Evidence in medicine can come from more or less trustworthy sources and be produced by more or less reliable methods, and its interpretation can be disputed. As such, it can be unclear when disagreements in medicine result from different, but reasonable, interpretations of the available evidence and when they result from unreasonable refusals to consider legitimate evidence. In this article, we seek to show how assessments of the relevance and implications of evidence are typically affected by factors beyond that evidence (...) itself, such as our beliefs about the credibility of the speaker or source of the evidence. In evaluating evidence, there is thus a need for reflective awareness about why we accept or dismiss particular claims. (shrink)

This paper articulates in formal terms a crucial distinction concerning future contingents, the distinction between what is true about the future and what is reasonable to believe about the future. Its key idea is that the branching structures that have been used so far to model truth can be employed to define an epistemic property, credibility, which we take to be closely related to knowledge and assertibility, and which is ultimately reducible to probability. As a result, two kinds of (...) claims about future contingents—one concerning truth, the other concerning credibility—can be smoothly handled within a single semantic framework. (shrink)

A credible fear test is an in-depth interview process given to undocumented people of any age arriving at a U.S. port of entry to determine qualification for asylum-seeking. Credible fear tests as a typical immigration procedure demonstrate not only what structural epistemic violence looks like but also how this violence lives in and through the design of asylum policy. Key terms of credible fear tests such as “significant possibility,” “evidence,” “consistency,” and “credibility” can never be neutral in the context (...) of colonial administrative violence. We argue that these terms function as mechanisms of exclusion and demonstrate that the capacity to be violent (i.e. to be an instrument of violence) is built into these tests, ready to be deployed when an administration wants to stop certain people from certain places from entering without regard to their own ongoing occupation of Indigenous lands. Not only are such practices instruments of violence, but the concept of ‘violence’ continues to be organized, defined, and conceived within settler colonial epistemologies so as to exclude these administrative forms of violence deployed against Indigenous peoples and people of color from recognition and nameability. We argue that this is an intentional strategy of colonial power preservation that is functionalized through social processes that remain structurally stable and self-regenerating across historical and political changes. (shrink)

This paper asks how, in science in general and in economics in particular, theoretical models aid the understanding of real-world phenomena. Using specific models in economics and biology as test cases, it considers three alternative answers: that models are tools for isolating the ‘capacities’ of causal factors in the real world; that modelling is ‘conceptual exploration’ which ultimately contributes to the development of genuinely explanatory theories; and that models are credible counterfactual worlds from which inductive inferences can be made. The (...) paper argues that the ‘credible worlds’ account captures significant aspects of scientific practice, even if many modellers see their work as conceptual exploration. (shrink)

Several philosophers of science claim that scientific toy models afford knowledge of possibility, but answers to the question of why toy models can be expected to competently play this role are scarce. The main line of reply is that toy models support possibility claims insofar as they are credible. I raise a challenge for this credibility-thesis, drawing on a familiar problem for imagination-based modal epistemologies, and argue that it remains unanswered in the current literature. The credibility-thesis has a (...) long way to go if it is to account for the epistemic merits of toy models. (shrink)

Open Access: This paper will connect literature on epistemic injustice with literature on victims and perpetrators, to argue that in addition to considering the credibility deficit suffered by many victims, we should also consider the credibility excess accorded to many perpetrators. Epistemic injustice, as discussed by Miranda Fricker, considers ways in which someone might be wronged in their capacity as a knower. Testimonial injustice occurs when there is a credibility deficit as a result of identity-prejudicial stereotypes. However, (...) criticisms of Fricker have pointed out that credibility is part of a more complex system that includes both deficits and excesses. I will use these points to argue that we should look closer at sources of credibility excess in cases of sexual assault. This means that in addition to considering sources of victim blaming by looking at ways in which “ideal” victims are constructed, we also need to consider ways in which “ideal” perpetrators are constructed. (shrink)

