We survey the literature that has explored the implications of decision-making under ambiguity for financial market outcomes, such as portfolio choice and equilibrium asset prices. This ambiguity literature has led to a number of significant advances in our ability to rationalize empirical features of asset returns and portfolio decisions, such as the failure of the two-fund separation theorem in portfolio decisions, the modest exposure to risky securities observed for a majority of investors, the home equity preference in international portfolio diversification, (...) the excess volatility of asset returns, the equity premium and the risk-free rate puzzles, and the occurrence of trading break-downs. (shrink)

Lettura prospettica di un caposaldo del pensiero hobbesiano: il sorgere del rapporto tra l'uomo ed il potere, tra la naturale condizione umana e la nozione di civiltà, attraverso due frammenti particolarmente rappresentativi della concezione hobbesiana del passaggio dallo stato di natura alla civiltà: il tredicesimo capitolo del Leviathan, sulla condizione naturale dell'uomo, ed il quinto capitolo, sulle cause ed origini della civitas, del De cive, giacché la mera esistenza dell'uomo ed il suo riconoscimento di una legge naturale, a giudizio di (...) Hobbes, non implica affatto necessariamente una qualsiasi forma consolidata di organizzazione sociale. Sebbene il De cive (pubblicato in latino nel 1642 e, in inglese, nel 1651) preceda cronologicamente il Leviathan (pubblicato, viceversa, dapprima in inglese, nel 1651, poi in latino, nel 1668), nell'ordine logico dell'esposizione qui presentata, il brano del Leviathan può essere considerato propedeutico al quinto capitolo del De cive, delineandone i presupposti, segnatamente la condizione di continuo pericolo per tutti causata dallo stato generale di reciproca guerra, che costituisce forse l'aspetto più noto (e frainteso) del pensiero hobbesiano. Per una migliore comprensione dei testi e delle differenti (spesso opposte) interpretazioni cui hanno dato vita, si è ritenuto di proporre, per quanto concerne i brani di Hobbes, tanto la loro traduzione in lingua italiana quanto le stesure originali in latino e inglese, presentate con i testi a fronte; tale scelta fornisce l'opportunità di osservare l'accurata scelta di alcuni dei vocaboli chiave della filosofia di Hobbes, la cui trasposizione da una lingua all'altra è stata spesso causa di fraintendimenti o volgarizzazioni in tutto o in parte ingiustificate. Allo scopo di offrire una più completa prospettiva del pensiero hobbesiano delineato nei brani selezionati, si è ritenuto di affiancare ad essi dei frammenti di interpreti novecenteschi (con delle sintetiche schede bio-bibliografiche) di alcuni concetti formulati da Hobbes e, segnatamente, di F. Tönnies, M. Horkheimer, L. Strauss, C. Schmitt, T. Parsons, N. Bobbio, H. Warrender. (shrink)

Cooperatives are facing the challenge to be competitive in the market, without losing their traditional values of mutuality and democracy. To do that, they need to re-construct open and participative dialogue with their employees and members based on more democratic forms of communication and engagement. From this point of view, the measurement and communication of sustainability aspects may allow a dialogue to be mobilized with shareholders and stakeholders without losing the attention on competitive factors. Based on these premises, the article (...) analyses the experience of a 5-year action research project , carried out within Unicoop Tirreno, an Italian consumers' cooperative, and aimed to implement different tools for sustainability accounting and to embrace a more open dialogue with stakeholders, in particular with employees and members. In this process of change, the tools implemented for sustainability accounting played a key role in supporting the cooperative to reinterpret its own values and in stimulating a new and participative management approach. The results indicate a virtuous circle between the management and measurement of cooperative principles and the management and measurement of sustainability issues. (shrink)

Giornalista, critico letterario, romanziere e saggista, Maurice Blanchot ha il merito di aver costantemente interrogato il confine incerto tra la parola filosofica e quella della finzione. Lungi dal voler dar peso alle eventuali incoerenze tra i testi e la biografia dell’autore, ci si propone qui di indicare nell’instancabile analisi del nesso tra la propria attività di scrittura e il senso della partecipazione politica, l’angolatura più efficace da cui cogliere la narrazione, teorizzazione e messa in pratica di un’autentica dissoluzione del soggetto.

Written between 1978 and 2006, these essays engagingly address the most hidden tradition in European political thought: the unpolitical.

