads of philosophy, mathematics, linguistics, computer science, and economics. Most of the chapters are followed by exercises, making this volume ideal for undergraduate and graduate students in philosophy, computer science, symbolic systems, cognitive science, and linguistics. (shrink)

The modal properties of the principle of the causal closure of the physical have traditionally been said to prevent anything outside the physical world from affecting the physical universe and vice versa. This idea has been shown to be relative to the definition of the principle. A traditional definition prevents the one universe from affecting any other universe, but with a modified definition, e.g., the causal closure of the physical can be consistent with the possibility of one universe affecting the (...) other universe. Gamper proved this modal property by implementing interfaces between universes. Interfaces are thus possible, but are they realistic? To answer this question, I propose a two-step process where the second step is scientific research. The first step, however, is to fill the gap between the principles or basic assumptions and science with a consistent theoretical framework that accommodates the modal properties of an ontology that matches the basic assumptions. (shrink)

Derek Parfit’s argument against the platitude that identity is what matters in survival does not work given his intended reading of the platitude, namely, that what matters in survival to some future time is being identical with someone who is alive at that time. I develop Parfit’s argument so that it works against the platitude on this intended reading.

A comprehensive examination of the interfaces of logic, computer science, and game theory, drawing on twenty years of research on logic and games.

John Locke’s account of personal identity is usually thought to have been proved false by Thomas Reid’s simple ‘Gallant Officer’ argument. Locke is traditionally interpreted as holding that your having memories of a past person’s thoughts or actions is necessary and sufficient for your being identical to that person. This paper argues that the traditional memory interpretation of Locke’s account is mistaken and defends a memory continuity view according to which a sequence of overlapping memories is necessary and sufficient for (...) personal identity. On this view Locke is not vulnerable to the Gallant Officer argument. (shrink)

In this article, I argue that the small-improvement argument fails since some of the comparisons involved in the argument might be indeterminate. I defend this view from two objections by Ruth Chang, namely the argument from phenomenology and the argument from perplexity. There are some other objections to the small-improvement argument that also hinge on claims about indeterminacy. John Broome argues that alleged cases of value incomparability are merely examples of indeterminacy in the betterness relation. The main premise of his (...) argument is the much-discussed collapsing principle. I offer a new counterexample to this principle and argue that Broome's defence of the principle is not cogent. On the other hand, Nicolas Espinoza argues that the small-improvement argument fails as a result of the mere possibility of evaluative indeterminacy. I argue that his objection is unsuccessful. (shrink)

Standard definitions of causal closure focus on where the causes in question are. In this paper, the focus is changed to where they are not. Causal closure is linked to the principle that no cause of another universe causes an event in a particular universe. This view permits the one universe to be affected by the other via an interface. An interface between universes can be seen as a domain that violates the suggested account of causal closure, suggesting a view (...) in which universes are causally closed whereas interfaces are not. On this basis, universes are not affected by other universes directly but rather indirectly. (shrink)

Current dynamic epistemic logics for analyzing effects of informational events often become cumbersome and opaque when common knowledge is added for groups of agents. Still, postconditions involving common knowledge are essential to successful multi-agent communication. We propose new systems that extend the epistemic base language with a new notion of ‘relativized common knowledge’, in such a way that the resulting full dynamic logic of information flow allows for a compositional analysis of all epistemic postconditions via perspicuous ‘reduction axioms’. We also (...) show how such systems can deal with factual alteration, rather than just information change, making them cover a much wider range of realistic events. After a warm-up stage of analyzing logics for public announcements, our main technical results are expressivity and completeness theorems for a much richer logic that we call LCC. This is a dynamic epistemic logic whose static base is propositional dynamic logic (PDL), interpreted epistemically. This system is capable of expressing all model-shifting operations with finite action models, while providing a compositional analysis for a wide range of informational events. This makes LCC a serious candidate for a standard in dynamic epistemic logic, as we illustrate by analyzing some complex communication scenarios, including sending successive emails with both ‘cc’ and ‘bcc’ lines, and other private announcements to subgroups. Our proofs involve standard modal techniques, combined with a new application of Kleene’s theorem on finite automata, as well as new Ehrenfeucht games of model comparison. (shrink)