Purpose Employees may feel overwhelmed with information privacy choices and have difficulties understanding what they are committing to in the digital workplace. This paper aims to analyze the role of different thinking styles for effort reduction, such as the use of intuition, when employees make decisions about the credibility and trustworthiness of workplace information privacy issues in Slovakia. While the General Data Protection Regulation sets precise requirements for valid consent, organizations are classified as data controllers and are subject to (...) credibility judgments by their employees. Design/methodology/approach Data was collected from 230 employees in Slovakia using a survey questionnaire. Quantitative analysis using SPSS was conducted to describe employees thinking preferences when judging the credibility of information privacy in their organizations. Findings The survey participants revealed their perceived credibility and trust in personal data protection and thinking preferences. Unconscious thinking is the type of effort reduction often reported by participants, who perceive high credibility and trust in personal data protection. This study can help managers and data controllers in small- and medium-sized enterprises in reflecting about the way in which people use different thinking processes for decision-making about information privacy in their organizations. Research limitations/implications This study set out to explore how decision-making processes at the workplace relate to credibility of data practices. Focusing on the use of different types of intuition, the authors explored whether the preference for a specific decision-making style can explain the perceived credibility of data practices. The part of the workforce in the sample did not have a strict predisposition to use either intuitive or rational thinking. Practical implications The contribution provides scholars with an overview of the field of intuition, a field that is likely to grow given the challenges of digitalization for organizations, such as shitstorms, cyberattacks and whistleblowing. Originality/value The most well-known concepts from intuition research, e.g. the dual process theory, and practice are tested simultaneously, therewith contributing to the applied literature on domain-specific preferences for intuition and deliberation in decision-making. (shrink)

Prior research suggests that corporate credibility is associated with firm financial performance in developed countries. This article examines whether corporate credibility is related to firm performance using Economic Observer's rating of corporate credibility in China, the largest emerging market in the world. Based on a four-stage valuation model, we find that more reputable and credible firms outperform those with low ratings by almost 20% in 3-year stock returns and have better 3-year net profit margins, return on equity, (...) and sales growth. This study is the first to directly examine the relationship between corporate credibility and firm performance in emerging markets such as China, and our results confirm that firms with high credibility exhibit better financial and market performance at least in the following 3 years. (shrink)

In this article we defend the inferential view of scientific models and idealisation. Models are seen as “inferential prostheses” (instruments for surrogative reasoning) construed by means of an idealisation-concretisation process, which we essentially understand as a kind of counterfactual deformation procedure (also analysed in inferential terms). The value of scientific representation is understood in terms not only of the success of the inferential outcomes arrived at with its help, but also of the heuristic power of representation and their capacity to (...) correct and improve our models. This provides us with an argument against Sugden’s account of credible models: the likelihood or realisticness (their “credibility”) is not always a good measure of their acceptability. As opposed to “credibility” we propose the notion of “enlightening”, which is the capacity of giving us understanding in the sense of an inferential ability. (shrink)

This paper defends a contextualist approach to epistemic injustice according to which instances of such injustice should be looked at as temporally extended phenomena (having developmental and historical trajectories) and socially extended phenomena (being rooted in patterns of social relations). Within this contextualist framework, credibility excesses appear as a form of undeserved epistemic privilege that is crucially relevant for matters of testimonial justice. While drawing on Miranda Fricker's proportional view of epistemic justice, I take issue with its lack of (...) attention to the role that credibility excesses play in testimonial injustices. I depart from Fricker's view of the relation between credibility excesses and credibility deficits, and I offer an alternative account of the contributions that undeserved epistemic privileges make to epistemic injustices. Then, through the detailed analysis of To kill a mockingbird, I elucidate the crucial role played by the social imaginary in creating and sustaining epistemic injustices, developing an analysis of the kind of social blindness produced by an oppressive social imaginary that establishes unjust patterns of credibility excesses and deficits. (shrink)

How does the monitoring of a testifier's credibility by recipients of testimony bear upon the epistemic licence accruing to a recipient's belief in the testifier's communications? According to an intuitive and philosophically influential conception, licensed acceptance of testimony requires that recipients of testimony monitor testifiers with respect to their credibility. I argue that this conception, however, proves to be untenable when confronted with the wealth of empirical evidence bearing on the ways in which testifiers and their interlocutors actually (...) interact. (shrink)

I propose that testimony is subject to a norm that is backed by a credibility sanction: whenever the norm is violated, it is appropriate for the testifier to lose some credibility for their future testimony. This is one of a family of sanction-based norms, where violation of the norm makes it appropriate to lose some power; in this case, the power to induce belief through testimony. The applicability of the credibility norm to testimony follows from the epistemology (...) of testimony, in that false or unjustified testimony weakens the reason for belief that is provided by the speaker's future testimony. (shrink)

