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1
Content available Assessment of the historical policy mixes for Poland using the game approach
Kruś L., Woroniecka-Leciejewicz I.
Control and Cybernetics
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2018
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Vol. 47, no. 3
277--300
EN
The study here presented pertains to the analysis of mutual interactions of the monetary and fiscal policies in the case of Poland. The historical policies carried out during different periods of time and their economic effects are compared with the possible strategies, obtained from the analysis of the proposed monetaryfiscal game. In the study, the methods of non-cooperative game theory are combined with macroeconomic modeling. The respective game is formulated for monetary and fiscal authorities as players. Strategies of these players refer to the respective instruments of their policies: the real interest rate and the budget deficit in relation to GDP. Payoffs include inflation and GDP growth, respectively. The payoffs are calculated using a recursive macroeconomic model estimated for the Polish economy. The model describes influences of the instruments of the monetary and fiscal policies on the state of the economy. The best response strategies, the Nash equilibria and Pareto optimality are analyzed. Changes of the policies towards the more restrictive or more expansive ones and their effects in comparison to the historically applied are discussed. This is performed for two different time periods – the time of recovery after 2004 and the time of the global financial crisis after 2008.
2
Content available Analysis of incentive compatible decisions in a multicriteria auction
Kruś L., Skorupiński J., Toczyłowski E.
Operations Research and Decisions
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2013
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Vol. 23, No. 3
23--33
EN
An iterative multicriteria closed-auction conducted with the use of a multi-agent computer-based system is analyzed. This system supports the submission of offers, multicriteria analysis carried out by the organizer of the auction, simulation, and analysis of the behavior of competing bidders. Analysis of incentive compatible decisions is the main subject of this research. A mathematical formulation of the decision making problem and selected results of a bidding session conducted using this system are presented and analyzed.
3
Content available Analiza motywacyjnie zgodnych decyzji w wielokryterialnym przetargu
Kruś L., Skorupiński J., Toczyłowski E.
Automatyka / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
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2011
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T. 15, z. 2
281-289
PL
W pracy są rozpatrywane warianty realizacji wielokryterialnego przetargu zamkniętego realizowanego w wielu rundach z wykorzystaniem wieloagentowego systemu komputerowego. System wspomaga realizację przetargu, wielokryterialne analizy dokonywane przez organizatora przetargu oraz symulację i analizę różnych zachowań organizatora i uczestników przetargu. Przedmiotem badań jest analiza decyzji motywacyjnie zgodnych. Przedstawiono sformułowania matematyczne, wybrane wyniki przeprowadzonych sesji oraz ich analizę.
EN
In the paper an iterative multicriteria closed-bidding auction conducted with the use of a multi-agent computer-based system is analyzed. The system supports submission of tenders, multi­criteria analysis made by an organizer of bidding, simulation, and analysis of bidding competitors' behavior. Analysis of incentive compatible decisions is the main subject of the research. A mathematical formulation of the decision problems and selected results of bidding sessions conducted with use of the system are presented and analyzed.
4
Content available remote Cost allocation in partition function form games
Kruś L.
Badania Operacyjne i Decyzje
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2009
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nr 2
39-49
EN
A cooperative game in partition function form is proposed for a cost allocation problem. The game describes a real situation in which a payoff of any coalition does not only depend on the players in the coalition but also on the coalition structure of the other players. Solution concepts like the stable set and the core are analyzed. Relations of the concepts in the case of the game in partition function form and of an appropriately formulated game in characteristic function form are shown.
PL
W artykule rozpatrywana jest klasa gier kooperacyjnych w postaci funkcji partycji opisujących problem alokacji kosztów. Problem ten dotyczy sytuacji, w której grupa aktorów – graczy może wspólnie Cost allocation in partition function form games 49 pozyskać pewien zestaw dóbr, realizując odpowiednie projekty rozwojowe i dzieląc między siebie związane z tym koszty. Gracze mogą w celu pozyskania wymaganych dóbr tworzyć różne koalicje i realizować różne projekty. Proponowana klasa gier kooperacyjnych w postaci funkcji partycji umożliwia analizę tego problemu. Gry takie opisują rzeczywiste sytuacje, w których wypłaty każdej koalicji zależą nie tylko od graczy, którzy ją tworzą, ale także od struktury koalicji tworzonych przez pozostałych graczy. W pracy rozwijana jest teoria takich gier. Proponuje się koncepcje takich rozwiązań jak rdzeń gry i zbiory stabilne na podstawie wprowadzonych relacji dominacji. Analizuje się własności tych koncepcji rozwiązań. Podaje się twierdzenia pokazujące, że w określonych przypadkach rozważane koncepcje rozwiązań gier w postaci funkcji partycji mogą być wyznaczone jako odpowiednie rozwiązania gier w postaci funkcji charakterystycznej.
5
Content available remote On some procedures supporting multicriteria cooperative decisions
Kruś L.
Foundations of Computing and Decision Sciences
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2008
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Vol. 33, No. 3
257-270
EN
The paper deals with cooperation problems in the case of several parties having different sets of criteria measuring their payoffs. It presents interactive procedures supporting multicriteria analysis and aiding consensus seeking through a mediation process. Using ideas of the cooperative game theory, a mathematical model describing cooperation situations and deriving possible payoffs of parties can be constructed. The model is a base for the analysis made. Solution concepts developed in the cooperative game theory are applied in the mediation process. The procedures can be used in a computer-based system supporting analysis carried on by the parties.
6
Content available remote A multicriteria approach to cooperation in the case of innovative activity
Kruś L.
Control and Cybernetics
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2004
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Vol. 33, no 3
449-462
EN
The paper deals with ideas of multicriteria decision support with the use of computer based systems. A negotiation problem is considered related to joint realization of a risky innovative project by two parties. It is considered as a multicriteria bargaining problem. A procedure enabling interactive multicriteria analysis and derivation of mediation proposals is proposed. Some results of experimental calculations are included.
7
Content available remote Computational Analysis of Cooperative Solutions in an Education System
Kruś L.
Bulletin of the Polish Academy of Sciences. Technical Sciences
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2003
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Vol. 51, nr 3
303-322
EN
The paper deals with a model of an education system. The model describes cooperation of university with students in the presence of risk. A corresponding joint venture problem is formulated. Three cooperative solution concepts (Nash, Raiffa and Egalitarian) to the problem are analysed. The analysis is made from axiomatic point of view, taking into account properties of the solutions concepts. Next a computational analysis is made. An experimental system based on the model has been constructed. A number of computational experiments have been made. Results of the experiments are presented and discussed.
8
Content available remote A System Supporting Financial Analysis of an Innovation Project in the Case of Two Negotiating Parties
Kruś L.
Bulletin of the Polish Academy of Sciences. Technical Sciences
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2002
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Vol. 50, Nr 1
93--108
EN
The paper deals with cost - benefit - risk analysis of an innovation project. The analysis is considered in the case of two parties involved in the project realization, and negotiating joint venture contract. A model and a computer-based system are presented supporting the analysis and negotiation process. Some numerical results illustrating the problem discussed are included.
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