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Multiagentní modelování v sociologii: úvod do tématu

100%
Krčková A.
Data a výzkum - SDA Info (Data and Research - SDA Info)
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2013
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vol. 7
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issue 2
167-186
EN
The purpose of this article is to introduce multi-agent modelling as an area of research that has developed rapidly in sociology over the last fifteen years. This article starts by outlining some characteristics of multi-agent modelling and then covers the history of sociological component of complexity science. In the following part, the fundamental concepts used in multi-agent modelling such as model, agent, environment and emergence are defined. Thereafter, the article focuses on the application of multi-agent modelling in sociology and identifies specific areas where it might be used productively. An illustrative example of a multi-agent model called ‘Slumulation’ that explores how slums emerge in the city is described. Finally, the advantages and limits of this approach are summarized.
2
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Technological progress spillover effect in Lithuanian manufacturing industry

88%
Markauskas M., Baliute A.
Equilibrium. Quarterly Journal of Economics and Economic Policy
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2021
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vol. 16
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issue 4
783-806
EN
Research background: Various methods for technological progress assessment and evaluation exist in the context of economic development. Each of the methods possesses distinct advantages and disadvantages in analysis of technological progress fluctuations. For most neoclassical growth theories, technological progress measures are included as exogenous variables, thus excluding evaluation of factors influencing technological progress variation throughout time. Purpose of the article: The aim of this article is to offer improvements on classical technological progress evaluation methodologies for manufacturing industries, separating effect of intersectoral technological progress spillover effect from internal factors influencing technological progress growth and perform analysis in the case of Lithuanian manufacturing industry. Methods: Earlier research papers used linear time series regression and vector autoregression methods to assess technological progress values and define equations explaining effect of different manufacturing level indicators on technological progress measure growth. This research paper uses results of previously mentioned methods and performs simulation analysis applying agent-based modelling framework. Findings & value added: The conducted vector autoregression analysis has showed that two variables which influence technological progress most significantly are labor productivity measure and gross profit value. Sensitivity analysis emphasizes that effect of these two variables on technological progress growth is substantially different. Increase in gross profit value affects technological progress growth for wider range of sectors from Lithuanian manufacturing industry (15 out of 18 analyzed sectors? technological progress measure values are affected by changes in gross profit, while changes in labor productivity influence technological progress values in the case of 9 sectors). Rising gross profit values also produce intersectoral technological progress spillover effect more significantly, while growth in labor productivity measure has stronger effect on technological progress fluctuations for sectors which are able to exploit this effect. Presented research suggests improved methodology for intersectoral technological progress spillover effect assessment in the context of manufacturing industries.
3
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Universal Service Obligation and Loyalty Effects: An Agent-Based Modelling Approach

88%
Bakhtieva D., Kiljański K.
Yearbook of Antitrust and Regulatory Studies
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2012
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vol. 5(7)
125-141
EN
In network industries, a Universal Service Obligation (USO) is often seen as a burden on an incumbent, which requires compensation for the net cost of such service provision. This paper estimates the effects of consumer loyalty as an intangible benefit of USO in the postal sector. In doing so, the agent-based modelling (ABM) approach is applied, which makes it possible to model the behaviour of boundedly rational consumers and is thus particularly appropriate for taking into account intangibles considerations. The analysis shows that loyalty is crucial to whether the USO uniform pricing constraint results in loss-making or profitability. Under certain conditions and in the presence of a loyalty parameter, uniform pricing gives a USO provider an advantage, when the size of the rural area is sufficiently big and a disadvantage, if its size is too small. This finding is counterintuitive as USO providers in countries with sparsely populated areas are typically expected to incur a significant net cost of USO.
FR
L’obligation de service universel (USO) est souvent perçu par les industries de réseau comme un charge sur le fournisseur historique ce qui nécessite une compensation pour le coût net d’un tel fourniture de service. Cet article évalue les effets de la fidélité des consommateurs comme un avantage intangible de l’USO dans le secteur postal. Par cela, la modélisation multi-agents (GPA) est appliquée, ce qui permet de modéliser le comportement des consommateurs à rationalité limitée et qui est donc particulièrement approprié pour la prise en compte des considérations intangibles. L’analyse montre que la fidélité est essentielle pour savoir si la contrainte de prix uniforme de l’USO aboutit à la perte de décision ou de rentabilité. Sous certaines conditions et en présence d'un paramètre de fidélité, la tarification uniforme donne à un fournisseur de l’USO un avantage, lorsque la taille de la zone rurale est suffisament grande et un inconvénient, lorsque sa taille est trop petite. Ce résultat est contre-intuitif, car on attend généralement que les fournisseurs de l’USO dans les pays ayant des zones peu peuplées encourent un coût net important de l’USO.
4
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GENERATORS’ STRATEGIC BEHAVIOUR RESERCH BASED ON THE AGENT APPROACH TO THE POWER MARKET MODELING

88%
Grigoryeva A., Lisin E.
Czech Journal of Social Sciences, Business and Economics
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2012
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vol. 1
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issue 1
75-82
EN
This paper is devoted to the modeling of power markets and the generators’ strategic behavior, and to the application of market power strategies, in particular.The generator’s market power is its ability to influence the price of the offer and sale conditions in the power market without a reaction from competitors. The human factor leads to irrational features in the decision-making. That fact does not allow us to describe the behavior of market agents in the form of the optimization problem. So agent-based modeling of the complex economic systems is being actively developed now.
5
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Rola instytucji w programie ekonomii postwalrasowskiej Davida Colandera stanowiącej fundament nowej ekonomii złożoności (complexity economics)

51%
Kędzierski M.
Zarządzanie Publiczne / Public Governance
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2013
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issue 2-3(24-25)
90-101
PL
Głównym celem artykułu jest (1) przedstawienie podstawowych założeń ekonomii postwalrasowskiej, nurtu teoretycznego zapoczątkowanego w latach dziewięćdziesiątych XX w. przez amerykańskiego historyka myśli ekonomicznej Davida Colandera. Podważa on fundamentalne twierdzenia XX-wiecznej ekonomii, które czerpią z koncepcji naukowych Leona Walrasa, zwłaszcza w zakresie teorii ogólnej równowagi ekonomicznej. Jednym z kluczowych elementów programu ekonomii postwalrasowskiej jest uwzględnienie instytucji jako pozacenowego mechanizmu koordynacji procesów gospodarczych. Pozostałymi celami niniejszego tekstu są: (2) wskazanie sposobu, w jaki elementy heterodoksyjnych szkół ekonomii włącza się do głównego nurtu w ramach nowego zjawiska, jakim jest tzw. ekonomia złożoności (complexity economics), oraz (3) przedstawienie propozycji koniecznych zmian w zakresie metodologii ekonomii. W ramach zakończenia przedstawione zostaną (4) rozważania na temat implikacji koncepcji teoretycznych Colandera i innych przedstawicieli nowego nurtu ekonomii dla polityki gospodarczej.
EN
The main aim of the article is to present the basic elements of post-Walrasian economics, an economic school initiated in the 1990s by David Colander, American historian of economic thought. Colander questions the fundaments of mainstream economics, based inter alia on Leon Walras s theory of general equilibrium. One of the key elements of the post-Walrasian economics is the acknowledgement of institutions as non-price coordination mechanism in the economy. The article discusses how elements of heterodox economic schools are introduced into the mainstream economics within the new complexity economics, and suggests essential amendments to the methodology of economics. As a conclusion, the author presents the implication of the economic thought of David Colander and other representatives of complexity economics for the economic policy.
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