Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "NASH" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 65
Tytuł:
Stock market as a dynamic game with continuum of players
Autorzy:
Wiszniewska-Matyszkiel, A.
Powiązania:
https://bibliotekanauki.pl/articles/970603.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
stock exchange
multistage games
continuum of players
Nash equilibrium
belief-distorted Nash equilibrium
Opis:
This paper contains a game-theoretic model describing the behaviour of investors at a stock exchange. The model presented is developed to reflect the actual market microstructure. The players constitute a non-uniform continuum, differing, among others, by the planning horizon, the external flow of money which can be invested, formation of expectations about future prices, which, briefly, divides the investors into five substantially different groups. Prices are determined by orders and the equilibrating mechanism of the stock exchange. The mechanism presented is the actual single-price auction system used, in particular, at Warsaw Stock Exchange. One of the main issues are self-verifying beliefs. Results of numerical simulations of stock exchange based on the model are also included.
Źródło:
Control and Cybernetics; 2008, 37, 3; 617-647
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression of genes encoding mitochondrial proteins can distinguish nonalcoholic steatosis from steatohepatitis
Autorzy:
Bragoszewski, Piotr
Habior, Andrzej
Walewska-Zielecka, Bozena
Ostrowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1041083.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
NAFLD
gene expression
NASH
mitochondria
Opis:
In patients without substantial alcohol use, triglyceride accumulation in the liver can lead to nonalcoholic fatty liver disease (NAFLD) that may progress to nonalcoholic steatohepatitis (NASH). The differential diagnosis between NAFLD and NASH can be accomplished only by morphological examination. Although the relationship between mitochondrial dysfunction and the progression of liver pathologic changes has been described, the exact mechanisms initiating primary liver steatosis and its progression to NASH are unknown. We selected 16 genes encoding mitochondrial proteins which expression was compared by quantitative RT-PCR in liver tissue samples taken from patients with NAFLD and NASH. We found that 6 of the 16 examined genes were differentially expressed in NAFLD versus NASH patients. The expression of hepatic HK1, UCP2, ME2, and ME3 appeared to be higher in NASH than in NAFLD patients, whereas HMGCS2 and hnRNPK expression was lower in NASH patients. Although the severity of liver morphological injury in the spectrum of NAFLD-NASH may be defined at the molecular level, expression of these selected 6 genes cannot be used as a molecular marker aiding histological examination. Moreover, it is still unclear whether these differences in hepatic gene expression profiles truly reflect the progression of morphological abnormalities or rather indicate various metabolic and hormonal states in patients with different degrees of fatty liver disease.
Źródło:
Acta Biochimica Polonica; 2007, 54, 2; 341-348
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Price-based coordinability in hierarchical systems with information asymmetry: a comparative analysis of Nash equilibrium conditions
Autorzy:
Karpowicz, M. P.
Malinowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/206529.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
Nash equilibrium, coordination asymmetric information
optimization
Opis:
The well-known problem of price-based coordinability is studied for the case of a multi-agent system in which information regarding the goals of the interacting subsystems is asymmetric. The paper illustrates how the uniform-price-based coordination rulet may create incentives to anticipate the values of coordination signals and, thus, why the coordinability condition cannot be satisfied under asymmetric information. For this purpose a comparison is given of Nash equilibrium outcomes that are reachable individually by priceanticipating agents in two noncooperative games. These games are induced by the uniform-price-based coordination mechanism and are referred to as payment-bidding auction and demand-bidding auction. The analysis presented shows that in the games considered some of the agents may improve payoffs and allocations by applying the price-anticipating bidding strategies. However, the payment-bidding auction cannot be strictly dominated by the demand-bidding action with respect to the resource allocation levels individually received by each agent. The derived results of theoretic considerations are illustrated by numerical examples.
Źródło:
Control and Cybernetics; 2013, 42, 1; 85-110
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The field of Nash functions and factorization of polynomials
Autorzy:
Spodzieja, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/1310893.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Nash function
field
decomposition of polynomial
Opis:
The algebraically closed field of Nash functions is introduced. It is shown that this field is an algebraic closure of the field of rational functions in several variables. We give conditions for the irreducibility of polynomials with Nash coefficients, a description of factors of a polynomial over the field of Nash functions and a theorem on continuity of factors.
