Ograniczanie wyników
Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 201

Liczba wyników na stronie
first rewind previous Strona / 11 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  Mathematical economics
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 11 next fast forward last
We provide an alternative proof of the strong duality theorem whose main basis is the proposition which says that every canonical linear programming minimization problem whose image under its objective function of the set of feasible solutions is non-empty and bounded below has an optimal solution. Unlike earlier proofs, this proof uses neither the simplex method nor Farkas's lemma. We also use this proposition to obtain an independent proof of Farkas's lemma.(original abstract)
W pracy zbadano własności ekstremalne odwzorowania nazwanego funkcją lokalizacyjną z kryterium czasowym.
Autor pokazuje, że uniwersalną preferencją w zbiorach skończonych jest realacja podzielności w pierścieniu liczb algebraicznych całkowitych. Ponieważ ekonomia bada relacje preferencji, więc wynik tej pracy można odczytać jako ekonomiczną interpretację relacji podzielności.
4
Content available remote Continuous-Logical Methods in Mathematical Economics
80%
An application of continuous logic for the mathematical description of economical systems is given. Parallel, sequential, parallel-sequential and sequential-parallel systems are calculated using continuous logic (CL) methods. (original abstract)
W artykule analizowany jest model, w którym nakłady pracy występują w sposób jawny, choć nie rosną w stałym tempie. Scharakteryzowano przekształcenie technologiczne za pomocą dwóch liczb, opisujących możliwości produkcyjne gospodarki w długim okresie. Ponadto wskazano zbiory (zależne od wcześniej wymienionych liczb), do których zbieżne są wszystkie procesy wzrostu niezależnie od stanu początkowego oraz oceniono tempo/czas dojścia do otoczeń tych zbiorów. (fragment tekstu)
Omówiono zagadnienie wykorzystywania: trójwymiarowych trajektorii, trajektorii wirowo-spiralnych, stożków równowagi i wirów równowagi okręgami do opisywania zjawisk w ekonomii.
Celem pracy jest krytyczna analiza dowodu istnienia kapitału intelektualnego. Dla jego realizacji krytycznie omówimy tytułowe i kluczowe dla tematu kategorie dowodu, istnienia, energii i kapitału. (fragment tekstu)
The method of least squares is extended to accommodate a class of loss functions specified in the form of function tables. The function tables are embedded into the standard quadratic loss function so that nonlinear least squares algorithms can be adopted for loss minimization. This is an alternative to a more straightforward approach which interpolates the function tables and minimizes the resulting loss function by some generic optimization algorithm. The alternative approach has advantages over the straightforward, such as the wider availability of the least squares programs compared to the generic optimization programs and reduction in computational complexity. Examples are given for its application to multiplicative utility function maximization problems. (original abstract)
9
Content available remote Free Meixner Distributions
80%
In this paper the most important distributions in free probability (and maybe in the universe) will be presented. It is worth emphasizing that these distributions are not known among economists.(original abstract)
Praca jest poświęcona analizie i porównaniu za pomocą metod ekonomii matematycznej najbardziej znanych, makroekonomicznych modeli gospodarki z niedoborem, modelu Kornaia-Weibulla i modelu gospodarki racjonowanej poprzez kolejki. W niniejszej pracy skoncentrowano się na matecznych ujęciu gospodarki z niedoborem w tym sensie, w jakim rozumiał to Kornai, tzn., będziemy się posługiwać modelami zbudowanymi za pomocą metod ekonomii matematycznej. (fragment tekstu)
In this paper the modification of a two-level multigrid method by allowing an overlap between adjacent subdomains and its application to a one-dimensional Black-Scholes equation is described. The method is based on the finite-difference schema known as implicit Euler. Numerical experi10 ments confirm the superiority of the proposed method in relation to the clas11 sic multigrid method in form of shortening computation time, memory sav12 ings and ease of parallelization. The comparison shows the advantages of overlapping grids vs method without them, mainly due to improved accu14 racy of the solution.(original abstract)
The methods of the design of experiments are one of tools which are used in statistical quality control. The application of the design of experiments in the projection or modification of the manufacturing process leads to the improvement of the technological parameters and to reducing the overall costs of the process. Among the designs of experiments it is possible to indicate the classic and factorial designs of experiments. Nowadays the theory of the design of experiments applies in natural science and in the analysis of the spatial data. Microeconometrics is the part of econometrics which was developed in the 1950s. Microeconometric research deals with the analysis of individual data called microdata, which are increasingly used in research in the fields of economics, management and finance. The aim of this paper is to present the possibility of using the theory of experimental design in the analysis of the individual data. The proposed method will be presented for a selected set of individual data.(original abstract)
This paper presents analyses of the fictitious forces which are appearing where the frame of reference is moving simultaneously on the linear and rotational path. Finally, it gives a concept of the construction of a power plant. The power plant used the energy which derived from the rotation of the Earth.(original abstract)
The aim of the paper is to obtain an objective opinion from the experts. Experts are evaluated on the basis of the accordance of their preferences with the total preferences. The inversion distribution was applied. This distribution is associated with inversions occurring in the tau-Kendall test. The probabilities obtained as a result of estimation are needed to construct the estimator of demand.(original abstract)
In the author's earlier papers concerning asymptotic characteristics of the optimal growth processes in non-stationary Gale economies with multilane production turnpikes, it is assumed that production technology used in time period 𝑡 may also be used in the next period. Such an assumption, relevant for short periods, is difficult to justify in the longer term. The paper contains a proof of the so called 'weak' effect of the multilane turnpike in a non-stationary Gale economy with changing technology, where this assumption has been suspended. (original abstract)
Autorzy rozważają podział dowolnej kwoty pieniędzy, dla uproszczenia przyjmując ją za jednostkową. (fragment tekstu)
This study proves that if the production system P'is an expansion of the cumulative system P and if, in addition, this extension is innovative on a micro scale, then it becomes an equally forceful innovative expansion upon a macro scale. (original abstract)
Here we prove the goodness property of adaptive rolling plans in a multisector optimal growth model under decreasing returns in deterministic environment. Goodness is achieved as a result of fast convergence (at an asymptotically geometric rate) of the rolling plan to balanced growth path. Further on, while searching for goodness, we give a new proof of strong concavity of an indirect utility function – this result is achieved just with help of some elementary matrix algebra and differential calculus.(original abstract)
first rewind previous Strona / 11 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.