The Exchange of Words is a philosophical exploration of human testimony, specifically as a form of intersubjective understanding in which speakers communicate by making themselves accountable for the truth of what they say. This account weaves together themes from philosophy of language, moral psychology, action theory, and epistemology, for a new approach to this basic human phenomenon.

This book might be said to be the exploration, first, of the 'fateful' consequences, and subsequently -- by a poetic transference of situation -- of the ...

Higher education exchange between America and the Middle East is a comparatively recent development, but the colorful history of circumstances and events that preceded the relationship is ancient and deep. Here, Brawner explores the multifarious and intriguing story from antiquity to the end of the twentieth century.

This paper begins by consider a straightforward question in the metaphysics and morality of markets: Are there cases in which it is morally permissible to freely give x (i.e. without exchange for valuable consideration), but impermissible to give x in exchange for valuable consideration? To address this question, this paper raises the issue of the difference between giving freely and giving in exchange for valuable consideration. It argues that the distinction lies in whether the receipt of valuable (...) consideration acts as a reason for the giver. If S receiving some valuable consideration for x is not a reason for S to give x, then x is not engaging in an exchange. This illuminates the discussion around the morality of markets. Instead of supposing that x transforms when it is exchanged (rather than given), the difference can be assessed in terms of the giver’s reasons. As such, S freely giving x may be morally permissible and S exchanging x impermissible if S taking a valuable consideration as a reason makes the act wrong. The paper illustrates this with cases where individuals may give x only for certain reasons, and therefore are not permitted to exchange x. Finally, the paper concludes with an analysis of how this approach to analyzing exchange can contribute to the discussion of the metaphysics of markets, and create a fine-grained analysis of the different varieties of impermissible exchanges in terms of the moral analyses we do for other acts; it connects the discussion of the morality of giving and exchanging some x to the morality of other actions, and giving their permissibility in terms of justificatory reasons, consequences, etc. In doing so, the paper represents a contribution to the broader discussion of the morality of markets by illustrating a way to develop an analysis of the morality of exchanges (an important constituent of markets). This analysis circumvents approaches in the metaphysics of markets that have raised skepticism, e.g. certain goods transform when placed on a market. While compatible with claims about transformative goods, this theory allows for an explanation of moral prohibitions against certain kinds of exchange only on the basis of the justificatory reasons of the agents involved in the exchange; this is a much more stable metaphysical base from which to evaluate the morality of markets and exchanges. (shrink)

This is the second of two volumes which together provide a comprehensive look at the rich and colorful history of higher education exchange between the United States and the countries of the Middle East. Twenty-first century developments, and the current scope and character of higher education exchange between America and the Middle East are explored in this new book.

본 논문에서는 동북아 이슬람에 관한 연구이다. 이슬람이 중국에 유입되면서 유학의 용어와 사상으로 해석한 역사가 있다. 이러한 번역 작업을 처음 시도한 무슬림 학자가 바로 왕대여(王垈與)이다. 그는 알라신, 세계 그리고 인식론을 언급하면서 유교적인 방식으로 해석한다. 그래서 알라신을 우주만물의 근원인 一로 해석하고, 세계를 무극과 태극, 음양과 사상의 도식으로 해석하고, 진주에 대한 인식 또한 ‘心與理’의 방식으로 이해하였다. 그리고 중국무슬림 학자들은 유학의 사유방식을 수용하면서도 유학의 한계를 이슬람으로 극복해야 한다고 주장한다. 유학은 현세의 도덕철학과 자연 법칙에 관해서는 충분하게 설명하고 있지만 우주의 기원과 종말에 관한 언급이 부족하다고 본다. (...) 그래서 유학의 한계를 이슬람의 종교성으로 보완할 필요가 있다고 주장한다. 그래서 중국이슬람은 이슬람 경전을 유학의 용어로 번역되는 과정에서 유학과 융합된 특징을 지닌다면, 유학은 그 자체의 전개과정에서 벗어나 타종교와의 만남을 통한 이론지평을 확장하였다고 평가할 수 있다. (shrink)

We give an account of some relationships between the principles of Constant and Atom Exchangeability and various generalizations of the Principle of Instantial Relevance within the framework of Inductive Logic. In particular we demonstrate some surprising and somewhat counterintuitive dependencies of these relationships on ostensibly unimportant parameters, such as the number of predicates in the overlying language.

