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Pseudoproduction, Pseudocost and Profit Functions in Monopoly from the Dual Perspective

100%
Vrankić I., Krpan M.
Business Systems Research Journal
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2016
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vol. 7
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issue 2
49-64
EN
Background: Duality in the microeconomic theory enables us to represent consumers’ preferences and production technology with various dual functions satisfying certain regularity conditions. Objectives: Since the basis for the application of duality in the microeconomic theory is the price taking behaviour, this paper takes the challenge of applying principles of duality to a monopolistic case where a single producer has an influence on the price which it charges for its product. Methods/Approach: The standard approach of deriving the profit function for the monopolist from the production function and the defined pseudoproduction function is accompanied by an alternative approach in which the starting point is the pseudocost function. Starting from the derived profit function, the pseudoproduction function and the pseudocost functions are recovered and a version of Hotelling’s lemma is given. Results: The structure of the profit maximization problem in a monopolistic case was made similar to the structure of the profit maximization problem in the perfectly competitive case and it is shown that all starting functions can be recovered back from derived functions. A version of Hotelling’s lemma is illustrated, which brings us indirectly from the profit function to the supply function. Conclusions: By introducing the pseudoproduction function in the profit maximization model of a monopolist, the structure of the problem becomes similar to the perfectly competitive case and duality results can be applied. The profit function is derived from the pseudoproduction and the pseudocost function, and all starting functions are recovered back from the derived profit function.
2

IMPORTOWANE NACZYNIA SZKLANE W CHINACH W I TYSIĄCLECIU N.E.

84%
Żuchowska M.
Archeologia Polski
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2016
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vol. 61
77-112
EN
Although glass was manufactured in China as early as 2nd half of the 1st millennium BC and the locally developed technologies allowed the production of both opaque glass, resembling nephrite, and translucent glass, still the multicolor, made of translucent glass vessels originating from Mediterranean and Iranian workshops were highly valued among the Chinese elites, especially in the 1st half of the 1st millennium A.D. The Author discusses the finds of imported glass vessels on China territory in the context of the local glass production development, as well as problems related to glass distribution, its function and value.
3
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Główne typy metafizyki analitycznej

59%
Szubka T.
Filo-Sofija
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2011
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vol. 11
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issue 4(15)
849-864
EN
In a widespread general view about analytic philosophy it is often emphasized the supposed animosity or mistrust of that movement towards metaphysics. That opinion is in many respects one-sided and incorrect. First, one cannot find that animosity towards metaphysics in the works of G.E. Moore and B. Russell, the founders of modern analytic philosophy. Of course, they criticized the speculative, Hegelian metaphysics of their idealistic predecessors, but they did it in order to defend metaphysics of a different kind, more careful, empirical, and realist one. Moreover, even if it is to some extent true that over a few decades analytic philosophy was dominated by the attitude of mistrust towards more theoretical and comprehensive metaphysical investigations, it should be stressed that that attitude has almost completely disappeared in the last fifty years. Metaphysics has again regained the status of central and vigorously pursued philosophical discipline. One of the main originators of that metaphysical turn in contemporary analytic philosophy was Sir P.F. Strawson, the Oxford philosopher, who in 1959 forcefully articulated the idea of descriptive metaphysics. A somewhat similar way of doing metaphysics was later developed in the writings of D. Davidson, M. Dummett, and – in certain respects – H. Putnam. One may say that all those thinkers have attempted to identify the basic structure of reality by describing and elucidating the basic structural features of our thought and talk. Since in such a method of doing metaphysics one can discern some characteristic marks of Kantian transcendental arguments, there is a point to call it analytic-transcendental metaphysics. In a completely different way metaphysics has been pursued by those analytic thinkers who are under heavy influence of the conception of philosophy put forward by W.V. Quine. For Quine philosophy, including metaphysics, is continuous with science, and, to be more precise, constitutes the theoretical end of science. Among many followers of that kind of metaphysics, that may be called analytic-naturalistic one, there are D.M. Armstrong and D. Lewis. The paper presents those two varieties of analytic metaphysics, and succinctly discusses their main difficulties. Subsequently, it mentions those examples of contemporary analytic metaphysics that, for one reason or another, do not belong to either of those two varieties. The paper ends with a brief appendix discussing the most recent revival of metaphysics within the analytic movement and a critical response toit from the deflationary point of view.
4
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Analityczna epistemologia religii ostatnich pięciu dekad

51%
Pepliński M.
Filo-Sofija
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2011
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vol. 11
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issue 4(15)
919-938
EN
There are three chief aims of the paper. First, it presents in short the beginning of the analytic philosophy of religion, its development, issues, and methods. Second, it puts forward a hypothesis that in the last five decades analytic philosophy of religion has been dominated by the epistemological paradigm, i.e. in most cases, any problem in question has been studied as part of the general problem of rationality of religious belief. That situation is changing slowly towards achieving more balance between the issues of epistemology of religion and those concerned with philosophical theology. Third, the paper provides criteria for the classification of the different ways to understand the rationality of religious belief: the rationalistic and evidentialist approach, the natural theology approach, the Wittgensteinian fideism and Reformed epistemology approaches. A brief description of each of those four positions in epistemology of religion is included.
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