Spinoza and Education offers a comprehensive investigation into the educational implications of Spinoza’s moral theory. Taking Spinoza’s naturalism as its point of departure, it constructs a considered account of education, taking special care to investigate the educational implications of Spinoza’s psychological egoism. What emerges is a counterintuitive form of education grounded in the egoistic striving of the teacher to persevere and to flourish in existence while still catering to the ethical demands of the students and the greater community. -/- In (...) providing an educational reading of Spinoza’s moral theory, this book sets up a critical dialogue between educational theory and recent studies which highlight the centrality of ethics in Spinoza’s overall philosophy. By placing his work in a contemporary educational context, chapters explore a counterintuitive conception of education as an ethical project, aimed at overcoming the desire to seek short-term satisfaction and troubling the influential concept of the student as consumer. This book also considers how education, from a Spinozistic point of view, may be approached in terms of a kind of cognitive therapy serving to further a more scientifically adequate understanding of the world and aimed at combating prejudices and superstition. -/- Spinoza and Education demonstrates that Spinoza’s moral theory can further an educational ideal, where notions of freedom and self-preservation provide the conceptual core of a coherent philosophy of education. As such, it will appeal to researchers, academics and postgraduate students in the fields of philosophy of education, theory of education, critical thinking, philosophy, ethics, and Spinoza studies. (shrink)

Starting from MacIntyre’s virtue ethics, we investigate several codes of conduct of banks to identify the type of virtues that are needed to realize their mission. Based on this analysis, we define three core virtues: honesty, due care, and accuracy. We compare and contrast these codes of conduct with the actual behavior of banks that led to the credit crisis and find that in some cases banks did not behave according to the moral standards they set themselves. However, although banks (...) and the professionals working in them can be blamed for what they did, one should also acknowledge that the institutional context of the free market economy in which they operated made it difficult to live up to the core values lying at the basis of the codes of conduct. Given the neo-liberal free market system, innovative and risky strategies to enhance profits are considered desirable for the sake of shareholder’s interests. A return to the core virtues in the financial sector will therefore only succeed if a renewed sense of responsibility in the sector is supported by institutional changes that allow banks to put their mission into practice. (shrink)

Statements not only update our current knowledge, but also have other dynamic effects. In particular, suggestions or commands ?upgrade' our preferences by changing the current order among worlds. We present a complete logic of knowledge update plus preference upgrade that works with dynamic-epistemic-style reduction axioms. This system can model changing obligations, conflicting commands, or ?regret'. We then show how to derive reduction axioms from arbitrary definable relation changes. This style of analysis also has a product update version with preferences between (...) actions, as well as worlds. Some illustrations are presented involving defaults and obligations. We conclude that our dynamic framework is viable, while admitting a further extension to more numerical ?utility update'. (shrink)

Starting from MacIntyre’s virtue ethics, we investigate several codes of conduct of banks to identify the type of virtues that are needed to realize their mission. Based on this analysis, we define three core virtues: honesty, due care, and accuracy. We compare and contrast these codes of conduct with the actual behavior of banks that led to the credit crisis and find that in some cases banks did not behave according to the moral standards they set themselves. However, although banks (...) and the professionals working in them can be blamed for what they did, one should also acknowledge that the institutional context of the free market economy in which they operated made it difficult to live up to the core values lying at the basis of the codes of conduct. Given the neo-liberal free market system, innovative and risky strategies to enhance profits are considered desirable for the sake of shareholder’s interests. A return to the core virtues in the financial sector will therefore only succeed if a renewed sense of responsibility in the sector is supported by institutional changes that allow banks to put their mission into practice. (shrink)

This work clarifies the role of the best interest standard as ethical principle in the medical care of children. It relates the BIS to the ethical framework of medical practice. The BIS is shown to be a general principle in medical ethics, providing grounding to prima facie obligations. The foundational BIS of Kopelman and Buchanan and Brock are reviewed and shown to be in agreement with the BIS here defended. Critics describe the BIS as being too demanding, narrow, opaque, not (...) taking the family into account and not suitable as limiting principle. This work responds to these criticisms, showing that they do not stand up to scrutiny. They either do not apply to the BIS, only apply to misuses of the BIS or criticise a BIS that is not seriously defended in the literature. (shrink)

In this paper, we examine the relationship between various Christian denominations and attitude and behavior regarding consumption of socially responsible products. Literature on the relationship between religiosity and pro-social behavior has shown that religiosity strengthens positive attitudes towards pro-social behavior, but does not affect social behavior itself. This seems to contradict the theory of planned behavior that predicts that attitude fosters behavior. One would therefore expect that if religiosity encourages attitude towards SR products, it would also increase the demand for (...) them. We test this hypothesis for four affiliations on a sample of 997 Dutch consumers, using structural equation modeling. We find that Christian religiosity, indeed, increases positive attitude towards SR products, except for the Orthodox Protestant affiliation. In accordance with the theory of planned behavior, attitude is found to increase the demand for SR products. We find no evidence of hypocrisy for any of the Christian denominations. (shrink)