The principle of exchange seems to be limited in its application, and it cannot serve as a link between utilitarianism and the idea of a market for interpersonal relations. Our preferences concern the inner states of other people as well as their overt behavior. The neglect of this aspect of our preferences is a result of the coupling of utilitarianism with behaviorism. The problem is thus behaviorism, not consequentialism. It might be argued that commensurability is wrong because it sanctions (...) impure practices - aside from any principle of exchange. In reply, it may be argued that the principle of purity is an intuitive one, which must be justified at a higher level. At the intuitive level, the purity principle competes with the view that practices are in some cases too pure already, and that blind purity cannot be maintained without educational deception. The apparent difficulty of making tradeoffs among different kinds of consequences is a problem in practice, not a problem in principle. The difficulty may indeed justify certain prescriptive rules, but a blanket prohibition against impure practices would seem to require considerable defense. (shrink)

"Proceedings of an international workshop held in memory of Professor Shlomo Pines at the Institute for Advanced Studies, The Hebrew University of Jerusalem, 28 February - 2 March 2005".

Clinical exchange: one model to achieve culturally sensitive care This paper reports on a clinical exchange programme that formed part of a pre‐registration European nursing degree run by three collaborating institutions in England, Holland and Spain. The course included: common and shared learning including two summer schools; and the development of a second language before the students went on a three‐month clinical placement in one of the other base institutions’ clinical environments. The aim of the course was to (...) enable students to become culturally sensitive carers. This was achieved by developing a programme based on transcultural nursing principles in theory and practice. Data were gathered by interview, focus groups, and questionnaires from 79 exchange students, fostering the strategies of illuminative evaluation. The paper examines: how the aims of the course were met; the factors that inhibited the attainment of certain goals; and how the acquisition of a second language influenced the students’ learning about nursing. A model is presented to illustrate the process of transformative learning from the exchange experience. (shrink)

We present two studies that examine the effects of guanxi on multiple social groups from the perspective of Chinese business people. Study 1 (N = 203) tests the difference in perceived effects of six guanxi contextualizations. Study 2 (N = 195) examines the duality of guanxi as either helpful or harmful to social groups, depending on the contextualization. Findings suggest guanxi may result in positive as well as negative outcomes for focal actors and the aggregate.

The mathematical notion of a permutation of indices in the state description admits different physical interpretations. Two main interpretations analyzed in this paper are: exchange of essences and exchange of haecceities. It is argued that adopting the essentialist approach leads to the conclusion, contrary to the conventional wisdom, that quantum particles of the same type are sometimes discernible by their properties. The indiscernibility thesis can be supported only by the alternative interpretation in terms of primitive thisness.

The best treatment for end-stage renal disease is the transplantation of a live donor kidney, but many people cannot donate to their loved ones because they are incompatible. Kidney exchange promises relief. Kidney exchange programmes use centralised procedures to match donors with recipients in a way that maximises the quantity and quality of transplants. However, the transplant laws in many countries render kidney exchange programmes impossible because of ethical concerns against these programmes or against kinds of kidney (...) donations on which these programmes rely. I give two novel arguments for the implementation of kidney exchange programmes. The first is that they are instrumental in meeting a moral obligation, namely to donate effectively. The second is that they may increase the motivation for altruistic donations, because the donation of one kidney may trigger >1 life savings. Moreover, ethical concerns are considered that are embodied in transplant laws preventing the implementation of kidney exchange, and it is argued that they can be overcome. (shrink)

This paper considers a range of infinite exchange problems, including one recent example discussed by Barrett and Arntzenius, and propose a general taxonomy based on cardinality considerations and the possibility of identifying and tracking the units of exchange.