In a broad brush, biological models are often constructed in two general types: as a concrete model; as an abstract model. A concrete model is a material model such as model organisms, while an abstract model is a mathematical or computational model consists of equations or algorithms. Though there are types of biological models that cannot be strictly categorized as either concrete or abstract, they are falling somewhere in between this spectrum. In view of the fact that biological phenomena are (...) sui generis and distinct from physical phenomena in many respects, using the concepts in standard modeling fails to account for the differences between biological sciences and physical sciences. Drawing from the resources of a credible-world account of models in economic modeling, I propose to reinterpret abstract models and concrete models in the light of the credible world account of models. (shrink)

Music comprises a diverse category of cognitive phenomena that likely represent both the effects of psychological adaptations that are specific to music (e.g., rhythmic entrainment) and the effects of adaptations for non-musical functions (e.g., auditory scene analysis). How did music evolve? Here, we show that prevailing views on the evolution of music – that music is a byproduct of other evolved faculties, evolved for social bonding, or evolved to signal mate quality – are incomplete or wrong. We argue instead that (...) music evolved as a credible signal in at least two contexts: coalitional interactions and infant care. Specifically, we propose that (1) the production and reception of coordinated, entrained rhythmic displays is a co-evolved system for credibly signaling coalition strength, size, and coordination ability; and (2) the production and reception of infant-directed song is a co-evolved system for credibly signaling parental attention to secondarily altricial infants. These proposals, supported by interdisciplinary evidence, suggest that basic features of music, such as melody and rhythm, result from adaptations in the proper domain of human music. The adaptations provide a foundation for the cultural evolution of music in its actual domain, yielding the diversity of musical forms and musical behaviors found worldwide. (shrink)

Risk communicators often need to communicate probabilistic predictions. On occasion, an event with 10% likelihood will occur, or one with 90% likelihood will not – a probabilistically unexpected ou...

The COVID-19 pandemic has led to the widespread use of online hearings in arbitral proceedings, raising questions about the impact of such proceedings on the determination of facts underlying a dispute. This article explores the extent to which online hearings may hinder arbitrators’ ability to assess witness credibility by drawing upon the cognitive psychology literature on truthfulness determination and lie detection. A survey of the literature suggests that the ability to differentiate truthful from dishonest statements through verbal and nonverbal (...) cues is limited, leading to the notion that observing behaviors like fidgeting, gaze aversion, vocal pitch, or body posture is not particularly relevant in assessing the credibility of a witness. Instead, focusing on the content of what is reported appears to be the most relevant strategy to determine credibility. Therefore, research does not support the idea that face-to-face contact with witnesses is essential to determine the facts of a dispute. Still, the use of in-person hearings may, in practice, continue to be preferred due to underlying cultural assumptions regarding the nature of hearings, the facilitation of communication between parties, counsel, and the tribunal, and a general sense of _Zoom fatigue_. (shrink)

This paper develops a descriptive and normative account of how people respond to testimony. It postulates a default pathway in which people more or less automatically respond to a claim by accepting it, as long as the claim made is consistent with their beliefs and the source is credible. Otherwise, people enter a reflective pathway in which they evaluate the claim based on its explanatory coherence with everything else they believe. Computer simulations show how explanatory coherence can be maximized in (...) real-life cases, taking into account all the relevant evidence including the credibility of whoever is making a claim. The explanatory-coherence account is more plausible both descriptively and normatively than a Bayesian account. (shrink)

The book deeply analyses the bilateral relations between Switzerland and the European Union and their effect on the former's sovereignty in the context of Europeanisation. This touches on philosophical debates on the complexity of sovereignty. What sovereignty is at stake when talking about Swiss-EU relations? This issue not only faces the elusiveness of sovereignty as a concept, but also the proliferation of hypocrisy on its presence within states. The book encounters the deconstructionist hypothesis stating that there is nothing to worry (...) about but the belief there is something to worry about. Derrida's deconstruction of sovereignty allows indeed one to grasp the fictional essence of sovereignty based on the metaphysics of presence. The presence of self-positing sovereign inches per secondeity is fictional since absent in the present, but spectrally present in the belief of its presence to come. Sovereignty is a matter of credibility, or the credible promise of a normative statement to come. Hence, the book challenges the realist/neorealist argument stating that states are credibly sovereign until proven otherwise and explains that the debate on state sovereignty calls for the unveiling of this hypocritical epistemology cunningly disguised as an objective presence. Swiss-EU relations thus become the cornerstone to not only theorise but also test sovereignty and deconstruct the two ontological and epistemological sides of the same coin, or the modern hypocrisy of sovereignty. This deconstruction constitutes the very problématique of any attempt to understand whether and how a state can be sovereign and solve the problem as to how to neutralise the différance and identify the difference between credible and incredible claims of sovereignty. This problématique connects the theory and practice of sovereignty innovatively, providing positivist evidence on the arguable credibility of the Swiss claim of sovereignty and confirming the presence of a theological dimension within politics.<. (shrink)

