Decision framing in judgment aggregation

Judgment aggregation problems are language dependent in that they may be framed in different yet equivalent ways. We formalize this dependence via the notion of translation invariance, adopted from the philosophy of science, and we argue for the normative desirability of translation invariance. We characterize the class of translation invariant aggregation functions in the canonical judgment aggregation model, which requires collective judgments to be complete. Since there are reasonable translation invariant aggregation functions, our result can be viewed as a possibility theorem. At the same time, we show that translation invariance does have certain normatively undesirable consequences (e.g. failure of anonymity). We present a way of circumventing them by moving to a more general model of judgment aggregation, one that allows for incomplete collective judgments.     

The Logic of Group Decisions: Judgment Aggregation

Judgment aggregation studies how individual opinions on a given set of propositions can be aggregated to form a consistent group judgment on the same propositions. Despite the simplicity of the problem, seemingly natural aggregation procedures fail to return consistent collective outcomes, leading to what is now known as the doctrinal paradox. The first occurrences of the paradox were discovered in the legal realm. However, the interest of judgment aggregation is much broader and extends to political philosophy, epistemology, social choice theory, and computer science. The aim of this paper is to provide a concise survey of the discipline and to outline some of the most pressing questions and future lines of research.     

Belief merging and the discursive dilemma: an argument-based account to paradoxes of judgment aggregation

The aggregation of individual judgments on logically interconnected propositions into a collective decision on the same propositions is called judgment aggregation. Literature in social choice and political theory has claimed that judgment aggregation raises serious concerns. For example, consider a set of premises and a conclusion where the latter is logically equivalent to the former. When majority voting is applied to some propositions (the premises) it may give a different outcome than majority voting applied to another set of propositions (the conclusion). This problem is known as the discursive dilemma (or paradox). The discursive dilemma is a serious problem since it is not clear whether a collective outcome exists in these cases, and if it does, what it is like. Moreover, the two suggested escape-routes from the paradox—the so-called premise-based procedure and the conclusion-based procedure—are not, as I will show, satisfactory methods for group decision-making. In this paper I introduce a new aggregation procedure inspired by an operator defined in artificial intelligence in order to merge belief bases. The result is that we do not need to worry about paradoxical outcomes, since these arise only when inconsistent collective judgments are not ruled out from the set of possible solutions.     

Aggregating Sets of Judgments: Two Impossibility Results Compared1

The ``doctrinal paradox'' or ``discursive dilemma'' shows that propositionwise majority voting over the judgments held by multiple individuals on some interconnected propositions can lead to inconsistent collective judgments on these propositions. List and Pettit (2002) have proved that this paradox illustrates a more general impossibility theorem showing that there exists no aggregation procedure that generally produces consistent collective judgments and satisfies certain minimal conditions. Although the paradox and the theorem concern the aggregation of judgments rather than preferences, they invite comparison with two established results on the aggregation of preferences: the Condorcet paradox and Arrow's impossibility theorem. We may ask whether the new impossibility theorem is a special case of Arrow's theorem, or whether there are interesting disanalogies between the two results. In this paper, we compare the two theorems, and show that they are not straightforward corollaries of each other. We further suggest that, while the framework of preference aggregation can be mapped into the framework of judgment aggregation, there exists no obvious reverse mapping. Finally, we address one particular minimal condition that is used in both theorems – an independence condition – and suggest that this condition points towards a unifying property underlying both impossibility results.     

Valuable and pernicious collective intellectual self-trust1

Recent years have seen a shift in epistemological studies of intellectual self-trust or epistemic self-trust: intellectual self-trust is not merely epistemologists’ tool for silencing epistemic skepticism or doubt, it is recognized as a disposition of individuals and collectives interesting in its own rights. In this exploratory article I focus on a particular type of intellectual self-trust—collective intellectual self-trust—and I examine which features make for valuable or pernicious collective intellectual self-trust. From accounts of the value of individual intellectual self-trust I take three frameworks for evaluating collective intellectual self-trust: an epistemically consequentialist, a virtue-theoretic and a prudential/pragmatic framework (§2). Then I introduce collective intellectual self-trust (§3). Against this background I explain what is distinctive of valuable collective intellectual self-trust (§4) and pernicious collective intellectual self-trust (§5) within the three frameworks. I close by discussing the relation between the three frameworks and argue that evaluating intellectual self-trust requires a multi-perspectival approach constituted by the three frameworks.     

Talking to God Among a Cloud of Witnesses: Collective Prayer as a Meaningful Performance

There has been much work on the effects that individual prayer has on a variety of social‐psychological indicators, yet there remains a lack of research on collective prayer. While it is tempting to assume that collective prayer may be analyzed as the aggregate of individual prayers, the research presented in this article suggests that worshipers pray differently when in community than when by themselves. To understand the role of collective prayer in the practices of faith communities, I draw on work on group culture and ritual to create a framework for analyzing collective prayer. I assert that collective prayer represents a meaningful social performance that locates those conducting it within wider fields of meaning. I conclude with suggestions for future work, including examining how collective prayer acts as an element of conflict as well as unity.     