Frailty is an age-related dynamic status, characterised by a reduced resistance to stressors due to the cumulative decline of multiple physiological systems. Several researches have highlighted a relationship between physical frailty and cognitive decline; however, the role of specific cognitive domains has not been deeply clarified yet. Current studies have hypothesised that physical frailty and neuropsychological deficits may share systemic inflammation and increased oxidative stress in different neurodegenerative disorders, such as Alzheimer’s and Parkinson’s disease. However, the role of the executive (...) dysfunction should be investigated in a more detailed way using a multidimensional approach. With this aim, we conducted a review of the literature on the few experimental articles published to discuss the existence of a relationship between frailty and cognitive impairment in neurocognitive disorders, particularly focusing on the domain of executive dysfunction. The data suggest that physical frailty and cognitive decline, especially executive dysfunction, are two aspects strongly linked in mild and major neurocognitive disorders due to Alzheimer's and Parkinson's disease. In light of this, a new framework linking ageing, cognitive decline, and neurodegenerative diseases is needed. In order to analyse the effects that ageing processes have on neural decline and neurocognitive disease, and to identify relevant groups of users and patients, future longitudinal studies should adopt a multidimensional approach, in the field of primary prevention and in the continuum from mild to major neurocognitive disorder. (shrink)

Stoicism Stoicism originated as a Hellenistic philosophy, founded in Athens by Zeno of Citium, c. 300 B.C.E. It was influenced by Socrates and the Cynics, and it engaged in vigorous debates with the Skeptics, the Academics, and the Epicureans. It moved to Rome where it flourished during the period of the Empire, … Continue reading Stoicism →.

Decision-making assisted by algorithms developed by machine learning is increasingly determining our lives. Unfortunately, full opacity about the process is the norm. Would transparency contribute to restoring accountability for such systems as is often maintained? Several objections to full transparency are examined: the loss of privacy when datasets become public, the perverse effects of disclosure of the very algorithms themselves, the potential loss of companies’ competitive edge, and the limited gains in answerability to be expected since sophisticated algorithms usually are (...) inherently opaque. It is concluded that, at least presently, full transparency for oversight bodies alone is the only feasible option; extending it to the public at large is normally not advisable. Moreover, it is argued that algorithmic decisions preferably should become more understandable; to that effect, the models of machine learning to be employed should either be interpreted ex post or be interpretable by design ex ante. (shrink)

Topics in Cognitive Science, Volume 14, Issue 1, Page 143-162, January 2022.

Philosophy has been a public endeavor since its origins in ancient Greece, India, and China. However, recent years have seen the development of a new type of public philosophy conducted by both academics and non- professionals. The new public philosophy manifests itself in a range of modalities, from the publication of magazines and books for the general public to a variety of initiatives that exploit the power and flexibility of social networks and new media. In this paper we examine the (...) phenomenon of public philosophy in its several facets, and investigate whether and in what sense it is itself a mix of philosophical practice and teaching. We conclude with a number of suggestions to academic colleagues on why and how to foster further growth of public philosophy for the benefit of society at large and of the discipline itself. (shrink)

In this paper a new trajectory-based representation to non-relativistic quantum mechanics is formulated. This is ahieved by generalizing the notion of Lagrangian path which lies at the heart of the deBroglie-Bohm “ pilot-wave” interpretation. In particular, it is shown that each LP can be replaced with a statistical ensemble formed by an infinite family of stochastic curves, referred to as generalized Lagrangian paths. This permits the introduction of a new parametric representation of the Schrödinger equation, denoted as GLP-parametrization, and of (...) the associated quantum hydrodynamic equations. The remarkable aspect of the GLP approach presented here is that it realizes at the same time also a new solution method for the N-body Schrödinger equation. As an application, Gaussian-like particular solutions for the quantum probability density function are considered, which are proved to be dynamically consistent. For them, the Schrödinger equation is reduced to a single Hamilton–Jacobi evolution equation. Particular solutions of this type are explicitly constructed, which include the case of free particles occurring in 1- or N-body quantum systems as well as the dynamics in the presence of suitable potential forces. In all these cases the initial Gaussian PDFs are shown to be free of the spreading behavior usually ascribed to quantum wave-packets, in that they exhibit the characteristic feature of remaining at all times spatially-localized. (shrink)

Part One: The problems of modern hermeneutics of the Qur'ān: 1. What is hermeneutics? -- 2. The Qur'ān as event -- 3. Tafsīr and ta'wīl -- 4. Symbolism -- 5. Being and language -- 6. Literary hermeneutics -- 7. Structure and historicity -- 8. Scientific hermeneutics -- 9. The translation of the Qur'ān as hermeneutical exercise -- 10. Hermeneutics and praxis -- Conclusion -- Part two: The Qur'ān and phenomenology: 1. Introduction -- 2. A phenomenological path in the Qur'ān -- (...) Conclusion: From hermeneutics to praxis -- Bibliography -- Index. (shrink)

The book explores three specific areas: the practice of writing with respect to orality; the interpretive modes of poetic and philosophical discourse as self ...