In 2018, Attorney General Jeff Sessions, in Matter of A-B-, attempted to bar victims of non-state actors—such as intimate partners and local gangs—from obtaining asylum in the United States. This article focuses on domestic violence-based asylum claims that made it to the US Circuit Court of Appeals during the Trump administration and the first five months of the Biden administration. My interdisciplinary approach goes beyond analysing the effect that Matter of A-B- has had on the outcomes of cases and asks (...) how judges evaluate the credibility of petitioners, determine whether domestic violence can rise to the level of persecution, and decide whether a government was unwilling or unable to protect the victim. A systematic analysis of 83 appellate level verdicts shows that asylum decisions are fraught with inconsistencies and that many judges lack a sophisticated understanding of domestic violence, credibility, and trauma. (shrink)

Five types of constructions are introduced for non-prioritized belief revision, i.e., belief revision in which the input sentence is not always accepted. These constructions include generalizations of entrenchment-based and sphere-based revision. Axiomatic characterizations are provided, and close interconnections are shown to hold between the different constructions.

In this article we defend the inferential view of scientific models and idealisation. Models are seen as “inferential prostheses” (instruments for surrogative reasoning) construed by means of an idealisation-concretisation process, which we essentially understand as a kind of counterfactual deformation procedure (also analysed in inferential terms). The value of scientific representation is understood in terms not only of the success of the inferential outcomes arrived at with its help, but also of the heuristic power of representation and their capacity to (...) correct and improve our models. This provides us with an argument against Sugden’s account of credible models: the likelihood or realisticness (their “credibility”) is not always a good measure of their acceptability. As opposed to “credibility” we propose the notion of “enlightening”, which is the capacity of giving us understanding in the sense of an inferential ability. (shrink)

Hume’s famous argument against the credibility of testimony about miracles invokes two premises: 1) The reliability of the witness (the extent to which he is informed and truthful) must be compared with the intrinsic probability of the miracle. 2) The initial probability of a miracle is always small enough to outweigh the improbability that the testimony is false (even when the witness is assumed to be reliable). I defend the first premise of the argument, showing that Hume’s argument can (...) be applied to purported observations of miracles, as well. I then show that Hume failed to provide an adequate support for his second premise. A more cogent defence can be provided for a weaker premise. The resultant argument has, consequently, a less sweeping conclusion than Hume’s. (shrink)

Five types of constructions are introduced for non-prioritized belief revision, i.e., belief revision in which the input sentence is not always accepted. These constructions include generalizations of entrenchment-based and sphere-based revision. Axiomatic characterizations are provided, and close interconnections are shown to hold between the different constructions.

ArgumentWe expand upon the notion of the “credibility cycle” through a study of credibility engineering by the food industry. Research and development (R&D) as well as marketing contribute to the credibility of the food company Unilever and its claims. Innovation encompasses the development, marketing, and sales of products. These are directed towards three distinct audiences: scientific peers, regulators, and consumers. R&D uses scientific articles to create credit for itself amongst peers and regulators. These articles are used to (...) support health claims on products. However, R&D, regulation, and marketing are not separate realms. A single strategy of credibility engineering connects health claims to a specific public through linking that public to a health issue and a food product. (shrink)

Climate models don’t give us probabilistic forecasts. To interpret their results, alternatively, as serious possibilities seems problematic inasmuch as climate models rely on contrary-to-fact assumptions: why should we consider their implications as possible if their assumptions are known to be false? The paper explores a way to address this possibilistic challenge. It introduces the concepts of a perfect and of an imperfect credible world, and discusses whether climate models can be interpreted as imperfect credible worlds. That would allow one to (...) use models for possibilistic prediction and salvage widespread scientific practice. (shrink)