Individual Complicity in Collective Wrongdoing

Some instances of right and wrongdoing appear to be of a distinctly collective kind. When, for example, one group commits genocide against another, the genocide is collective in the sense that the wrongness of genocide seems morally distinct from the aggregation of individual murders that make up the genocide. The problem, which I refer to as the problem of collective wrongs, is that it is unclear how to assign blame for distinctly collective wrongdoing to individual contributors when none of those individual contributors is guilty of the wrongdoing in question. I offer Christopher Kutz’s Complicity Principle as an attractive starting point for solving the problem, and then argue that the principle ought to be expanded to include a broader and more appropriate range of cases. The view I ultimately defend is that individuals are blameworthy for collective harms insofar as they knowingly participate in those harms, and that said individuals remain blameworthy regardless of whether they succeed in making a causal contribution to those harms.     

What Sort of Collective Afterlife Matters and How

In Death and the Afterlife, Samuel Scheffler argues that the assumption of a “collective afterlife” (i.e., the assumption that the human race and humanity lives on after our own individual deaths) plays an essential role in us valuing much of what we do. If a collective afterlife did not exist, our value structures would be radically different according to Scheffler. We would cease to value much of what we do. In Part I of the paper, I argue that there is something to Scheffler’s afterlife conjecture, but that Scheffler has misplaced the mattering of a collective afterlife. Its significance lies not in the realm of axiology but more importantly in coming to terms with the fact of death and in viewing our lives as having meaning. In Part II of the paper, I outline three views on the sort of collective afterlife that matters and argue in favor of the view that it must involve creatures that recognize our existence, reasons, values, and contributions (“The Recognition Thesis”) and the view that it must involve creatures that value similar things to us (“The Valuers Like Us Thesis”)—but argue against the view that it necessarily be a human collective afterlife (“The Human Form Thesis”).     

Responsibilist virtues and the “charmed inner circle” of traditional epistemology

In Judgment and Agency, Ernest Sosa takes “reliabilist” virtue epistemology deep into “responsibilist” territory, arguing that “a true epistemology” will assign “responsibilist-cum-reliabilist intellectual virtue the main role in addressing concerns at the center of the tradition.” However, Sosa stops short of granting this status to familiar responsibilist virtues like open-mindedness, intellectual courage, and intellectual humility. He cites three reasons for doing so: responsibilist virtues involve excessive motivational demands; they are quasi-ethical; and they are best understood, not as constituting knowledge, but rather as putting one “in a position” to know. I elaborate on and respond to each of these concerns. I argue that none of them provides Sosa with a good reason for excluding responsibilist virtues from occupying a central role in his reliabilist virtue epistemology. I conclude that Sosa owes virtue responsibilism an even wider embrace.     

Consequentialism and the Standard Story of Action

I challenge the common picture of the “Standard Story” of Action as a neutral account of action within which debates in normative ethics can take place. I unpack three commitments that are implicit in the Standard Story, and demonstrate that these commitments together entail a teleological conception of reasons, upon which all reasons to act are reasons to bring about states of affairs. Such a conception of reasons, in turn, supports a consequentialist framework for the evaluation of action, upon which the normative status of actions is properly determined through appeal to rankings of states of affairs as better and worse. This covert support for consequentialism from the theory of action, I argue, has had a distorting effect on debates in normative ethics. I then present challenges to each of these three commitments, a challenge to the first commitment by T.M. Scanlon, a challenge to the second by recent interpreters of Anscombe, and a new challenge to the third commitment that requires only minimal and prima facie plausible modifications to the Standard Story. The success of any one of the challenges, I demonstrate, is sufficient to block support from the theory of action for the teleological conception of reasons and the consequentialist evaluative framework. I close by demonstrating the pivotal role that such arguments grounded in the theory of action play in the current debate between evaluator-relative consequentialists and their critics.     

On the cultural constitution of collective memory

The study of collective memory needs to take into consideration the cultural context in which the remembering takes place. In this article, I analyse how functional variations of collective memory across cultures may influence the processes, practices, and outcomes of collective remembering. I then discuss the transitory nature of culture in affecting collective memory across an individual's lifespan as well as across time and generations. I borrow recent findings from cross-cultural research on autobiographical memory to illustrate the cultural effects, and propose a new approach to studying collective memory in which the individual, the collective, and the culture are treated as a single unit of analysis.     

Autonomy and Common Good: Interpreting Rousseau’s General Will

Rousseau’s project in his Social Contract was to construct a conception of human subjectivity and political institutions that would transcend what he saw to be the limits of liberal political theory of his time. I take this as a starting point to put forward an interpretation of his theory of the general will as a kind of social cognition that is able to preserve individual autonomy and freedom alongside concerns with the collective welfare of the community. But whereas many have seen Rousseau’s ideas as a prelude to communitarianism or authoritarianism, we should instead see his project as articulating an alternative model of moral-cognitivist reasoning. In order to provide a framework for this interpretation, I propose reading his conception of the general will through the theory of collective intentionality and social ontology. I end with a consideration of how this interpretation of the general will can provide a more satisfying understanding of political and practical rationality contemporary debates over republicanism and liberalism.     

