Pollution, higher traffic noise, or a poisoned river are all examples of externalities---costs which are imposed by an action but which are not built in to the price of that action. One of the problems of economic theory is whether, when analysing the desirability of a new road, for example, the costs that occur as externalities can be fully incorporated into the price of that road. Dr Andreas Papandreou has provided a book which fully explains and analyses the ideas (...) lying behind the theory of externalities. Papandreou has made a survey of the various methodological approaches taken by economists to the issue of eternalities, and the failure of some markets to reconcile individual and social costs and benefits. He tackles the difficult issue of defining or characterizing externalities, surveys the current literature, and investigates the effect that externality theory has had on major economic issues. His major theme is an exploration of institutional inefficiency and the implications of incorporating organizational costs into economic models. Written in a non-technical style, this book is suitable not only for those economists who make a study of externalities, but for those who need to understand the theory for their own fields of research, and for postgraduate students. (shrink)

Economic theory has generally acknowledged the role that institutions have in shaping economic space. The distinction, however, between physical and institutional descriptions of economic activity has not received adequate attention within the mainstream paradigm. In this paper I show how a proper distinction between the physical and institutional space in economic models will help clarify the concept of externality and provide a better interpretation of the relationship between externality and nonconvexity. I argue that within the Arrow-Debreu framework externality should be (...) viewed as incongruence between the physical and institutional descriptions of the economic space. I also argue that, contrary to conventional wisdom, detrimental externality has no special association with nonconvexity. Starrett's (1972) fundamental nonconvexity has to do with the specific institutional structure of Arrow markets rather than the detrimental nature of externality. Indeed, Arrow markets may not eliminate externalities. In a similar vein, it is not detrimental externality, however intense, that causes the production possibility set to become nonconvex, as argued by Baumol and Bradford (1972), but the particular interpretation of intensity that would make even conventional production possibility sets nonconvex. These points become apparent when one distinguishes between the convexity of the physical and institutional production sets. (shrink)

The ontology of artefacts in Byzantine philosophy is still a terra incognita. One way of mapping this unexplored territory is to delve into Michael of Ephesus’ commentary on Aristotle’s Metaphysics. Written around 1100, this commentary provides a detailed interpretation of the most important source for Aristotle’s ontological account of artefacts. By highlighting Michael’s main metaphysical tenets and his interpretation of key-passages of the Aristotelian work, this study aims to reconstruct Michael’s ontology of artefacts and present it as one instance, which (...) is perhaps exemplary, of the Byzantine ontology of artefacts. In particular, the study shows that this commentary holds a definite position on the nature of artefacts, according to which they are neither substances nor hylomorphic compounds. Indeed, artefacts lack a form altogether and their forms exist only in thought. As a result, Michael’s commentary provides an ontological interpretation of artefacts as accidental beings, i.e., as matter which acquires a mere property as opposed to a substantial form. While such an interpretation shows originality when compared to the Aristotelian text, it also indicates adherence to the reading established by Alexander of Aphrodisias, despite important departures concerning the status of natural forms. (shrink)

In Metaphysics Z 8 Aristotle offers an infinite regress argument to deny that forms come to be. Briefly put, the argument states that, if we assume that every time an x composed of matter (m1) and form (f1) comes to be, f1 also comes to be, then there would be infinitely many xs coming to be – for f1 would itself be a compound, if it comes to be, and the same reasoning would in turn apply to it. This argument (...) has great significance in the history of philosophy, for some later thinkers take Aristotle to allow or make room for the creation ex nihilo of forms. However, the only direct Greek engagement with this argument in its proper context is provided by Asclepius of Tralles’ commentary on Book Z. A close study of Asclepius’ interpretation shows that he endorsed the argument on the tacit condition that it refers to the forms αὐτὰ καθ’ αὑτά as different from both Platonic Ideas and enmattered forms. At the same time, however, its elaboration includes alongside forms αὐτὰ καθ’ αὑτά also eternal separate forms and generated forms. His reconstruction also displays a sophisticated toning-down of the potential disagreements between Plato and Aristotle on the conception of pre-existing form which is assumed in the argument. Asclepius’ interpretation offers yet further proof of the commentators’ camouflaged and stratified way of tackling philosophical issues of paramount importance. (shrink)