This paper develops a formal framework to model a process in which the formation of individual opinions is embedded in a deliberative exchange with others. The paper opts for a low-resolution modeling approach and abstracts away from most of the details of the social-epistemic process. Taking a bird's eye view allows us to analyze the chances for the truth to be found and broadly accepted under conditions of cognitive division of labour combined with a social exchange process. Cognitive (...) division of labour means that only some individuals are active truth seekers, possibly with different capacities. Both mathematical tools and computer simulations are used to investigate the model. As an analytical result, the Funnel Theorem states that under rather weak conditions on the social process, a consensus on the truth will be reached if all individuals possess an arbitrarily small capacity to go for the truth. The Leading the pack Theorem states that under certain conditions even a single truth seeker may lead all individuals to the truth. Systematic simulations analyze how close agents can get to the truth depending upon the frequency of truth seekers, their capacities as truth seekers, the position of the truth (more to the extreme or more in the centre of an opinion space), and the willingness to take into account the opinions of others when exchanging and updating opinions. (shrink)

This paper develops a formal framework to model a process in which the formation of individual opinions is embedded in a deliberative exchange with others. The paper opts for a low-resolution modeling approach and abstracts away from most of the details of the social-epistemic process. Taking a bird's eye view allows us to analyze the chances for the truth to be found and broadly accepted under conditions of cognitive division of labour combined with a social exchange process. Cognitive (...) division of labour means that only some individuals are active truth seekers, possibly with different capacities. Both mathematical tools and computer simulations are used to investigate the model. As an analytical result, the Funnel Theorem states that under rather weak conditions on the social process, a consensus on the truth will be reached if all individuals possess an arbitrarily small capacity to go for the truth. The Leading the pack Theorem states that under certain conditions even a single truth seeker may lead all individuals to the truth. Systematic simulations analyze how close agents can get to the truth depending upon the frequency of truth seekers, their capacities as truth seekers, the position of the truth (more to the extreme or more in the centre of an opinion space), and the willingness to take into account the opinions of others when exchanging and updating opinions. (shrink)

This article reviews the qualitative changes that big data technology introduced to society, particularly changes that affect how individuals control the access, use and retention of their personal data. In particular interest is whether the practice of privacy self-management in this new context could still ensure the informed consent of individuals to the privacy terms of big data companies. It is concluded that that accepting big data companies’ privacy policies falls short of the disclosure and understanding requirements for informed consent. (...) The article argues that the practice of privacy self-management could remain viable if the review, understanding and acceptance of privacy agreements is streamlined, standardized and automated. Technology should be employed to counter the privacy problems created by big data technology. The creation of the privacy exchange authorities is proposed as a solution to the failures of privacy self-management. The PEA are intermediaries that empower individuals to define their own privacy terms and express informed consent in their dealings with data companies. They will create the technological infrastructure for individuals to select their own privacy terms from a list of standard choices, potentially only once. The PEA will further mediate the delivery and authentication of the individual users’ privacy terms to data companies. A logical proof of concept is offered, illustrating the potential steps involved in the creation of the PEA. (shrink)

This article explores Marx’s contention that the achievement of full personhood and, not just consequently, but simultaneously, of genuine intersubjectivity depends upon the attainment of recognition for one’s place in the social division of labour, recognition which is systematically denied to some individuals and groups of individuals through the capitalist organization of production and exchange. This reading is then employed in a critique of Axel Honneth’s theory of recognition which, it is argued, cannot account for the systematic obstacles faced (...) by some struggles for recognition. (shrink)

Venice and Padua are neighboring cities with a topographical and geopolitical distinction. Venice as a port city opened up towards Byzantium whereas Padua as a university city was a place of Humanism and research. The contributions analyze works of art as aesthetic formulations of their places of origin, which also have an effect on their surroundings. International experts investigate these two concepts and how the exchange worked.