Sewall Wright introduced the metaphor of evolution on “adaptive landscapes” in a pair of papers published in 1931 and 1932. The metaphor has been one of the most influential in modern evolutionary biology, although recent theoretical advancements show that it is deeply flawed and may have actually created research questions that are not, in fact, fecund. In this paper I examine in detail what Wright actually said in the 1932 paper, as well as what he thought of the matter at (...) the very end of his career, in 1988. While the metaphor is flawed, some of the problems which Wright was attempting to address are still with us today, and are in the process of being reformulated as part of a forthcoming Extended Evolutionary Synthesis. (shrink)

We present an account of semantics that is not construed as a mapping of language to the world but rather as a mapping between individual meaning spaces. The meanings of linguistic entities are established via a “meeting of minds.” The concepts in the minds of communicating individuals are modeled as convex regions in conceptual spaces. We outline a mathematical framework, based on fixpoints in continuous mappings between conceptual spaces, that can be used to model such a semantics. If concepts are (...) convex, it will in general be possible for interactors to agree on joint meaning even if they start out from different representational spaces. Language is discrete, while mental representations tend to be continuous—posing a seeming paradox. We show that the convexity assumption allows us to address this problem. Using examples, we further show that our approach helps explain the semantic processes involved in the composition of expressions. (shrink)

Genes are often described by biologists using metaphors derived from computa- tional science: they are thought of as carriers of information, as being the equivalent of ‘‘blueprints’’ for the construction of organisms. Likewise, cells are often characterized as ‘‘factories’’ and organisms themselves become analogous to machines. Accordingly, when the human genome project was initially announced, the promise was that we would soon know how a human being is made, just as we know how to make airplanes and buildings. Impor- tantly, (...) modern proponents of Intelligent Design, the latest version of creationism, have exploited biologists’ use of the language of information and blueprints to make their spurious case, based on pseudoscientific concepts such as ‘‘irreducible complexity’’ and on flawed analogies between living cells and mechanical factories. However, the living organ- ism = machine analogy was criticized already by David Hume in his Dialogues Concerning Natural Religion. In line with Hume’s criticism, over the past several years a more nuanced and accurate understanding of what genes are and how they operate has emerged, ironically in part from the work of computational scientists who take biology, and in particular developmental biology, more seriously than some biologists seem to do. In this article we connect Hume’s original criticism of the living organism = machine analogy with the modern ID movement, and illustrate how the use of misleading and outdated metaphors in science can play into the hands of pseudoscientists. Thus, we argue that dropping the blueprint and similar metaphors will improve both the science of biology and its understanding by the general public. (shrink)

In this book, the contributors expand on their use of Mayes archetypal pedagogy in volume 1 to apply its principles to a wide variety of venues, purposes, and projects. Each essay explores from its own disciplinary angle the difference between what Mayes has called "educational processes" (which are those practices that take place in the dedicated space of the classroom, through the medium of the curriculum, and under the stewardship of the teacher) and "educative acts" (which are those deep transactions (...) between individuals in joint pursuit of existential truth, wherein one is alternately the teacher and student in conversation, and sometimes even communion, with one's dialogical partner"). (shrink)

A collection of five essays published previously. Partial contents.

It has been suggested that Gene Roddenberry, the creator of the original Star Trek series (TOS), more or less consciously built the equivalent of a philosophical argument in favor of Stoic philosophy by centering his story lines on the interacting and exquisitely complementary characters of Mr. Spock, Captain Kirk, and Doctor McCoy. Spock in particular was apparently purposefully meant by Roddenberry to represent Stoicism as he understood it. Modern practitioners of Stoicism, however, tend to see Spock as a “stoic” (lower-s) (...) in the vernacular sense of the term: going through life constantly sporting a stiff upper lip and suppressing his emotions. I argue in this chapter that, on the contrary, the evolution of Spock from the young officer serving on the Enterprise NCC-1701 to ambassador to the Romulans in the last movie based on TOS can be understood as the story of someone entering the path to sagehood in the Stoic sense. And yes, Stoicism definitely is about far more than stiff lips and the suppression of emotions. (shrink)