Перегляд за Автор "Ruslan Lavrov"
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- ДокументComparison and Assessment of Factors Affecting the COVID-19 Vaccination in European Countries(Kyiv: PHEI European University, 2021) Serhii Kozlovskyi; Daria Bilenko; Mykhailo Kuzheliev; Natalya Ivanyuta; Vira Butenko; Ruslan LavrovThe Covid-19 spread has become a major challenge for humanity in the last decade. It was believed that the Covid19 vaccine development would have to end the pandemic. On the contrary, society has faced a new challenge which is that there are both countries that cannot afford to purchase the Covid-19 vaccine and inhabitants who do not trust new vaccine. Without adequate Covid-19 vaccination level, the global pandemic is not going to end. The object of this study is factors affecting the vaccination Covid-19 in European countries. The subject of the study is the statistical analysis methods to compare and assess of factors affecting the vaccination Covid-19 in European countries. The aim of the study is to find out which concerns about vaccination are more important and have an impact on the Covid-19 vaccination level in European countries. It is examined six factors; three of them relate to the government vaccine administration, the other three are about a public opinion on Covid-19 vaccination. The analysis is carried out in 22 European countries. The result of the study allows to state that public opinions factors are more important in pandemic and have more impact on the vaccination rate.
- ДокументDETERMINATION OF THE RISK-FREE RATE OF RETURN ON AN INVESTMENT EFFICIENCY BASED ON THE FRACTAL MARKETS HYPOTHESIS(Варшава: УНІВЕРСИТЕТ WSB, 2020) Andrii KozlovskyI; Daria Bilenko; Serhii Kozlovskyi; Ruslan Lavrov; Oleh Skydan; Natalya IvanyutaIn determining the economic efficiency of an investment project, the rationale and choice of the discount rate is the most difficult step. The methods of investment assessment are built on the rate of return used to discount future cash flows back to their present value. To increase the accuracy of calculations and reduce the subjective assessments of experts, statistical methods are used. The market process is known to be stochastic. Therefore, investors know that the application of statistical methods is not practical, and thus prefer to use their ntuition and professional experience. The alternative group of methods such as the Fractal Markets Hypothesis is not widely used because it is difficult to carry out calculations according to the proposed formulas in practice. In this paper, the aim is to propose a method for determining the risk-free rate of return on an investment project based on the Fractal Markets Hypothesis for identifying long-term dependence and assessing the contribution to the total result of changes in inflation. The objective of the study is the determination of the risk-free rate of return on an investment project. The real risk-free rate is calculated as the existing inflation rate. The result of this paper is the definition of inflation boundaries for Poland, Ukraine and Russia, which may be used for determining the risk-free rate of return on an investment project.
- ДокументEfficiency Assessment of Tax Measures in the European Countries Against the Effects of COVID-19(Вінниця: Vinnytsia National Technical University, 2022) Daria Bilenko; Serhii Kozlovskyi; Natalya Ivanyuta; Viktoriia Baidala; Ruslan Lavrov; Volodymyr KozlovskyiOngoing global Covid-19 pandemic is not only health crisis but the economic challenge. The future of society depends on how successfully the authorities find a balance between imposition of stringent restrictions and economic development. Tax policies play a role in reducing losses caused by the Covid-19 lockdowns. All countries are taking tax measures to mitigate the impact of the effects of Covid-19 pandemic on society. While the Covid19 pandemic has not yet been defeated, it is too early to draw conclusions about which tax measures against the effects of Covid-19 are efficient. On the other hand, correct trajectory of economic recovery can be missed if not to analyze the other countries experience. The object of this study is tax measures in the European countries against the effects of Covid-19. The subject of the study is the fuzzy set theory to assess the efficiency of tax measures in the European countries against the effects of Covid-19. The aim of the study is to find out which European countries have been more succeeded in tax measures implementing and type of their immediate crisis response. The analysis is carried out in 29 European countries. The result of the study allows to state that the number of tax measures against the effects of Covid-19 does not affect their efficiency and the most popular type of immediate crisis response has been the business cash-flow enhances.
- ДокументINTELLECTUAL CAPITAL MANAGEMENT OF THE BUSINESS COMMUNITY BASED ON THE NEURO-FUZZY HYBRID SYSTEM(Kyiv: National Economic University named after Vadym Hetman, 2022-08-20) Serhii Kozlovskyi; Petro Syniehub; Andrii Kozlovskyi; Ruslan LavrovThe modern economy needs to address the issue of assessing intellectual capital as the basis for the development of market relations. The search for ways to solve this problem is possible based on the use of soft methods. The aim of the article is to develop a structural model for managing the intellectual capital of the business community based on an ppropriate neuro-fuzzy system. Developed on the basis of soft computing methods, an innovative model for estimating intellectual capital of the business community is able to process “non-rigorous”, incomplete or distorted input data, work with qualitative concepts, ambiguous and uncertain statements, perform operations with weak formalized economic parameters. The experimental results obtained made it possible to formulate the methods for evaluating the intellectual capital of business communities (or other similar economic systems) characterized by fuzzy relations between input and output parameters, considerable difficulties in formalizing the factors of influence, capability of using linguistic experts’ statements for building an information and analytical system, etc. The developed hybrid neuro-fuzzy system “Board” for evaluating intellectual capital of a business community enables to process both quantitative and qualitative input data, and was built up according to the criteria of digital economy transformation projects.