Extant business ethics literature available for application to international business demonstrates some variety but no comprehensive principles. While the domains of both international business and business ethics are expanding, they are also becoming increasingly divergent. At the same time, the primacy accorded to the multinational enterprise in both fields ignores the socio-cultural and political embeddedness of economic activities, and multiple agencies in international business (individuals, firms, nations, etc.). Some international business theorists have offered the view that international exchange should (...) be the central building block for theories on international business. In this paper, it is argued that international exchange could be the fundamental unit of analysis for international business ethics as well. The potentially unifying features of exchange norms and ethical principles leads the author to develop some core exchange ethics principles that are tested on three recent international business practices. (shrink)

Writing in EIA 22, no. 1, Mathias Risse presented a novel way to think about the problem of immigration in the context of global justice, adopting the standpoint of the common ownership of the earth. The following Exchange is in response to that essay.

In Pure Inductive Logic, the rational principle of Predicate Exchangeability states that permuting the predicates in a given language L and replacing each occurrence of a predicate in an L-sentence phi according to this permutation should not change our belief in the truth of phi. In this paper we study when a prior probability function w on a purely unary language L satisfying Predicate Exchangeability also satisfies the principle of Unary Language Invariance.

When two people engage in a conversation, knowingly or unknowingly, they are playing a game. Players of such games have diverse objectives, or winning conditions: an applicant trying to convince her potential employer of her eligibility over that of a competitor, a prosecutor trying to convict a defendant, a politician trying to convince an electorate in a political debate, and so on. We argue that infinitary games offer a natural model for many structural characteristics of such conversations. We call such (...) games message exchange games, and we compare them to existing game theoretic frameworks used in linguistics—for example, signaling games—and show that message exchange games are needed to handle non-cooperative conversation. In this paper, we concentrate on conversational games where players’ interests are opposed. We provide a taxonomy of conversations based on their winning conditions, and we investigate some essential features of winning conditions like consistency and what we call rhetorical cooperativity. We show that these features make our games decomposition sensitive, a property we define formally in the paper. We show that this property has far-reaching implications for the existence of winning strategies and their complexity. There is a class of winning conditions for which message exchange games are equivalent to Banach- Mazur games, which have been extensively studied and enjoy nice topological results. But decomposition sensitive goals are much more the norm and much more interesting linguistically and philosophically. (shrink)

The idea of aesthetic disinterestedness has been a central concept in aesthetics since the late eighteenth century. This exchange offers a contemporary reconsideration of disinterestedness from different sides of the question.

Exchanging the Lies of the World for the Liberating Truth of God.

Medical therapy, research and technology enable us to make our bodies, or parts of them, available to others in an increasing number of ways. This is the case in organ, tissue, egg and sperm donation as well as in surrogate motherhood and clinical research. Bringing together leading scholars working on the ethical, social and cultural aspects of such bodily exchanges, this cutting-edge book develops new ways of understanding them. Bodily Exchanges, Bioethics and Border Crossing both probes the established giving and (...) selling frameworks for conceptualising bodily exchanges in medicine, and seeks to develop and examine another, less familiar framework: that of sharing. A framework of sharing can capture practices that involve giving up and giving away part of one's body, such as organ and tissue donation, and practices that do not, such as surrogacy and research participation. Sharing also recognizes the multiple relationalities that these exchanges can involve and invites inquiry into the context in which they occur. In addition, the book explores the multiple forms of border crossing that bodily exchanges in medicine involve, from the physical boundaries of the body to relational borders - as can happen in surrogacy - to national borders and the range of ethical issues that these various border-crossings can give rise to. Engaging with anthropology, sociology, philosophy, and feminist and postcolonical perspectives, this is an original and timely contribution to contemporary bioethics in a time of increasing globalization. It will be of use to students and researchers from a range of humanities and social science backgrounds as well as medical and other healthcare professionals with an interest in bioethics. (shrink)

The operation of fundamental forces in quantum field theory is explicated here as the exchange of particles, consistently with the standard methodology of particle physics. The particles involved are seen to bear little relation to any classical particle but, rather, comprise unified collections of compresent, conserved quantities indicated by propagators. The exchange particles, which supervene upon quantum fields, are neither more fundamental than fields nor replace them as has often previously been assumed in models of exchange forces. (...) It is argued that this explication of quantum field-theoretic exchange forces definitively improves upon its predecessors. (shrink)