Źródło:
Annales Polonici Mathematici; 1996-1997, 65, 1; 81-94
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategic option pricing
Autorzy:
Bieta, Volker
Broll, Udo
Siebe, Wilfried
Powiązania:
https://bibliotekanauki.pl/articles/1837957.pdf
Data publikacji:
2020-09-30
Wydawca:
Uniwersytet Ekonomiczny w Poznaniu
Tematy:
option pricing
game theory
Nash equilibrium
Opis:
In this paper an extension of the well-known binomial approach to option pricing is presented. The classical question is: What is the price of an option on the risky asset? The traditional answer is obtained with the help of a replicating portfolio by ruling out arbitrage. Instead a two-person game from the Nash equilibrium of which the option price can be derived is formulated. Consequently both the underlying asset’s price at expiration and the price of the option on this asset are endogenously determined. The option price derived this way turns out, however, to be identical to the classical no-arbitrage option price of the binomial model if the expiration-date prices of the underlying asset and the corresponding risk-neutral probability are properly adjusted according to the Nash equilibrium data of the game.
Źródło:
Economics and Business Review; 2020, 6, 3; 118-129
2392-1641
Pojawia się w:
Economics and Business Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the Game Approach to Fuzzy Madm
Autorzy:
Larbani, Moussa
Chen, Yuh-Wen
Powiązania:
https://bibliotekanauki.pl/articles/578604.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
Zakres fuzzy
Gra przeciwko naturze
Równowaga Nash
Fuzzy MADM
Fuzzy interval
Game against Nature
Nash equilibrium
Opis:
In the FSS paper 157 (2005, p. 34-51) we presented a game approach for solving MADM problems with fuzzy decision matrix. The results of the paper essentially depend on the assumption that the entries of the fuzzy decision matrix are triangular fuzzy numbers and dependent via a real parameter \lambda. In this paper we present a more general game approach for solving fuzzy MADM problems free of these restrictions. The entries of the decision matrix are assumed to be not necessarily dependent fuzzy intervals with bounded support as defined by Dubois and Prade.
Źródło:
Multiple Criteria Decision Making; 2014, 9; 58-71
2084-1531
Pojawia się w:
Multiple Criteria Decision Making
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Minority Game and Quantum Game Theory
Gra Mniejszościowa I Kwantowa Teoria Gier
Autorzy:
Bolonek, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/906291.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
minority game
quantum game theory
Nash equilibrium
Opis:
Artykuł zawiera propozycje procedur kwantowania gier dobrze znanych w klasycznej teorii gier. Przedstawiono proste modele gier kwantowych. Jako pierwszy został omówiony dylemat więźnia zarówno w wersji klasycznej jak i kwantowej, który ma wiele praktycznych zastosowań w ekonomii, jednym z przykładów są oszustwa w porozumieniach kartelowych. Kolejnym modelem gry kwantowej jest kwantowa gra rynkowa opisana za pomocą kwantowego oscylatora harmonicznego. Jako ostatni został omówiony model kwantowej gry mniejszościowej.
This paper builds up on proposed convincing procedures telling how to quantize well-known games from the classical game theory. The thesis introduces some simple models of quantum games. At first, the prisoners’ dilemma in classical and quantum version is described. This simple model has many practical applications in economics, one example being frauds in cartel agreements. The next model of quantum game is the quantum market game, described with the help of the quantum harmonic oscillator. It is known that quantum algorithms may be thought of as the games between classical and quantum agents; therefore, as the last example the quantum minority game is introduced.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2009, 228
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Allocating Pooled Inventory According to Contributions and Entitlements
Autorzy:
Gerchak, Y.
