In this paper we show that there are "E₀ many" orbit inequivalent free actions of the free groups Fn. 2 ≤ n ≤ ∞ by measure preserving transformations on a standard Borel probability space. In particular, there are uncountably many such actions.

We investigate the mathematics of a model of the human mind which has been proposed by the psychologist Jens Mammen. Mathematical realizations of this model consists of what the first author (A.T.) has called Mammen spaces, where a Mammen space is a triple in the Baumgartner–Laver model.Finally, consequences for psychology are discussed.

The twentieth century saw a vigorous debate over the nature of rights. Will theorists argued that the function of rights is to allocate domains of freedom. Interest theorists portrayed rights as defenders of well-being. Each side declared its conceptual analysis to be closer to an ordinary understanding of what rights there are, and to an ordinary understand- ing of what rights do for rightholders. Neither side could win a decisive victory, and the debate ended in a standoff.

Assuming that every set is constructible, we find a${\text{\Pi }}_1^1 $maximal cofinitary group of permutations of$\mathbb{N}$which is indestructible by Cohen forcing. Thus we show that the existence of such groups is consistent with arbitrarily large continuum. Our method also gives a new proof, inspired by the forcing method, of Kastermans’ result that there exists a${\text{\Pi }}_1^1 $maximal cofinitary group inL.

forthcoming in Philosophy & Public Affairs [2008].

Rights dominate most modern understandings of what actions are proper and which institutions are just. Rights structure the forms of our governments, the contents of our laws, and the shape of morality as we perceive it. To accept a set of rights is to approve a distribution of freedom and authority, and so to endorse a certain view of what may, must, and must not be done.

This is a new analysis of rights, particularly of the paradigm: the claim-right. The new analysis makes better sense of rights than the leading alternatives do. The new analysis handles all of the well-known counterexamples to the Will and Interest theories; it seems not to generate counterexamples of its own; and it solves many long-standing puzzles in the theory of rights. Moreover, the central concepts of the new theory are as salient and forceful as are rights themselves.

This chapter contains section titled: Justice as Fairness Rawls and the Cosmopolitan Egalitarians The Puzzle of Rawls's Rejection of Global Egalitarianism Rawls's Fundamental Norm of Legitimacy Why Rawls is not a Cosmopolitan Why Rawls is not a Global Egalitarian The Impossibility of Pure Cosmopolitanism Conclusion Notes.

All of these claims for reparations have mobilized popular support, and all share a degree of intuitive plausibility. The challenge to the theorist is to judge whether and which of such demands are grounded in sound principles of political normativity, so as to be able to select out the valid claims and to measure how the urgency of these claims compares with other demands on the public agenda. The most basic question for those considering the justifications of reparations is how (...) to orient their theories within the space of reasons. Do valid claims for reparation rest at the deepest level on reasons we have for redressing a past injustice? Or do they rather rest on reasons we have to improve our current relations so that we can get along better in the future? Are valid reparative demands backward- or forward-looking? (shrink)

justice as fairness envisions a society of free citizens holding equal basic rights cooperating within an egalitarian economic system. His account of political liberalism addresses the legitimate use of political power in a democracy, aiming to show how enduring unity may be achieved despite the diversity of worldviews that free institutions allow. His writings on the law of peoples extend these theories to liberal foreign policy, with the goal of imagining how a peaceful and tolerant international order might be possible.

Although Professor Lewin is not testing existing views that, for people in politics, 'egoism rules' on deep theoretical grounds, he strongly argues that empirical facts do not support such views and thus opens a new chapter in the debate on ...

What morality requires of us in a world of poverty and inequality depends both on what our duties are in the abstract, and on what we can do to help. T.M. Scanlon's contractualism addresses the first question. I suggest that contractualism isolates the moral factors that frame our deliberations about the extent of our obligations in situations of need. To this extent, contractualism clarifies our common-sense understanding of our duties to distant others. The second, empirical question then becomes vital. What (...) we as individuals need to know is how to fulfil our duties to the distant poor. Moral theorists tend to base their prescriptions on simple assumptions about how the rich can help the poor. Yet a survey of the empirical literature shows how urgently we need more information on this topic before we can know what contractualist morality — or any plausible morality — requires of us. Key Words: Scanlon • contractualism • global justice • global poverty • aid effectiveness. (shrink)

Leif Wenar examines the impact on takings scholarship of the redefinition of "property" early in the twentieth century. He argues that the Hohfeldian characterization of property as rights (instead of as tangible things) forced major scholars such as Michelman, Sax, and Epstein into extreme interpretations of the Takings Clause. This extremism is unnecessary, however, since the original objections to the idea that "property is things" are mistaken.