When the United Kingdom has figured in the modern history of study abroad, it has featured almost exclusively in the role of host country with little attention paid to the study abroad patterns of UK students. In order to gain a rounded picture of the UK’s role in post-war study abroad, this article explores the position of the UK within the context of the rich data gathered by UNESCO. It argues that there is strong evidence that the UK was actually (...) one of the most active countries in sending its students overseas and that this activity increased (both in absolute terms and relative to other countries) significantly in the 1960s and 70s. Following a brief analysis of the UK’s role as both a host and exporter of study abroad students on a global scale, its relationship as a sender country with two particular geographical areas is considered: firstly, the Commonwealth that has been the focus of much of the existing secondary literature, and secondly, continental Europe and the USA which have featured much less frequently in the work of historians. Various reasons for the significant rise in the number of UK students studying abroad are explored – in particular, the role of government attitudes towards overseas study including the possibility of developing student exchange as an instrument of cultural diplomacy. The article pays particular attention to the period between the publication of the Robbins Report in 1963 and the beginnings of the institutionalisation of study abroad (in Europe) in the late 1970s. (shrink)

This article offers a reading of the effect of exchange on subjectivity. Two modes of exchange are discussed: commodity-exchange and gift-exchange. Following Marx, Simmel, Lukács, and Bewes, commodity exchange is argued to be detrimental to subjectivity insofar as it leads to abstract, mediated social relationships, and reifies the subject. Debates around the notion and application of reification are investigated. The anthropological insight of Mauss on gift-exchange is introduced and used to challenge elements of the (...) thesis of reification and process of on-going commodification. Gift-exchange is argued to perpetuate concrete, immediate social relations. Critical attention is drawn to the gift as critique of the commodity. My interrogation suggests that there is a problem because the gift is often over-idealized in much gift discourse and figures as a binary opposite to the commodity. This is especially the case with one of the leading contemporary theorists on the gift, Jacques Godbout. Themes that support the notion of the gift, such as family and community bonds, reciprocity, and ‘face to face’ relations, are often taken for granted as being fully enabling. On the other hand commodity exchange is perceived as being exclusively disabling. The article begins to challenge this thinking. (shrink)

In her account of scientific objectivity, feminist philosopher of science Helen Longino shows how scientific objectivity is not so much of individual practice, but rather a social commitment practiced by a scientific community, provided by the necessary accommodations for critical discourse. However, is this conception of scientific objectivity truly capable of living up to the social realities of critical discourse and deliberation within a scientific community? Drawing from Dutilh Novaes’ social epistemological account of argumentation, this paper highlights the challenges Longino’s (...) scientific objectivity faces on a prescriptive and descriptive level, specifically in overcoming the various epistemic injustices Longino’s proposed structural accommodations for objectivity are still sensitive to. Dutilh Novaes’ social epistemological model of argumentation illustrates how the realities of critical debate too often don’t consist of true epistemic or knowledge exchange, even though such exchanges are essential to achieve Longino’s primary goal when redefining scientific objectivity: to wield out and address idiosyncratic background assumptions and individual bigotry that possibly influence a researcher’s scientific conduct. (shrink)

The Exchange of Words, by MoranRichard. Oxford: OUP, 2018. Pp. 254.

The financial crisis of 2008–2009 presents us with the opportunity to not only understand what has happened in the markets but also to reflect on the purpose of the marketplace. Drawing from expert economic analyses, we first assess the central lesson of the crisis—the failure of self-regulation by rational self-interest to moderate externalized risk in financial markets. Second, we ask the philosophical question occasioned by the crisis concerning the moral meaning of economic activity: Is market exchange solely for the (...) sake of self-interest? Reflecting on the poetry of Kahlil Gibran and engaging with the recent encyclical of Pope Benedict XVI, we turn our attention from political economy to moral economy: the relationships among market exchange, self-interest, and the common good—and, in particular, the prior conditions of market exchange and their moral significance for the present crisis. (shrink)