Despite an infelicitous tradition downgrading their status, technical artefacts are increasingly acquiring their place in contemporary ontology. However, although most metaphysicians currently allow for an ontological consideration of artefacts, they define the class of artefacts differently and disagree on the essence of artificial objects. In this paper, I present a handful of recent accounts of artefacts, with particular regards to the hylomorphic framework. I make an attempt at reconstructing the debate on the spectrum of artefacts and the ways in which (...) artefacts’ essences are singled out. Moreover, I indicate special cases, such as ready-mades and malfunctioning objects, which seem to constitute a threat for the presented accounts. Thereafter, I propose that Aristotle’s account of artefacts embraces the challenges of the contemporary debate. I also attempt to demonstrate that his theory of artefacts escapes the abovementioned threats. While unfolding Aristotle’s conceptual tools against such threats, I present his account of artefacts as hylomorphic and, hence, essentialist. (shrink)

This paper discusses the metaphysical status of artefacts and their forms in the ancient commentators on Aristotle’s Metaphysics. Specifically, it examines the Peripatetic tradition and Alexander of Aphrodisias to then turn to the commentaries of the late Neoplatonist Asclepius of Tralles, and the Byzantine commentator Michael of Ephesus. It argues that Alexander is the pioneer of the interpretation of artefactual forms as qualities and artefacts as accidental beings. The fortune of this solution goes through Asclepius and Michael to influence Thomas (...) Aquinas. (shrink)

The way metaphysicians conceive of inadvertently made objects has consequences for their understanding of the relation between intentions and kinds. Indeed, the very possibility of concrete material objects produced without human intention shakes the common identification of an object’s kind and the intentions of the maker. The disruptive potential of inadvertently made objects also affects historians of philosophy, who have often failed to engage with the issue. In this paper, I shall reconstruct Aristotle’s account of inadvertently made objects and the (...) fortune of his examples. I will argue that Aristotle opens a conceptual space for inadvertent objects and will indicate the consequences for the relation between the intentions of the maker and an object’s essence. Furthermore, I will put Aristotle into conversation with modern accounts and show the extent to which Aristotelian inadvertent objects constitute an instance different from the currently debated cases of appropriation, residues and by-products. (shrink)

It is commonly believed that Aristotle merely uses artefacts as examples or analogical cases. This book, however, shows that Aristotle gives a specific, coherent account of artefacts that in various ways owes much to Plato. Moreover, it proposes a new, definitive solution to the problem of artefacts' substantiality, which comprises two controversial positions: (i) that Aristotle holds a binary view of substantiality according to which artefacts are not substances at all; (ii) that artefacts fail to be substances because they exhibit (...) less of a unity than natural wholes. Finally, responding to the contemporary debate on ordinary objects, the book identifies the main propositions for an ontology of artefacts that aspires to use Aristotle as its authority and can serve as a guideline for current metaphysical discussions. (shrink)

This article examines the relation between shame and the notion of the noble starting from Alexander’s Ethical Problems. Problem 21 is prompted by the Aristotelian discussion of the concept of shame. NE 2.7 1108a30–35 and NE 4.9 1128b15–21 present an apparent contradiction that Alexander aspires to solve: in the former passage, Aristotle states that shame is virtue-like in being praiseworthy; in the latter, shame’s praiseworthiness is restricted to young people. Alexander solves this contradiction by rejecting the second passage: shame is (...) not an emotion and its praiseworthiness applies to virtuous adults in particular. This article claims that, although Alexander rightly relates shame to the knowledge of the noble, neither of the Aristotelian passages must be rejected. The emotional status of shame is exhibited by Aristotle’s definition of shame as fear of disrepute. However, by considering shame and fear as ethical motivations, particularly in the case of courageous citizens and learners, the article shows that shame, unlike fear, implies knowledge of as well as sensitivity towards the noble. Moreover, the restriction of shame’s praiseworthiness to young people is defended by showing that shame is the best option in the absence of virtue. By contrast, the fully virtuous adult, i.e. the phronimos, is not supposed to feel shame. Neither does the phronimos act out of shame, nor does he feel prospective or retrospective shame. (shrink)

