praca licencjacka BA Thesis, wealth distribution among network of...

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...Praca licencjacka obroniona w 2009 roku na Uniwersytecie Ekonomicznym w Krakowie, porusza tematyke sieci, makroekonomi, finansow, teori wydatkow gospodarstwa domowego itp

CRACOW UNIVERSITY OF ECONOMICSFaculty of ManagementRafał WolframWealth distribution among network of trading agents:The case of Burda, Krzywicki and Martin model and its extensionsPRACA LICENCJACKAB.A. THESISTutor: Prof. UEK dr hab. Czesław MesjaszCracow 2009Table of contentsTable of contentsIntroduction 3 Background 3 Problem Formulation 3Aim 4CHAPTER 1: Theoretical background 61.1 Networks 6 1.2 Bouchard and Mezard model 231.3 Burda, Krzywicki and Martin model 26CHAPTER 2: Discussion 31 2.1 Model's properties 31 2.2 Assumptions 342.3 Micro and Macroeconomic point of view -discussion about reasonability of agents' decisions 46 2.4 Attempt of model reformation – changes of agent behavior 47Conclusion 52Bibliography 53List of Figures 57List of Tables 57List of Appendixes 58IntroductionBackgroundMany works published in recent 20 years show that some properties of a whole can not be described only by properties of it's elements (e.g. Watts et al. 1998; Albert et al. 2000). Studies on a nature of connections between elements or on networks this connections create, may put some light on issues which we can not understand and describe using present approach. This change of approach, brings to existence of a new science- the network science. This interdisciplinary science, in recent 15 years, developed tools which proved it 's value on various fields, ranging from physics and molecular biology to economy, sociology and epidemiology. It seems that in particular social sciences like sociology and economy, which field of interest is a nature of relations between agents (people, consumers, companies and governments) may be a ground for further growth of network science.Problem FormulationCreation of a reasonable model of economy is a giant challenge. The classical models are relatively simple. Using them is very beneficial when one would like to understand basic principles governing economy. The major disadvantage of that models is their simplicity. When ...

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