With the emergence of service provisioning environments and new networking capabilities, antagonistic businesses have been able to collaborate securely by sharing information in order to have a beneficial result for all. This collaboration has sometimes been imposed by state legislation and sometimes been desirable by the firms themselves so as to resolve frequently occurring abnormalities. In any case, as information exchange takes place between antagonistic firms, security and privacy issues arise. In the context of this paper, a collaborative environment (...) has been analyzed for enterprises that set out in the banking sector. A Grid-based Anti-Money Laundering (AML) system has been developed in an effort to take advantage of the Grid infrastructure, supporting the secure and trustful exchange of information between financial institutions and ensuring the confidentiality of the data transferred and the authentication of the users to whom they are available. Special emphasis is put on security mechanisms for supporting identity and privacy management as well as in Service Level Agreements (SLA) enforcement for enabling a trust enforcement platform in a collaboration business model. (shrink)

Focusing on the analysis of Athens' relations with both Greeks and non-Greeks as recorded in extant fourth-century decrees, this paper challenges the applicability of the notion of Greek/barbarian antithesis to the interpretation of formal diplomatic exchanges between Athens and the non-Greek states. A comparison of the types of decrees and honors reveals a remarkable uniformity in the forms of Athens' foreign relations irrespective of the ethnicity of honorands. The distribution of honors among individuals and groups of recipients within single decrees (...) further demonstrates that the Athenian honorific system typically elevated individuals over communities they represented, suggesting that political differences between Athens and non-Greek states did not adversely influence the methods of exchanges between them. Apart from the provisions contained in the decrees, this paper also considers their function within the city as monuments that attest to the important place of philobarbaric discourse and practice in fourth-century Athens. (shrink)

AfterTranscritique: On Kant and Marx, Karatani Kōjin’s new bookThe Structure of World Historypresents another engagement with Marxian theory from a ‘heterodox’ standpoint. In this book, rather than viewingThe Structure of World Historyfrom the aspect of mode of production in the conventional ‘Marxist’ sense, Karatani shifts perspective to the modes of exchange. To this end, Karatani appropriates what he sees as Marx’s emphasis on ‘exchange’. In the present essay, by looking at the textual evidence, I critically evaluate whether this (...) appropriation of Marx’s theory is justified. I furthermore contend that Karatani’s reading of the concepts of value, money, capital, and surplus-value from the standpoint of ‘exchange’ arises from a grave misconstrual of Marx’s critical intent. Accordingly, Karatani neglects the critique of exploitation and the systematic production of poverty that informs the basic assumptions of Marx’s analysis of the capitalist mode of production. (shrink)

What are economic exchanges? The received view has it that exchanges are mutual transfers of goods motivated by inverse valuations thereof. As a corollary, the standard approach treats exchanges of services as a subspecies of exchanges of goods. We raise two objections against this standard approach. First, it is incomplete, as it fails to take into account, among other things, the offers and acceptances that lie at the core of even the simplest cases of exchanges. Second, it ultimately fails to (...) generalize to exchanges of services, in which neither inverse preferences nor mutual transfers hold true. We propose an alternative definition of exchanges, which treats exchanges of goods as a special case of exchanges of services and which builds in offers and acceptances. According to this theory: (i) The valuations motivating exchanges are propositional and convergent rather than objectual and inverse; (ii) All exchanges of goods involve exchanges of services/actions, but not the reverse; (iii) Offers and acceptances, together with the contractual obligations and claims they bring about, lie at the heart of all cases of exchange. (shrink)

Ian Maitland defends sweatshop labor on the grounds that “A wage or labor practice is ethically acceptable if it is freely chosen by informed workers” (he calls his view “the Classical Liberal Standard,” CLS). I present several examples of economic exchanges that are mutually beneficial and satisfy the requirements of the CLS, but, nonetheless, are morally wrong. Maitland’s arguments in defense of sweatshops are unsuccessful because they depend on the flawed “CLS.” My paper criticizes Maitland’s arguments in defense of sweatshops, (...) but I do not claim that his conclusions are false—I do not claim to have shown that the labor practices Maitland defends are morally wrong. I argue that some of the disagreements about sweatshops between Maitland and his critics depend on disagreements about the answers controversial questions in ethical theory. In the absence of definitive answers to those questions , there are no decisive arguments for or against Maitland’s view about sweatshops. (shrink)

_ The Exchange of Words: Speech, Testimony, and Intersubjectivity _ By MoranRichardOxford University Press, 2018. xvi + 234 pp.