A variety of logical frameworks have been developed to study rational agents interacting over time. This paper takes a closer look at one particular interface, between two systems that both address the dynamics of knowledge and information flow. The first is Epistemic Temporal Logic (ETL) which uses linear or branching time models with added epistemic structure induced by agents’ different capabilities for observing events. The second framework is Dynamic Epistemic Logic (DEL) that describes interactive processes in terms of epistemic event (...) models which may occur inside modalities of the language. This paper systematically and rigorously relates the DEL framework with the ETL framework. The precise relationship between DEL and ETL is explored via a new representation theorem characterizing the largest class of ETL models corresponding to DEL protocols in terms of notions of Perfect Recall , No Miracles , and Bisimulation Invariance . We then focus on new issues of completeness . One contribution is an axiomatization for the dynamic logic of public announcements constrained by protocols, which has been an open problem for some years, as it does not fit the usual ‘reduction axiom’ format of DEL. Finally, we provide a number of examples that show how DEL suggests an interesting fine-structure inside ETL. (shrink)

Spinoza’s claim that self-preservation is the foundation of virtue makes for the point of departure of this philosophical investigation into what a Spinozistic model of moral education might look like. It is argued that Spinoza’s metaphysics places constraints on moral education insofar as an educational account would be affected by Spinoza’s denial of the objectivity of moral knowledge, his denial of the existence of free will, and of moral responsibility. This article discusses these challenges in some detail, seeking to construe (...) a credible account of moral education based on the insight that self-preservation is not at odds with benevolence, but that the self-preservation of the teacher is instead conditioned by the intellectual deliberation of the students. However, it is also concluded that while benevolence retains an important place in Spinoza’s ethics, his causal determinism poses a severe threat to a convincing account of moral education insofar as moral education is commonly understood to involve an effort to influence the actions of students relative to some desirable goal. (shrink)

In this paper, I argue against defining either of ‘good’ and ‘better’ in terms of the other. According to definitions of ‘good’ in terms of ‘better’, something is good if and only if it is better than some indifference point. Against this approach, I argue that the indifference point cannot be defined in terms of ‘better’ without ruling out some reasonable axiologies. Against defining ‘better’ in terms of ‘good’, I argue that this approach either cannot allow for the incorruptibility of (...) intrinsic goodness or it breaks down in cases where both of the relata of ‘better’ are bad. (shrink)

Joshua Gert and Wlodek Rabinowicz have developed frameworks for value relations that are rich enough to allow for non-standard value relations such as parity. Yet their frameworks do not allow for any non-standard preference relations. In this paper, I shall defend a symmetry between values and preferences, namely, that for every value relation, there is a corresponding preference relation, and vice versa. I claim that if the arguments that there are non-standard value relations are cogent, these arguments, mutatis mutandis, also (...) show that there are non-standard preference relations. Hence frameworks of Gert and Rabinowicz's type are either inadequate since there are cogent arguments for both non-standard value and preference relations and these frameworks deny this, or they lack support since the arguments for non-standard value relations are unconvincing. Instead, I propose a simpler framework that allows for both non-standard value and preference relations. (shrink)

The small-improvement argument is usually considered the most powerful argument against comparability, viz the view that for any two alternatives an agent is rationally required either to prefer one of the alternatives to the other or to be indifferent between them. We argue that while there might be reasons to believe each of the premises in the small-improvement argument, there is a conflict between these reasons. As a result, the reasons do not provide support for believing the conjunction of the (...) premises. Without support for the conjunction of the premises, the small-improvement argument for incomparability fails. (shrink)

We discuss games of both perfect and imperfect information at two levels of structural detail: players’ local actions, and their global powers for determining outcomes of the game. We propose matching logical languages for both. In particular, at the ‘action level’, imperfect information games naturally model a combined ‘dynamic-epistemic language’ – and we find correspondences between special axioms and particular modes of playing games with their information dynamics. At the ‘outcome level’, we present suitable notions of game equivalence, plus some (...) simple representation results. (shrink)

Critical-Range Utilitarianism is a variant of Total Utilitarianism which can avoid both the Repugnant Conclusion and the Sadistic Conclusion in population ethics. Yet Standard Critical-Range Utilitarianism entails the Weak Sadistic Conclusion, that is, it entails that each population consisting of lives at a bad well-being level is not worse than some population consisting of lives at a good well-being level. In this paper, I defend a version of Critical-Range Utilitarianism which does not entail the Weak Sadistic Conclusion. This is made (...) possible by a fourth category of absolute value in addition to goodness, badness, and neutrality. (shrink)

