scholarly journals Modeling of waiting times and price changes in currency exchange data

2004 ◽  
Vol 343 ◽  
pp. 677-693
Author(s):  
Przemysław Repetowicz ◽  
Peter Richmond
Author(s):  
D. M. Nazarov

The article describes the training methods in the course “Information Technologies” for the future bachelors of the directions “Economics”, “Management”, “Finance”, “Business Informatics”, the development of metasubject competencies of the student while his use of tools for data processing by means of the language R. The metasubject essence of the work is to update traditional economic knowledge and skills through various presentation forms of the same data sets. As part of the laboratory work described in the article, future bachelors learn to use the basic tools of the R language and acquire specific skills and abilities in R-Studio using the example of processing currency exchange data. The description of the methods is presented in the form of the traditional Key-by-Key technology, which is widely used in teaching information technologies.


1997 ◽  
Vol 07 (08) ◽  
pp. 1855-1859 ◽  
Author(s):  
Angela Hilgers ◽  
Christian Beck

The time evolution of stock exchange indices and foreign currency exchange rates has many similarities with turbulent flows. In particular, the probability densities of price changes are non-Gaussian and develop stretched exponential tails, quite similar to the densities of velocity differences measured in fully developed hydrodynamical turbulence. We show that a simple cascade model, based on a self-similar, hierarchical dynamics of price changes, describes the observed probability densities of the financial indices in a quantitatively correct way.


1998 ◽  
Vol 77 (5) ◽  
pp. 1353-1356
Author(s):  
Rosario N. Mantegna, H. Eugene Stanley

Author(s):  
Ryzhyuk Yevgeny

The subject of the research is a set of institutional institutions and organizational and managerial relations that effectively regulate the financial and investment environment in the EU countries, comparing them with Ukrainian realities.The goal of writing this article is to develop practical and scientific-methodicalrecommendations on how to increase the efficiency of using financial and investment potential based on the experience of EU countries. The methodology of thework-system-structural and comparative studies (to understand the logic of thefunctioning of institutions that form the investment environment and the mechanisms of their interaction); monographic analysis (in studying the problems ofattracting investors); historical and economic analysis (in assessing the state andprospects of the European, as well as the Ukrainian economy). Results of work -it is revealed that modern European regulators are aimed at forming a holisticinvestment and financial infrastructure and investment platform at the supranational level. It was proposed to carry out further liberalization of currency regulation in Ukraine in order to transform it into a convenient and efficient electronicautomated currency exchange system and introduce the integration of the domestic depository system into the international depositary clearing system Clearstream.It was noted that the financial and investment environment in Ukraine is blockedand domestic monopolies are interested in this, thanks to lobbying in the Verkhovna Rada of Ukraine and in the executive branch they have distorted financial,investment and currency legislation for their interests and needs. Conclusions-thepresence of a holistic investment and financial infrastructure in the EU countriesis due to the gradual convergence and unification of legislation at the nationallevel to the supranational level. In addition, it is reasonably high investment positions of Ireland in the world and it was proposed to use this experience to createa favorable financial and investment environment in Ukraine. Note that the formation of the financial and investment environment in Ukraine according to European standards is hampered by: oligarchic monopolies, which parasitizes mainly onnatural monopolies; government corruption; confusing and incomprehensible legislation for investors; high tax rates and tax administration system; instability ofthe banking system, the risks of hryvnia devaluation; the insecurity of landagrarian relations; as well as armed conflict in the east of Ukraine.


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