(1994). Exchange on professionalization as marginalization: The American home economics movement and the rhetoric of legitimation. Social Epistemology: Vol. 8, No. 2, pp. 123-132.

The paper investigates exchangeability in the context of probability logic. We study generalizations of basic inference rules and inferences involving cardinalities. We compare the results with those obtained in the case in which only identical probabilities are assumed.

Based on ethnographic fieldwork with panhandlers who provide services while asking for money, informal interviews with pedestrians who have interacted with them, and formal interviews with twenty people who regularly interact with panhandlers, this article unpacks the relationship between temporality and ambiguity of meaning in exchange. In line with previous research, I find that providing a service while asking for money allows panhandlers to manage stigma by recasting their relationship with pedestrians who give as a market exchange. More (...) surprisingly, I find that this kind of recasting makes giving less compelling for the pedestrians in fleeting encounters with panhandlers: they resist service provision in fleeting encounters with panhandlers on the grounds that the exchange is experienced as a coldly rational quid pro quo. In contrast, pedestrians who have long-term relationships with panhandlers experience the interaction as a gift exchange and the service as an expression of gratitude and subservience. The development of an open-ended temporal horizon and of a cycle of exchange, I argue, allows the service and the money given to operate as boundary objects, enabling panhandlers and pedestrians to attach different meanings to the exchange of money for services. This emergent ambiguity allows them to carry out interaction and exchange successfully. Contrary to models of interaction and everyday economic transactions that frame shared definitions of the situation as necessary for successful and repeated interactions, I find that ambiguity and polysemy may be productive and sustaining in interactions between participants from distinct social worlds. (shrink)

The term “exchange paradox” refers to a situation in which it appears to be advantageous for each of two holders of an envelope containing some amount of money to always exchange his or her envelope for that of the other individual, which they know contains either half or twice their own amount. We review several versions of the problem and show that resolving the paradox depends on the specifics of the situation, which must be disambiguated, and on the (...) player's beliefs. The latter psychological variables are part and parcel of the resolution. Assuming reasonable subjective distributions, exchanging cannot always be advantageous for both players. We suggest several deep-rooted psychological reasons for the considerable difficulty people demonstrably have in dealing with this problem. Implicit widespread and compelling assumptions—that affect judgement in diverse contexts—obstruct the solution. Analysing this paradox underscores the close connection between psychology and probability theory. (shrink)

The phenomenon of exchange degeneracy of 2-particle quantum states is studied in detail within the framework of Relativistic Schrödinger Theory (RST). In conventional quantum theory this kind of degeneracy refers to the circumstance that, under neglection of the interparticle interactions, symmetric and anti-symmetric 2-particle states have identical energy eigenvalues. However the analogous effect of RST degeneracy is rather related to the emergence of two types of mixtures (positive and negative) in connection with the vanishing or non-vanishing of certain components (...) of the Hamiltonian (“exchange fields”). As a consequence, there arise two subcases of RST degeneracy: (i) mixture degeneracy through neglection of the exchange fields and (ii) exchange degeneracy through neglection of the mixture character of matter. The latter RST exchange degeneracy consists in the fact that the RST dynamics admits a certain set of pure-state solutions, as borderline case between positive and negative mixtures, and all these different solutions are generating the same physical situation, e.g., concerning mass eigenvalues and physical densities (of current and energy-momentum). The general results are exemplified by considering the 2-particle states for (scalar) Helium. Analogously as the conventional exchange degeneracy is broken (ortho- and para-Helium) by taking into account the interparticle interactions (e.g., Coulomb forces), the RST degeneracy is broken by simultaneously taking into account the mixture character of matter together with non-zero exchange fields. (shrink)