Several recent authors have argued that children are subject to testimonial injustice in the same way as are women, Blacks, and several other social identity groups. Testimonial injustice is standardly conceptualized, following Miranda Fricker’s seminal account, as a wrongful credibility deficit. I argue that this concept of testimonial injustice is too narrow to capture testimonial injustice against children. There is good reason to think that children are less reliable testifiers than adults, so it is not necessarily wrong to assign (...) a credibility deficit to a child speaker, in the way it is wrong in the case of a female or black speaker. However, I argue that children are nevertheless subjected to testimonial injustice. Testimonial injustice against children is constituted primarily by a failure to actively inquire into assertions by children — that is, by a failure to patiently and reflectively engage in discourse with the child to discover what they may know. (shrink)

In this article we defend the inferential view of scientific models and idealisation. Models are seen as “inferential prostheses” (instruments for surrogative reasoning) construed by means of an idealisation-concretisation process, which we essentially understand as a kind of counterfactual deformation procedure (also analysed in inferential terms). The value of scientific representation is understood in terms not only of the success of the inferential outcomes arrived at with its help, but also of the heuristic power of representation and their capacity to (...) correct and improve our models. This provides us with an argument against Sugden’s account of credible models: the likelihood or realisticness (their “credibility”) is not always a good measure of their acceptability. As opposed to “credibility” we propose the notion of “enlightening”, which is the capacity of giving us understanding in the sense of an inferential ability. (shrink)

Economists evaluate their models in terms of credibility. For example, Rothschild and Stiglitz argued from a model of a completive insurance market that under the “plausible” (632) assumption of information asymmetry, one can “credibly” infer the non-existence of equilibria in specific situations – despite the fact that, as they admit, the real ‘market … for insurance is probably not competitive’ (648).1 Another example is Richard Thaler’s column on anomalies of (micro-) economic theory. From 1987 to 2001, he headed every (...) article with the following sentence: ‘An empirical result is anomalous if it is difficult to rationalize, or if implausible assumptions are necessary to explain it within the paradigm’.2 Or, yet another example, Hans Lind concludes in a survey of mathematical models of rent control that ‘what is shown in the model[s]…is just one type of argument…for why a certain story is more credible than a competing story. (shrink)

There is an undeniable tendency to dismiss women’s sexual assault allegations out of hand. However, this tendency is not monolithic—allegations that black men have raped white women are often met with deadly seriousness. I argue that contemporary rape culture is characterized by the interplay between rape myths that minimize rape, and myths that catastrophize rape. Together, these two sets of rape myths distort the epistemic resources that people use when assessing rape allegations. These distortions result in the unjust exoneration of (...) people we cannot conceive of as monstrous, while making it too easy to believe that some marginalized people could be rapists. I also argue that rape myths enable a novel kind of epistemic injustice. This injustice concerns how our assessments of trustworthiness and our assessments of plausibility interact. I argue that rape myths can result in runaway credibility deflations that can explain both why people fail to believe most women, and also why people may unjustly believe false allegations that white women have been raped by black men. (shrink)

Building on a view of both narration and argumentation as dynamic concepts, this paper considers ways of assessing the credibility of narrative arguments constructed in empirical examples of conversational discourse. I argue that the key in any such exercise is to pay close attention to both structural and pragmatic details, particularly how conversational storytelling gets embedded in the surrounding discourse and how the way this is discursively accomplished vis-à-vis the narrators’ multilayered audience may be reflective of their argumentative goals.

Building on a view of both narration and argumentation as dynamic concepts, this paper considers ways of assessing the credibility of narrative arguments constructed in empirical examples of conversational discourse. I argue that the key in any such exercise is to pay close attention to both structural and pragmatic details, particularly how conversational storytelling gets embedded in the surrounding discourse and how the way this is discursively accomplished vis-à-vis the narrators’ multilayered audience may be reflective of their argumentative goals.

This short paper aims to present some philosophical considerations about the relationship between credibility and the uses of evidence. The point of view regarding evidence and scientific and political decisions in this paper focuses on the current world situation of the COVID-19.

Miracle in a strict sense is to be discriminated from acts of special providence by its being radically unnatural in terms of prior expectation. The key issue in relation to credibility is theological in character, inasmuch as divine consistency must imply that miracles are capable of being understood as “signs,” affording deeper insight into the divine care for creation. These issues are explored by reference to scriptural miracles, particularly the virginal conception and the resurrection of Christ.