This article evaluates what Scanlon has written on contractualism from the perspective of the theory of rights. It asks: where are the rights within contractualism? And: where is contractualism within the space of rights? Scanlon’s discussions and omissions show the urgency of aligning contractualism with an adequate analysis of rights. Topics include what rights are, how to tell who has them, and the importance of thinking about the power to change them.

Concerns over aid effectiveness have led to calls for greater accountability in international development aid. This article examines the state of accountability within and between international development agencies: aid NGOs, international financial institutions, and government aid ministries.

We prove that if V = L then there is a $\Pi _{1}^{1}$ maximal orthogonal (i.e., mutually singular) set of measures on Cantor space. This provides a natural counterpoint to the well-known theorem of Preiss and Rataj [16] that no analytic set of measures can be maximal orthogonal.

We announce some new results regarding the classification problem for separable von Neumann algebras. Our results are obtained by applying the notion of Borel reducibility and Hjorth's theory of turbulence to the isomorphism relation for separable von Neumann algebras.

This article argues that the algorithms known as neural nets underlie a new form of artificial intelligence that we call indexical AI. Contrasting with the once dominant symbolic AI, large-scale learning systems have become a semiotic infrastructure underlying global capitalism. Their achievements are based on a digital version of the sign-function index, which points rather than describes. As these algorithms spread to parse the increasingly heavy data volumes on platforms, it becomes harder to remain skeptical of their results. We call (...) social faith in these systems the naive iconic interpretation of AI and position their indexical function between heuristic symbol use and real intelligence, opening the black box to reveal semiotic function. (shrink)

Philosophy &Public Affairs, Volume 51, Issue 3, Page 195-233, Summer 2023.

The resource curse impedes core interests of importing states, while the policies of these states drive the resource curse. These policies violate importing states' existing international commitments.

Recent research suggests that many microfinance institutions increasingly focus on financial performance at the expense of the social component of their dual objectives. Existing studies typically assume that capital providers and managers mainly drive this so-called mission drift. In this study, we investigate whether ‘personal mission drift’ at the credit officer level can further explain the reduced emphasis on poorer clients among microfinance institutions. We present both qualitative and quantitative evidence that more experienced credit officers tend to serve fewer vulnerable (...) clients. Specifically, we show that all else being equal, credit officer experience is negatively correlated with the provision of small loans, loans to young clients, and loans to clients with disabilities. Our qualitative analysis suggests that perceived client risk and preferences for increased time efficiency mainly drive more experienced credit officers’ relative neglect of more vulnerable clients. This drift appears to be reinforced by the industry’s incentive schemes. Therefore, credit officer incentives and training should be designed to prevent this mission drift, which is observed at the microfinance institution level but is actually initiated at the credit officer level. (shrink)

This article examines Rawls's and Scanlon's surprisingly undemanding contractualist accounts of global moral principles. Scanlon's Principle of Rescue requires too little of the world's rich unless the causal links between them and the poor are unreliable. Rawls's principle of legitimacy leads him to theorize in terms of a law of peoples instead of persons, and his conception of a people leads him to spurn global distributive equality. Rawls's approach has advantages over the cosmopolitan egalitarianism of Beitz and Pogge. But it (...) cannot generate principles to regulate the entire global economic order. The article proposes a new cosmopolitan economic original position argument to make up for this lack in Rawls's Law of Peoples. (shrink)

This article presents a unifying interpretation of Rawls’s major works. The interpretation emphasizes the parallels in Rawls’s theories of justice and legitimacy for domestic and global institutions.

Beyond Blood Oil expands on the themes and proposals laid out in Leif Wenar’s previous book and engages a distinguished group of scholars to explore philosophical arguments, assessing the prospects of his practical policy proposal. The book addresses how oil resources can undermine democracy and discusses moral obligations of those who consume oil.

A Northern Ireland politician declared not long ago that the British people had a right not to believe the IRA’s latest statement on disarmament. Therefore, he said, the British government had no right to allow the IRA further representation at the talks. Rights assertions like these are quite common in everyday talk, even if pronouncements linking epistemic and legal rights are less so.

Entrepreneurial agency—the individual power to change environments—is central to entrepreneurship research. Yet, from a social inequality perspective, beliefs in an entrepreneurial agency might differ based on the social class environments individuals are born into. Drawing on social cognitive theories, our findings across three data sets among students from Germany and entrepreneurs from the United States indicate that social class origins are associated with entrepreneurial self-efficacy (ESE) beliefs in adulthood. Exploring the underlying mechanisms, we find that students’ early entrepreneurial experiences in (...) education and practice are indicative of reproducing the class gap in ESE. When individuals collect mastery experiences such as social mobility or entrepreneurial success, their lower social class origins turn out to be associated with enhanced entrepreneurial agency beliefs. We discuss the implications for further research on social class, inequality, and entrepreneurship. (shrink)

(1996). Seyyed Hossein Nasr and Ziauddin Sardar on Islam and science: Marginalization or modernization of a religious tradition. Social Epistemology: Vol. 10, Islamic Social Epistemology, pp. 273-287.

Much fuss has been made of the “spatial turn” in recent years, across a range of disciplines. It is hard to know if the attention has been warranted. A confusion of terms has been used—such as space, place, spatiality, location—and each has signified a cluster of often contradictory and confusing meanings. This phenomenon is common to a range of disciplines in the humanities. This means, first, that it is not always easy to recognize what is being discussed under the rubric (...) of space, and second, that over-extended uses of the cultural turn have stymied meaningful engagement with materiality in discussions of space. This article shows how materiality has been marginalized both by a casual vocabulary and a vigorous a priori epistemological holism on the part of scholars, and how the spatial turn has been too closely linked to the cultural turn to allow it to develop its fullest explanatory potential. It demonstrates how historians might profitably theorize the significance of place and space in their work , and sets out some challenges for using space more effectively in explanatory systems. Inspired by environmental history, sociology, and science and technology studies, I propose a way of establishing space as different from conventional historical handling of materiality, and end by identifying some methodological problems that need to be solved if we are to proceed on a surer footing. (shrink)

Social enterprises in the microfinance industry need to adhere to both financial and social demands. Critics argue that there is a mission drift away from the social mission, and this has motivated the introduction of social rating agencies to strengthen the business ethics of microfinance institutions. Using a global dataset of 204 socially rated MFIs from 58 countries, we assess the factors that drive the social performance ratings of MFIs. Overall our results show that social ratings of MFIs are significantly (...) related to financial performance, greater outreach especially in rural areas, well-defined social objectives, staff commitment, service quality and an enhanced customer service. We observe that various rating agencies attach different importance to each of the social indicators. The public policy implication is that social rating agencies need to become more transparent, to reduce the information asymmetries between heterogenous socially motivated investors and the focal MFI. (shrink)

Digitalization is often associated with optimistic grand narratives about a future society in academic discourse. While the word is frequently linked with hopes and expectations of societal rebirth and beneficial changes for societies and organizations, there has been little attention given to systematically investigating the risks associated with digitalization. This paper aims to investigate the relationship between digitalization and risk, thereby characterizing “the digital risk society.” By conducting a narrative summary and thematic analysis of 34 academic papers three aggregated themes (...) were outlined: First, in the digital risk society, intangible technologies serve as solutions while simultaneously introducing new risks. Second, as an increasing number of tasks are delegated to machines with opaque inner functions, society is suffering from dehumanization. Third, scholars are calling for new approaches to govern these technologies, spurred by concerns over their potentially harmful use. (shrink)

The renormalization group has been characterized as merely a coarse-graining procedure that does not illuminate the microscopic content of quantum field theory, but merely gets us from that content, as given by axiomatic QFT, to macroscopic predictions. I argue that in the constructive field theory tradition, RG techniques do illuminate the microscopic dynamics of a QFT, which are not automatically given by axiomatic QFT. RG techniques in constructive field theory are also rigorous, so one cannot object to their foundational import (...) on grounds of lack of rigor. (shrink)