Browsing by Author "Ulusoy T."

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Complexity of major UK companies between 2006 and 2010: Hierarchical structure method approach
(2012-11-01) Ulusoy T.; Keskin M.; Shirvani A.; Deviren B.; Kantar E.; Çaǧri Dönmez C.
This study reports on topology of the top 40 UK companies that have been analysed for predictive verification of markets for the period 2006-2010, applying the concept of minimal spanning tree and hierarchical tree (HT) analysis. Construction of the minimal spanning tree (MST) and the hierarchical tree (HT) is confined to a brief description of the methodology and a definition of the correlation function between a pair of companies based on the London Stock Exchange (LSE) index in order to quantify synchronization between the companies. A derivation of hierarchical organization and the construction of minimal-spanning and hierarchical trees for the 2006-2008 and 2008-2010 periods have been used and the results validate the predictive verification of applied semantics. The trees are known as useful tools to perceive and detect the global structure, taxonomy and hierarchy in financial data. From these trees, two different clusters of companies in 2006 were detected. They also show three clusters in 2008 and two between 2008 and 2010, according to their proximity. The clusters match each other as regards their common production activities or their strong interrelationship. The key companies are generally given by major economic activities as expected. This work gives a comparative approach between MST and HT methods from statistical physics and information theory with analysis of financial markets that may give new valuable and useful information of the financial market dynamics. © 2012 Elsevier B.V. All rights reserved.
Is It Possible to Understand the Dynamics of Cryptocurrency Markets Using Econophysics? Crypto-Econophysics
(2019-01-01) Ulusoy T.; Çelik M.Y.
Closely related to the entire humanity, Finance, as a scientific field, seeks to meet humanity’s endless needs and to continue its race against time. While doing so, it also benefits from other branches of science. Since speed, reliability, accessibility are at the forefront of model structures, finance continuously improves itself and tries to achieve the best interaction with other disciplines. Financial physics, also known as Econophysics, has brought new statistical methods and insights into the studies. Since thermodynamic laws, one of the most frequently used simulation systems, can explain the basics of all physical movements, the crypto money market, the stock market, and the dynamics of the foreign exchange market have been introduced. Thermodynamics describes heat movements; explain internal energy of economic systems, heat and jobs created (also called wealth or profits), and open a new page in quantitative/qualitative Economic Research. In this study, following the second law of thermodynamics, the Carnot cycle was written with a new point of view from the question of whether the amount of work given to the system in the crypto currency reserve can explain the possible trading (exchange) prices that occur or are likely to occur with the exchange of money.
Price fluctuations in econophysics
(2017-01-01) Ulusoy T.
The object of this research is to produce perspective to deal with the challenge that can surpass boundaries and limitations of scientific acceptance of the theory in social sciences and economics. The main spots of activity in Econophysics has been the financial markets, and having to accept the stock market as a complex network of natural events for physicists by navigating through its terabytes of well-defined time series data. The evidence for the fat-tailed distribution of asset price changes has now been established beyond doubt as a truly universal feature of economic souk. Field of Physics consists of theoretical foundations of several types of research, obtained through multi-disciplined instruction that can help make scientific and objective experiments with reference to predictive facts. As a result of this, the required experiments could administrate in different areas.
Price fluctuations in econophysics
(2017-01-01) Ulusoy T.; Ulusoy, T
The object of this research is to produce perspective to deal with the challenge that can surpass boundaries and limitations of scientific acceptance of the theory in social sciences and economics. The main spots of activity in Econophysics has been the financial markets, and having to accept the stock market as a complex network of natural events for physicists by navigating through its terabytes of well-defined time series data. The evidence for the fat-tailed distribution of asset price changes has now been established beyond doubt as a truly universal feature of economic souk. Field of Physics consists of theoretical foundations of several types of research, obtained through multi-disciplined instruction that can help make scientific and objective experiments with reference to predictive facts. As a result of this, the required experiments could administrate in different areas.