Individuals with populist radical-right (PRR) attitudes seem particularly inclined to spread disinformation. However, it is unclear whether this is due to the large amount of disinformation with a PRR bias or a general tendency to perceive disinformation as credible and/or spread it further. This study explores (1) effects of a PRR bias on perceived message credibility and likelihood of spreading disinformation, (2) the extent to which perceived message credibility mediates the spread of disinformation, (3) effects of PRR attitudes (...) on the perceived message credibility of biased disinformation, and (4) whether a PRR bias of disinformation explains the spread of disinformation by individuals with PRR attitudes despite a lack of credibility. An online experimental study (N = 572) in Germany showed that the spread of disinformation is mediated by perceived message credibility of disinformation. PRR attitudes positively predict perceived message credibility regardless of whether it is biased or unbiased disinformation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Credibility, Persuasiveness, and EffectivenessPatricia A. King (bio)Since the early 1970s, complex ethical, social, legal, and scientific controversies generated by biomedicine have been referred to governmentally created commissions, committees, boards, and panels that are commonly referred to as “ethics” committees. The Advisory Committee on Human Radiation Experiments is the most recent example of such a group. Although it is too early to know the full impact of the Committee’s (...) work, it is important to reflect on aspects of its deliberations that shed light on the public policy role of ethics bodies. Specifically, I will reflect on matters that go to the credibility, persuasiveness, and effectiveness of these committees.The point should be made at the outset that these ethics committees are, first and foremost, public policy groups. Governmentally created bodies of all types, including ethics committees, are established to provide pragmatic advice to governments about specific problems and controversies or to complete specified tasks on behalf of governments. What distinguishes ethics committees from other advisory groups is that the issues assigned to them are presumed to be primarily ethical, as opposed to, say, economic, in nature. It is expected that ethical analyses and premises will play a significant, albeit not exclusive, role in the committee’s deliberations. 1 As with other advisory groups, the primary responsibility of ethics committees is to respond to the branches of government that were instrumental in their creation as well as to the public at large. Since political concerns undoubtedly play a role in the creation of these groups, it is understandable that political concerns have some impact on the committee’s work. Thus, ethics committees are generally cognizant of the need to ensure that their processes and substantive conclusions are credible, persuasive, and effective.In my experience, members of ethics commissions understand the need to offer principled arguments that are factually accurate to justify their recommendations and conclusions. They also appreciate the need for consensus and rightly worry about disagreement among members. I believe, however, that committee members are less attentive than they should be to the social and political contexts in which they operate. This is not surprising. Members of these committees, and often their staffs as well, are typically experts drawn from the academy. [End Page 313] Scholars traditionally offer advice or influence policy through articles and scholarly work undertaken individually or in cooperation with like-minded individuals who do not need to be persuaded about the merits of a specific position. Moreover, scholarly articles are often pitched at a level of abstraction that may be of limited utility in the context of concrete decision making.Scholarly efforts are important. Particularly in bioethics, these scholarly efforts often have furnished the conceptual frameworks that are critical to the efforts of those who grapple with complex matters, the appropriate resolution of which pose moral disagreement and genuine perplexity. Policy formulation by its very nature, however, requires more. Attention must be paid to competing moral and social frameworks. Logical, rational arguments and risk/benefit assessments are important, but emotion, passion and values grounded in experience also demand consideration. Policy formulation as a result can be a quite messy process.Members of the academy are often uncomfortable in this environment. Pursuing the messy details can be threatening and at times at odds with values that academics prize highly. I believe this discomfort was evident in the reluctance of several Advisory Committee members to obtain security clearances that were required in order to see classified material related to the Committee’s work. Secrecy may have seemed at odds with cherished values of openness. As a result the perusal of classified materials was left to those with clearances. Fortunately, the Committee was successful in having relevant information declassified so all committee members read and deliberated about the same information. Committees needing to see more contemporaneous classified information might not be so fortunate.Ethics commission members correctly worry about disagreement. The ability to reach consensus helps to give recommendations a compelling quality. Morris Abram, chairman of the President’s Commission for the Study of Ethical Problems in Medicine and Biomedical and Behavioral Research, makes this point powerfully. He states that “a commission requires agreement that is as... (shrink)