Powiązania:
https://bibliotekanauki.pl/articles/375956.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
inventory pooling
retailer contributions
entitlements
Nash equilibrium
Opis:
Inventory pooling, whether by centralization of stock or by mutual assistance, is known to be beneficial when demands are uncertain. But when the retailers are independent, the question is how to divide the benefits of pooling. e consider a decentralized inventorypooling scheme where a retailer’s entitlements to the allocation during a shortage depend on his/her contributions to the pool. We derive the Nash equilibrium and specialize it to symmetric cases.
Źródło:
Decision Making in Manufacturing and Services; 2015, 9, 1; 51-54
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The market as the Minority Game and the statistical physics
Giełda jako gra mniejszościowa i fizyka statystyczna
Autorzy:
Bolonek, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/905683.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
minority game
stationary states
stability
Nash equilibria
Opis:
The simplest version of minority game is introduced. It is shown how the minority game can result from the behaviour of individuals. The stability analysis of stationary state is briefly discussed. The modification of the game is described which leads to Nash equilibra as stationary states.
W ostatnich latach obserwuje się wzrastające zainteresowanie zastosowaniami metod fizyki statystycznej w matematycznej teorii rynków finansowych. Okazuje się, że takie idee i metody mechaniki statystycznej, jak równania stochastyczne, rozkłady Gibbsa, przejścia fazowe czy teoria fluktuacji znakomicie nadają się do opisu zjawisk cechujących rynki finansowe. W referacie podaję zwięzłą dyskusję analizy metodami fizyki matematycznej prostego modelu giełdy - gry mniejszościowej, zdefiniowanej jako gra, w której w każdym kroku zyskuje gracz, który podejmuje decyzję taką jak mniejszość graczy. Okazuje się, że standardowe metody fizyki (funkcja Ljapunowa, równanie Langevina, teoria fluktuacji) pozwalają dokładnie opisać stany stacjonarne gry łącznie z takimi własnościami, jak jednoznaczność, minimalizacja przewidywalności, duże fluktuacje w fazie symetrycznej itp.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2008, 216
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Noethérianité de certaines algèbres de fonctions analytiques et applications
Autorzy:
Elkhadiri, Abdelhafed
Hlal, Mouttaki
Powiązania:
https://bibliotekanauki.pl/articles/1207892.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
Nash functions
regular rings
analytic algebra
subanalytic sets
Opis:
Let $M ⊂ ℝ^{n}$ be a real-analytic submanifold and H(M) the algebra of real analytic functions on M. If K ⊂ M is a compact subset we consider $S_{K}={f ∈ H(M)| f(x) ≠ 0 \ \text{for all} \ x ∈ K}$; $S_{K}$ is a multiplicative subset of $H(M)$. Let $S_{K}^{-1}H(M)$ be the localization of H(M) with respect to $S_{K}$. In this paper we prove, first, that $S_{K}^{-1}H(M)$ is a regular ring (hence noetherian) and use this result in two situations:
   1) For each open subset $Ω ⊂ ℝ^{n}$, we denote by O(Ω) the subalgebra of H(Ω) defined as follows: f ∈ O(Ω) if and only if for all x ∈ Ω, the germ of f at x, $f_{x}$, is algebraic on $H(ℝ^{n})$. We prove that if Ω is a bounded subanalytic subset, then O(Ω) is a regular ring (hence noetherian).
   2) Let $M ⊂ ℝ^{n}$ be a Nash submanifold and N(M) the ring of Nash functions on M; we have an injection N(M) → H(M). In [2] it was proved that every prime ideal p of N(M) generates a prime ideal of analytic functions pH(M) if M or V(p) is compact. We use our Theorem 1 to give another proof in the situation where V(p) is compact. Finally we show that this result holds in some particular situation where M and V(p) are not assumed to be compact.
Źródło:
Annales Polonici Mathematici; 2000, 75, 3; 247-256
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A process algebraic form to represent extensive games
Autorzy:
Gheibi, O.
Ramezanian, R.
Powiązania:
https://bibliotekanauki.pl/articles/205871.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
extensive games
Nash equilibrium
process theory
process algebra
Opis:
In this paper, we introduce an agent-based representation of games, in order to propose a compact representation for multi-party games in game theory. Our method is inspired by concepts in process theory and process algebra. In addition, we introduce an algorithm whose input is a game in the form of process algebra (proposed in this paper) and as an output, the algorithm finds the Nash equilibrium of the game in linear space complexity.