Variable Priorities and Exclusionary Reasons in Input/Output Logic

Jörg Hansen, John Horty, and Xavier Parent and Leendert van der Torre have all recently described some sort of nonmonotonic logic to model reasons and their interactions. Horty’s framework is broader in scope than the other two, encompassing both reasoning about the relative strengths of reasons and reasoning about which reasons to consider in the first place. Hansen discusses a plethora of approaches and examples, including Horty’s, arguing that his preferred system best captures our intuitions. And Parent and van der Torre present a family of systems of input/output logic, which are in some ways the most flexible. In this paper, I aim to combine these features. Without attempting to answer the question of which intuitions are the best to capture, I first argue that there are good reasons to explore systems that behave more like Hansen’s than Horty’s. I then show that Parent and van der Torre’s framework of input/output logic can exactly duplicate Hansen’s system but is flexible enough to produce other results as well. Finally, I extend their framework to include the additional kinds of reasoning Horty discusses, showing that the resulting theory can handle a wider range of cases than Horty’s.     

Defining Islamic modernity through creative writing: a case study of Indonesian domestic workers in Hong Kong

Indonesian domestic workers (IDWs) have been frequently stereotyped as uneducated and submissive women with little or no bargaining power in transnational labour migration. This article examines why and how literacy practices help foster the activism of IDWs in Hong Kong. In particular, I seek to understand the significance of IDWs’ writing in relation to Islamic modernities. Using the framework of alternative modernities, I argue that the creative process of IDWs’ writing sheds light to their attempts to exercise individual and collective agency. Specifically, the article looks at the role of Forum Lingkar Pena (Pen Circle Forum, FLP) Hong Kong, an IDW writing community, to reveal how its collective literacy practices help affirm Islamic values as part of a modernisation process on IDWs’ own terms.     

On the Prospects of Collective Informed Consent

abstract    It has been suggested that collective informed consent procedures could be used in solving moral problems arising in connection with such collective arrangements as land use planning, business administration, and developing new technology. Critics have however argued that informed consent is not an appropriate method for collective moral decision-making for three reasons. Firstly, informed consent procedures only allow the affected parties to choose between rejecting and accepting certain predetermined options, while those parties should be allowed to take part in the decision-making process as a whole. Secondly, identifying the parties whose informed consent should be sought would in many cases be problematic. Thirdly, informed consent is a veto power concept, and granting all parties affected by a collective arrangement veto power as to its completion would make taking such collective action extremely difficult. In this article, it is argued that these criticisms do not undermine collective informed consent.     

Responsibility and Judgment

I focus on the type of responsibility that an agent has for actions that express his practical identity, making it appropriate to evaluate him on the basis of those actions. This kind of responsibility is often called attributability. In this paper, I argue for a novel view of attributability—the Judgment Responsiveness View (JRV). According to the JRV, an agent is attributability responsible for an action A if and only if A results from either 1) his responding to his judgments about the (normative) reasons that he has in favor of doing A by doing A or 2) his failing to exercise his capacity to respond to his judgments about the (normative) reasons that he has against doing A by not doing A. The JRV diverges from other views of attributability for actions in two significant respects. First, it is not reasonably thought of as a “deep self view.” According to deep self views, attributable actions are actions that express deep features of the agent, such as his fundamental values, cares, or commitments. As I show, thinking in terms of the deep self is too narrow for attributability. Second, unlike other views, the JRV claims—via condition 2)—that we can be attributionally responsible for actions that result from failing to exercise the attributability‐relevant capacity to avoid them. My argument for the JRV thus shows that attributability is a broader and richer conception of responsibility than has been previously thought.     

A Reliability Generalization Study of Coefficient Alpha for the Life Orientation Test

The Pd, K and L scales of the MMPI and four of Kolberg's Moral Judgment Situations were administered to three criterion groups; adolescent delinquents, college students, and individuals belonging to a therapy collective which provides free community service. Greater than 50% of both the delinquent and therapy collective subjects were classified as psychopathic, (Pd + K T score > 70). The three subject groups obtained significantly different moral maturity scores with the therapy collective subjects receiving the highest moral maturity mean score. The results of two stepwise regression analyses found no relationship between Pd scores and moral maturity scores.     

学习判断及其准确性

学习判断是元认知判断的一种重要形式,是对未来记忆成绩的预测。产生机制及其准确性是学习判断研究的核心问题。研究者从不同的角度提出了多种理论,试图说明学习判断的机制与准确性。Koriat的线索模型总结了以往的研究发现,加深了人们对学习判断的理解,但该模型也面临着新的挑战。文章指出了已有研究中存在的问题及未来研究的方向。     

Unintentional collective action

In this paper, I examine the manner in which analyses of the action of single agents have been pressed into service for constructing accounts of collective action. Specifically, I argue that the best analogy to collective action is a class of individual action that Carl Ginet has called ‘aggregate action.’ Furthermore, once we use aggregate action as a model of collective action, then we see that existing accounts of collective action have failed to accommodate an important class of (what I shall call) ‘unintentional collective actions.’