The cognitive hierarchy model is an approach to decision making in multi-agent interactions motivated by laboratory studies of people. It bases decisions on empirical assumptions about agents’ likely play and agents’ limited abilities to second-guess their opponents. It is attractive as a model of human reasoning in economic settings, and has proved successful in designing agents that perform effectively in interactions not only with similar strategies but also with sophisticated agents, with simpler computer programs, and with people. In this paper, (...) we explore the qualitative structure of iterating best response solutions in two repeated games, one without messages and the other including communication in the form of non-binding promises and threats. Once the model anticipates interacting with sufficiently sophisticated agents with a sufficiently high probability, reasoning leads to policies that disclose intentions truthfully, and expect credibility from the agents they interact with, even as those policies act aggressively to discover and exploit other agents’ weaknesses and idiosyncrasies. Non-binding communication improves overall agent performance in our experiments. (shrink)

THE PAPER EXAMINES WHAT IS MEANT BY ’EVIDENCE’ WHEN IT IS SAID THAT A THEORY IS PROBABLE ON CERTAIN EVIDENCE. IT CONSIDERS WHAT IS THE RELATION BETWEEN A THEORY BEING PROBABLE ON CERTAIN EVIDENCE, A THEORY BEING BELIEVED, AND A THEORY BEING CREDIBLE. IT DISTINGUISHES VARIOUS SENSES OF ’ACCEPT’ IN WHICH SCIENTISTS ARE SAID TO ACCEPT THEORIES, ONLY ONE OF WHICH IS THE SENSE OF ’ACCEPT’ IN WHICH IT IS EQUATED WITH ’BELIEVE’. IT ANALYSES THE LOGICAL RELATIONS BETWEEN A THEORY (...) BEING PROBABLE ON THE EVIDENCE, AND A THEORY BEING ACCEPTED, AND A THEORY BEING ACCEPTABLE, IN THE DIFFERENT SENSES OF ’ACCEPT’. (shrink)

This paper proposes the use of an argumentation framework with recursive attacks to address a trust model in a collaborative open multi-agent system. Our approach is focused on scenarios where agents share information about the credibility (informational trust) they have assigned to their peers. We will represent informants’ credibility through credibility objects which will include not only trust information but also the informant source. This leads to a recursive setting where the reliability of certain credibility information (...) depends on the credibility of other pieces of information that should be subject to the same analysis. Credibility objects are maintained in a credibility base which can have information in conflict. In this scenario, we will formally show that our proposal will produce a partially ordered credibility relation; such relation contains the information that can be justified by an argumentation process. (shrink)

This study examines the use of names in the construction of “credibility” as a journalistic duty. Using the framework set forth by Tuchman (1972) of objectivity as a “strategic ritual,” the study discusses the ethical justifications put forth by the New York Times for the process through which it decided to identify a CIA interrogator who had been involved in questioning 9/11 captives. The examination concludes that the facticity of naming should ultimately be uncoupled from the concept of (...) class='Hi'>credibility. (shrink)

Miranda Fricker has influentially discussed testimonial injustice: the injustice done to a speaker S by a hearer H when H gives S less-than-merited credibility. Here, I explore the prospects for a novel form of testimonial injustice, where H affords S due credibility, that is, the amount of credibility S deserves. I present two kinds of cases intended to illustrate this category, and argue that there is presumptive reason to think that testimonial injustice with due credibility exists. (...) I show that if it is denied that ultimately these cases exemplify testimonial injustice without credibility deficit, then either they must be taken to exemplify a novel kind of epistemic, non-testimonial injustice, or they bring to light a significant exegetical result. (shrink)

Credibility is particularly important in organic food systems because there are only marginal visual and sensorial differences between organic and conventionally produced products, requiring consumers to trust in producers’ quality claims. In this article I explore what challenges the credibility of organic food systems and I explore how credibility of organic food systems can be maintained, using the Danish organic food system as a case study. The question is increasingly relevant as the sale of organic food is (...) growing in Denmark as well as globally, and consumers’ expectations of organics continuously evolve. The inquiry is threefold, first I outline a conceptual framework for understanding trust and credibility in the food system, secondly I explore the developments in Danish organic food systems and thirdly discuss the challenges and opportunities for maintaining trust in the Danish organic food system. In the analysis I indicate eight key challenges: unrealistic expectations, blind trust and little motivation for extending their knowledge, consumers assess the overall credibility of organic products, ambitious ethical principles, new consumer groups introduce new expectations, frozen requirements in a changing world, growing imports and labelling and multiple versions of organics and the diversity is growing, as well as four aspects which may maintain the credibility of organics if implemented: coordinate expectations, communicate requested information, institutional reform and open communication of pros and cons of organic production. (shrink)