Bayesian models are often criticized for postulating computations that are computationally intractable (e.g., NP-hard) and therefore implausibly performed by our resource-bounded minds/brains. Our letter is motivated by the observation that Bayesian modelers have been claiming that they can counter this charge of “intractability” by proposing that Bayesian computations can be tractably approximated. We would like to make the cognitive science community aware of the problematic nature of such claims. We cite mathematical proofs from the computer science literature that show intractable (...) Bayesian computations, such as postulated in existing Bayesian models, cannot be tractably approximated. This does not mean that human brains do not (or cannot) implement the type of algorithms that Bayesian modelers are advancing, but it does mean that proposing that they do by itself does nothing to parry the charge of intractability, because the postulated algorithms are as intractable (i.e., require exponential time) as the computations they try to approximate. Besides our negative message for the community, our letter also makes a positive contribution by referring to a methodology that Bayesian modelers can use to try and parry the charge of intractability in a mathematically sound way. (shrink)

Logic is not just about single-agent notions like reasoning, or zero-agent notions like truth, but also about communication between two or more people. What we tell and ask each other can be just as 'logical' as what we infer in Olympic solitude. We show how such interactive phenomena can be studied systematically by merging epistemic and dynamic logic.

Corporate social responsibility (CSR) is becoming increasingly important in China. This paper investigates the implementation of instruments for dimensions of CSR that are relevant for the Chinese context and the challenges that Chinese companies face. Based on a survey among 109 Chinese companies, we find that formal instruments to implement CSR are rather common. Companies spend most effort in improving the economic aspects of CSR, such as competitiveness, product innovation and process innovation. Only a small minority of the companies set (...) concrete targets and report the realization of these targets for social and environmental goals. This indicates that the attention to social and environmental aspects of CSR is still rather loose. The most important challenges for improving CSR are strong competitive pressure, insufficient support from the government and/or nongovernmental organizations and high costs of CSR implementation. Multiple regression analysis shows that the use of instruments is positively related to company size and foreign ownership and negatively related to lack of resources and support for CSR by investors and consumers. (shrink)

Johan Heyns was the moderator of the General Synod of the Dutch Reformed Church from 1986 to 1990. This church was known as a moral and theological supporter of apartheid until the 1980s. In 1980 Heyns was, for the first time, involved in public critique against the pro-apartheid stance of his church. He took an influential part in writing a new document that criticised apartheid and was accepted by the General Synod of 1986. Heyns was elected as moderator or (...) chairman of this synod. The years from 1986 to 1990 became the busiest of his life. He became the leader in his church's defence of the new document Church and Society in and beyond South Africa. In order to get back into the World Alliance of Reformed Churches and to stay on in the Reformed Ecumenical Synod, the Dutch Reformed Church decided to depart from its apartheid ways. Heyns' message on apartheid was shaped by his Reformed approach to life, in which he chose reform as the method for change. (shrink)

The money-pump argument is the standard argument for the acyclicity of rational preferences. The argument purports to show that agents with cyclic preferences are in some possible situations forced to act against their preference. In the usual, diachronic version of the money-pump argument, such agents accept a series of trades that leaves them worse off than before. Two stock objections are (i) that one may get the drift and refuse the trades and (ii) that one may adopt a plan to (...) only accept some of the trades. This article argues that these objections are irrelevant. If the diachronic money-pump argument is cogent, so is a more direct synchronic argument. The upshot is that the standard objections to the diachronic money-pump argument do not affect this simpler synchronic argument. Hence the standard objections to the money-pump argument for acyclicity are irrelevant. (shrink)

In an alleged counter-example to the completeness of rational preferences, a career as a clarinettist is compared with a career in law. It seems reasonable to neither want to judge that the law career is at least as preferred as the clarinet career nor want to judge that the clarinet career is at least as preferred as the law career. The two standard interpretations of examples of this kind are, first, that the examples show that preferences are rationally permitted to (...) be incomplete and, second, that the examples show that preferences are rationally permitted to be indeterminate. In this paper, I shall argue that the difference between these interpretations is crucial for the money-pump argument for transitivity, which is the standard argument that rational preferences are transitive. I shall argue that the money-pump argument for transitivity fails if preferences are rationally permitted to be incomplete but that it works if preferences are rationally permitted to be indeterminate and rationally required to be complete. (shrink)

This paper adds evidence structure to standard models of belief, in the form of families of sets of worlds. We show how these more fine-grained models support natural actions of “evidence management”, ranging from update with external new information to internal rearrangement. We show how this perspective leads to new richer languages for existing neighborhood semantics for modal logic. Our main results are relative completeness theorems for the resulting dynamic logic of evidence.