Introduction: Globally, vitamin D deficiency is one of the most common deficiencies, affecting nearly half the world's population. The objective of this survey was to assess and compare the knowledge about vitamin D and the perceived state of health in Emirati and international tourist female students in Dubai, UAE. Methods: This is a cross-sectional study that took place in universities in Dubai, UAE. This survey consisted of 17 multiple choice questions. The first part of the survey assessed levels of supplementation, (...) diet and UV exposure. Another section evaluated the participants’ self-assessed state of health regarding vitamin D testing, symptoms related to vitamin D deficiency and general welbeing. The collected data were statistically analyzed using SPSS statistics for windows version 26.0 (SPSS Inc., Chicago, IL). Statistical significance was set at P<0.05. Results: 105 respondents were Emiratis and 65 were international students. The average age was 21, with an average BMI 23.3. Almost one-third of each group reported using Vitamin D supplements once weekly. The majority of both groups reported rarely getting tanned. Almost all participants reported regular consumption of Vitamin-D rich foods. In both groups, more than half reported consuming milk and cheese regularly and up to one-third reported consuming fish in a regular manner. Although more than half of the students rated their health as good; more than two-thirds reported experiencing muscle pain; only half reported having their blood Vitamin D levels measured once; half reported experiencing problems with concentration and more than three-quarters reported experiencing bad mood in the past month. The prevalence of these symptoms was almost similar across different categories of vitamin D supplementation, tanning habits, dietary intake, or nationality. No statistically significant differences were noted between the 2 groups. Conclusion: more Emirati students were aware of the association between vitamin D and osteoporosis than International tourist students (40% vs. 21.9%, respectively; p<0.05). On the other hand, both groups had lower knowledge about the relationship between vitamin D deficiency and depression, Rheumatoid Arthritis and Hypertension, and the optimal vitamin D level; however, no statistically significant differences were noted regarding this knowledge of Emiratis and international students. (shrink)

John Damascene, one of the most productive Greek theologians of the Middle Byzantine era, also composed a treatise on the Trisagion hymn, or how it should be sung correctly and why; a text that has been little discussed in contemporary scholarship. The present paper provides an overview of the work – with special reference to the notion of identity in John’s description of the Trinitarian doctrine. It also examines the treatise especially in the context of anti-heretical polemics. The author argues (...) that John’s approach to the question of the correct way of singing the hymn is gentle: instead of using pejorative language, he even praises the object of his reproach. (shrink)

The European Union ambassadors revenue are lost to fraud and crime,” the of the Council of Minister, Mr. in BiH follow very closely develrelease read. Papandreou, and Mr. Solana, urged the opments as regards the issue of “We also have in mind the positive effect authorities of BiH recently to reach a the adoption, at a state level of single..

While not a coherent body of thought, the socialist ideology of the Panhellenic Socialist Movement (PASOK) and its leader, Andreas Papandreou, diverges from the socialist principles of post-World War II social democratic parties of Western Europe. The latter spoke for the working class in advanced industrialized societies. These social democrats accepted the legitimacy of capitalism and, assuming continued economic growth, advocated reformist policies. Such programs were meant to strengthen the welfare state and bring about a more equitable distribution of (...) income. As social democracy began to falter, its Keynesian theoretical presuppositions became transparently inadequate. Social democracy's ideological moorings were adrift, while its policies became barely distinguishable from those of its conservative political opponents. (shrink)