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Testing the Effects of Parameter Changes in the Bornholdt's Model
Chrz, Štěpán ; Krištoufek, Ladislav (advisor) ; Seman, Vojtěch (referee)
In this work we thoroughly analyze Bornholdt's version of Ising model of ferromagnetism, with emphasis on its ability to mimic some basic stylized facts of financial series. Initially, we provide a breakdown of model definition and analysis of underlying dynamics. Subsequently, we examine and confirm model's ability to mimic stylized facts of financial series. To examine robustness of this ability to parameter change, we conduct simulations over a set of parameter combinations. We conclude that there is a wide set of combinations that yields acceptable simulation results. We also note that the seemingly best results are obtained at parameter values close to border of this set. Powered by TCPDF (www.tcpdf.org)
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Testing the Effects of Parameter Changes in the Bornholdt's Model
Chrz, Štěpán ; Krištoufek, Ladislav (advisor) ; Seman, Vojtěch (referee)
In this work we thoroughly analyze Bornholdt's version of Ising model of ferromagnetism, with emphasis on its ability to mimic some basic stylized facts of financial series. Initially, we provide a breakdown of model definition and analysis of underlying dynamics. Subsequently, we examine and confirm model's ability to mimic stylized facts of financial series. To examine robustness of this ability to parameter change, we conduct simulations over a set of parameter combinations. We conclude that there is a wide set of combinations that yields acceptable simulation results. We also note that the seemingly best results are obtained at parameter values close to border of this set. Powered by TCPDF (www.tcpdf.org)
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Dissection of Bornholdt's model: examination of inner dynamics and effect of parameter change
Chrz, Štěpán ; Krištoufek, Ladislav (advisor) ; Vácha, Lukáš (referee)
Dissection of Bornholdt's model - Analysis of Inner Dynamics and Effect of Parameter Change Mgr. Štěpán Chrz Abstract In this work we thoroughly analyze Bornholdt's version of Ising model of ferro- magnetism, with emphasis on its ability to mimic some basic stylized facts of financial series. Initially, we provide a breakdown of model definition and anal- ysis of underlying dynamics. Subsequently, we examine and confirm model's ability to mimic stylized facts of financial series. To examine robustness of this ability to parameter change, we conduct simulations over a set of parameter combinations. We conclude that there is a wide set of combinations that yields acceptable simulation results. We also note that the seemingly best results are obtained at parameter values close to border of this set. 1
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Interconnections within Food, Biofuel and Fossil Fuel Markets: Cointegration Analysis
Chrz, Štěpán ; Hrubý, Zdeněk (advisor) ; Hildebrandt, Barbora (referee)
This work examines a topic of interconnections within food, biofuel and fossil fuel markets. The first part provides a general description of biofuel types, related policy measures and a development of relevant legal framework in selected regions. Second part describes an analysis of long and short-term causal relationships between commodities. Furthermore, an impact of Energy Policy Act of 2005 on these relationships is examined. The analysis incorporates Johansen cointegration, error correction model, vector autoregression and Granger causality. A number of equilibrium relationships are found across the examined markets suggesting an interconnection of the studied markets. The results of the impact of EPA are inconclusive due to limitations of employed models.
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