Źródło:
Control and Cybernetics; 2015, 44, 1; 129-148
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On a universal axiomatization of the real closed fields
Autorzy:
Nowak, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1310894.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
real closed fields
real valuations
Nash functions
quantifier elimination
Opis:
This paper presents a natural axiomatization of the real closed fields. It is universal and admits quantifier elimination.
Źródło:
Annales Polonici Mathematici; 1996-1997, 65, 1; 95-103
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of strategies in a monetary-fiscal game. The case of Poland
Autorzy:
Krus, L.
Woroniecka-Leciejewicz, I.
Powiązania:
https://bibliotekanauki.pl/articles/205618.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
monetary-fiscal game
macroeconomic modeling
Nash equilibria
Pareto optimality
Opis:
A monetary-fiscal game describing the interactions of the fiscal and monetary authorities is formulated and analyzed. A macroeconomic model for the Polish economy has been formulated on the basis of the concept of New Neoclassical Synthesis and respectively extended so as to accommodate the effects of fiscal policy. Several variants of the model have been estimated using statistical data for the Polish economy. It is assumed in the game that each party (monetary and fiscal) tries to achieve its own goal: the fiscal authority – the assumed GDP growth, and the monetary authority – an inflation level. The best response strategies of the authorities and the Nash equilibria are calculated and analyzed in two cases, namely when the decisions are made simultaneously and sequentially. The simulation results obtained indicate that when the authorities try to achieve independently their goals, in a general case the Nash equilibrium is not Pareto optimal. The best response strategies may lead to conflict escalation and to results which are not beneficial for both parties.
Źródło:
Control and Cybernetics; 2016, 45, 2; 163-183
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
USEFUL GOVERNMENT EXPENDITURE INFLUENCE ON THE SHADOW ECONOMY
Autorzy:
Malaczewska, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/452927.pdf
Data publikacji:
2013
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
shadow economy
useful government expenditure
game theory
Nash equilibrium
Opis:
This paper contains the attempt to describe the phenomenon of shadow economy as a zero-sum non-cooperative, normal form game between households and the government. In the model government spending can be treated as a government consumption or as an expenses that contribute to increased social welfare and for the provision of public goods and services. We conduct sensitivity analysis of Nash equilibrium in models with two different types of government expenditure and examine whether proposed models indicate a various mechanisms and determinants of the undeclared economic activity.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2013, 14, 2; 61-69
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nash – Disequilibrium, Random Decisions and Imbalance of Society: Is it Relevant to Ukraine?
Autorzy:
Hurnyak, Ihor
Struk, Oleksandra
Hrytsyshyn, Anna
Powiązania:
https://bibliotekanauki.pl/articles/20697770.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Śląski. Wydział Nauk Społecznych
Tematy:
Ukrainian society
case study
mathematical modeling
Nash disequilibrium
Axelrod tournament
Opis:
Ukrainian society is undergoing rapid transformational changes. The authors attempted to identify the main behavioral strategies before the war as well as possible changes in the following years. Attempting to recognize the most prevalent behavior in society, the interaction and attitude of students during the exam were taken into consideration. The student group includes representatives of various regions in proportionate numbers. The research is based on the simulation of the interaction of different groups in society by means of game theory and programming. The study proposes using Schumpeter market disturbances and ‘Nash disequilibrium’ to invigorate the current ineffective system. It has been shown that pre-war Ukrainian society exhibited a very high level of collusion. The interim conclusions were tested using Axelrod’s tournament algorithms and strategies. A simulation of the cooperative equilibrium in Ukrainian society during the pre-war period was demonstrated. The study also contains important predictions about the changes in the institutional environment in the aftermath of the war in Ukraine.
Źródło:
Political Preferences; 2023, 31, 1; 5-30
2449-9064
Pojawia się w:
Political Preferences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 65

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies