Teddy Seidenfeld – CMU An old, wise, and widely held attitude in Statistics is that modest intervention in the design of an experiment followed by simple statistical analysis may yield much more of value than using very sophisticated statistical analysis on a poorly designed existing data set.

In Rita Indiana’s novel, Tentacle, the future of the Dominic Republic is postulated as bleak and dystopian: a nuclear ecological disaster has nearly ruined the ocean, colorism and racism are pervasive, Haitians are indiscriminately executed due to an unnamed “virus” (Indiana 3), and historical class divisions, as well as wealth inequalities, are maintained. The various issues that Indiana’s future-oriented Dominican Republic is facing emerge from political contingencies: they are the result of clear choices facilitated by the political leaders of the (...) Dominican Republic. Yet, while the text renders historical reality as contingent and liable to change, it also explicitly points out the limits of individual agency and action. Tentacle demonstrates the politico-ontological dismissal of subjects that is enacted through necropolitics. The text also recognizes the contingent nature of political formation and necropolitics, and by doing so, implicitly contests the essentialization of formerly colonized countries such as the Dominican Republic. Ultimately, I argue that the precarity of the political subject and the material-political-reality are not depicted in Tentacle as necessary or inevitable parts of some dialectic process of progression, but rather as potentially preventable or intervenable processes that evade individual agency. (shrink)

We study the representation of sets of desirable gambles by sets of probability mass functions. Sets of desirable gambles are a very general uncertainty model, that may be non-Archimedean, and therefore not representable by a set of probability mass functions. Recently, Cozman (2018) has shown that imposing the additional requirement of even convexity on sets of desirable gambles guarantees that they are representable by a set of probability mass functions. Already more that 20 years earlier, Seidenfeld et al. (1995) gave (...) an axiomatisation of binary preferences—on horse lotteries, rather than on gambles—that also leads to a unique representation in terms of sets of probability mass functions. To reach this goal, they use two devices, which we will call ‘SSK–Archimedeanity’ and ‘SSK–extension’. In this paper, we will make the arguments of Seidenfeld et al. (1995) explicit in the language of gambles, and show how their ideas imply even convexity and allow for conservative reasoning with evenly convex sets of desirable gambles, by deriving an equivalence between the SSK–Archimedean natural extension, the SSK–extension, and the evenly convex natural extension. (shrink)

This paper is a two-part project. First, I reject the analogous relationship between the Holocaust and slaughterhouses (found in the anti-meat novel The Lives of Animals) and cross-species analogical thinking entirely; instead, I opt for modes of analysis that can examine the specific circumstances of animals within slaughterhouses. Secondly, I assert that a socio-economic Marxist analysis is the best prism in which to recognize the suffering of pre-slaughter animals and the causation of their suffering (the ostensibly necessary circulation and production (...) of the meat-commodity). (shrink)

In Animals, Ethics, and Us, Dr. Madeleine L.H. Campbell offers insight into the moral landscape of human-animal relations through a specific ethical framework that rejects the rights of non-human animals, opting instead for a “qualified utilitarian approach” (2019, 9). For Campbell, animal ethics should not be bound to animal rights or the autonomy of individual animals; she asserts that animal rights should not factor into the moral consideration of animals at all. Since she does not confer animals a moral status (...) or form of rights and instead relies on the utilitarian approach, Campbell attempts to locate the justifying logic of necessity (or non-necessity) in each of these issues and demonstrate how the human use of animals in a particular situation is, or is not, legitimate. There are some notable issues with this approach: Campbell’s moral framework can essentially justify anything done to animals—if it is ‘beneficial’ to humans in any capacity. In this review, I briefly summarize her argument and its applications, then delve into some criticisms of her views. (shrink)

Given the unprecedented novel nature and scale of coronavirus and the global nature of this public health crisis, which upended many public/environmental research norms almost overnight. However, with further waves of the virus expected and more pandemics anticipated. The COVID-19 pandemic of 2020 opened our eyes to the ever-changing conditions and uncertainty that exists in our world today, particularly with regards to environmental and public health practices disruption. This paper explores environmental and public health evidence-based practices toward responding to Covid-19. (...) A literature review tried to do a deep dive through the use of various search engines such as Mendeley, Research Gate, CAB Abstract, Google Scholar, Summon, PubMed, Scopus, Hinari, Dimension, OARE Abstract, SSRN, Academia search strategy toward retrieving research publications, “gray literature” as well as reports from expert working groups. To achieve enhanced population health, it is recommended to adopt widespread evidence-based strategies, particularly in this uncertain time. As only together can evidence-informed decision-making (EIDM) can become a reality which include effective policies and practices, transparency and accountability of decisions, and equity outcomes; these are all more relevant in resource-constrained contexts, such as Nigeria. Effective and ethical EIDM though requires the production as well as use of high-quality evidence that are timely, appropriate and structured. One way to do so is through co-production. Co-production (or co-creation or co-design) of environmental/public health evidence considered as a key tool for addressing complex global crises such as the high risk of severe COVID-19 in different nations. A significant evidence-based component of environmental/public health (EBEPH) consist of decisions making based on best accessible, evidence that is peer-reviewed; using data as well as systematic information systems; community engagement in policy-making; conducting sound evaluation; do a thorough program-planning frameworks; as well as disseminating what is being learned. As researchers, scientists, statisticians, journal editors, practitioners, as well as decision makers strive to improve population health, having a natural tendency toward scrutinizing the scientific literature aimed at novel research findings serving as the foundation for intervention as well as prevention programs. The main inspiration behind conducting research ought to be toward stimulating and collaborating appropriately on public/environmental health action. Hence, there is need for a “Plan B” of effective behavioral, environmental, social as well as systems interventions (BESSI) toward reducing transmission. (shrink)

The field of of imprecise probability has matured, in no small part because of Teddy Seidenfeld’s decades of original scholarship and essential contributions to building and sustaining the ISIPTA community. Although the basic idea behind imprecise probability is (at least) 150 years old, a mature mathematical theory has only taken full form in the last 30 years. Interest in imprecise probability during this period has also grown, but many of the ideas that the mature theory serves can be difficult (...) to apprehend to those new to the subject. Although these fundamental ideas are common knowledge in the ISIPTA community, they are expressed, when they are expressed at all, obliquely, over the course of years with students and colleagues. -/- A single essay cannot convey the store of common knowledge from any research community, let alone the ISIPTA community. But, this essay nevertheless is an attempt to guide those familiar with the basic Bayesian framework to appreciate some of the elegant and powerful ideas that underpin the contemporary theory of lower previsions, which is the theory that most people associate with the term ‘imprecise probabilities’. (shrink)

This essay argues that literature is neither an intrinsic good (like oxygen) nor a constructed good (like a teddy-bear) but instead a conditional good, like a blueprint. It has immense potential value, but that potential can be actualized only if readers do a certain kind of work; and readers are likely to do that work only if, as a culture, we retain an understanding of what novels and poems both need from us and can give us. This means we (...) need to be wary of theories that are excessively deflationary (all literature is mere entertainment), cynical (all literature is a vehicle for state ideology), or over-optimistic (all literature makes us more altruistic) and instead embrace a pluralism of effect. Some fictions, like The Wire, invite us to reflect on our own beliefs; some, like Plato’s dialogues, help us fine-tune our mental capacities; some, like Toni Morrison’s Song of Solomon, offer us a choice of genres; some help us feel our feelings; some offer formal models for the shape of a life. Literature can continue to matter in all of these ways—but only as long as we allow it to. (shrink)

Consider a subjective expected utility preference relation. It is usually held that the representations which this relation admits differ only in one respect, namely, the possible scales for the measurement of utility. In this paper, I discuss the fact that there are, metaphorically speaking, two additional dimensions along which infinitely many more admissible representations can be found. The first additional dimension is that of state-dependence. The second—and, in this context, much lesser-known—additional dimension is that of act-dependence. The simplest implication of (...) their usually neglected existence is that the standard axiomatizations of subjective expected utility fail to provide the measurement of subjective probability with satisfactory behavioral foundations. (shrink)

We study whether it is possible to generalise Seidenfeld et al.’s representation result for coherent choice functions in terms of sets of probability/utility pairs when we let go of Archimedeanity. We show that the convexity property is necessary but not sufficient for a choice function to be an infimum of a class of lexicographic ones. For the special case of two-dimensional option spaces, we determine the necessary and sufficient conditions by weakening the Archimedean axiom.