- ДокументModelling Regional Sustainable Development in Ukrainian Crisis and War(Зальцбург:Європейська академія наук і мистецтв, 2023-01-01) Olena Shevchuk; Olha Ilyash; Glib Mazhara; Nadiia Roshchyna; Svitlana Hrynkevych; Ruslan Lavrov; Serhii KozlovskyiThe article investigates the impact of force majeure crisis factors that appeared in the Ukrainian economy as a result of the global recession, the events of 2014-2021 (annexation of Crimea, temporary occupation of part of the industrial territories of Donetsk and Luhansk regions, military operations in Donbas, during the fight against pandemic (COVID-19), war in 2022 on the stable development of regions. Based on the analysis of official indicators of the State Statistics Service of Ukraine, it was proved that the said factors create additional multiplier and acceleration effects that adversely affect the dynamics of the gross regional product in the crisis conditions. It has been determined that the result of these effects is the transformation of crisis signals from a proactive to an active phase. The construction of a heat map of GRP correlation indicators made it possible to determine the existence of a disbalance between the economic and social development of the regions. Building a model of linear regression, allowed us to draw conclusions about the existing disbalance of GRP regions during the crisis and war
- ДокументRelationship between net Relationship between net migration and economic tion and economic development of European opment of European countries: Empirical conclusions(Суми: ТОВ «Перспективи бізнесу», 2024-03-18) Serhii Kozlovskyi; Tetiana Kulinich; Ihor Vechirko; Ruslan Lavrov; Ivan Zayukov; Hennadii MazurThe study aims to investigate the relationships between the volume of net migration and the economic development of individual European countries, which will make it possible to forecast the level of GDP and strengthen their migration policy. Correlation-regression analysis was used based on statistical data from Eurostat and the State Statistics Service of Ukraine for the period 2014−2021 for selected European countries (the EU-27 member states, Switzerland, and Ukraine). The correlation-regression analysis showed a relationship between the volume of net migration and the level of GDP. The linear correlation equations forecasted the value of the GDP level depending on the influence of a single factor – the volume of net migration. The attention is focused on the importance of migration, which ensures economic growth for Poland. It is attractive due to a simpler mechanism for moving immigrants than in other EU-27 countries, ease of language learning and easier adaptation, territorial proximity, and a higher standard of living compared to neighboring countries that were part of the Soviet Union. Thus, an increase in net migration to Poland by 1% will lead to an increase in gross domestic product by 1.43 million euros. Due to Russia’s war against Ukraine, net migration from Ukraine to Poland has increased significantly, potentially increasing Poland’s GDP in 2023 by 0.08% or 529.54 million euros
- ДокументTHE INFLUENCE OF THE NET FINANCIAL RESULT OF THE ACTIVITIES OF THE STATE ENTERPRISES OF UKRAINE ON THE EFFICIENCY OF THE USE OF THEIR CAPITAL IN THE CORPORATE MANAGEMENT SYSTEM(Чехія: ENIGMA CORPORATION, 2024) Ivan Zayukov; Hennadii Mazur; Serhii Kozlovskyi; Ruslan Lavrov; Matsyuk VladyslavIncreasing the efficiency of corporate management of state-owned enterprises in the current military conditions of Ukraine is an important factor in ensuring an increase in their profitability. The increase in the rate of return on equity is a guarantee of further socio-economic development of state-owned enterprises. The purpose of the article is to study the relationship between the net financial results of the activities of state-owned enterprises and the profitability of their capital as an important task of improving the efficiency of corporate management of state-owned enterprises of Ukraine. Systematization of the main data on the state companies of Ukraine, which were selected for analysis, was carried out, in particular: LLC "Gas supply company "Naftogaz of Ukraine"; National Energy Company "Ukrenergo"; State enterprise "National Atomic Energy Generating Company "Energoatom"; Public joint-stock company "Ukrhydroenergo"; Boryspil International Airport. An analysis of the statistical data of the Organization for Economic Cooperation and Development for the years 2014−2019 of the net financial result of the activities of state-owned enterprises of Ukraine and the profitability of their capital was carried out. A correlation-regression analysis was conducted to determine the influence of the net financial results of the activities of state-owned enterprises on the profitability of their capital. It was found that there is a reliable positive relationship between the net financial result of the activity of state-owned enterprises of Ukraine and the profitability of their capital. The results obtained during the correlation-regression analysis for the considered state enterprises are summarized. A model of corporate management of state-owned enterprises is proposed. The model presents management subjects (the state, shareholders, external investors, staff, etc.). The main four blocks that make it possible to ensure effective corporate management are presented: the supervisory board, the board, strategic planning, ownership policy.
- ДокументThe Influence of the World Grain Market on Prevalence of Mankind’s Undernourishment in the Times of War on the Ukraine(Польща: Люблінський технологічний університет, 2024) Serhii Kozlovskyi; Allam Yousuf; Vira Butenko; Tetiana Kulinich; Olena Bohdaniuk; Liudmyla Nikolenko; Ruslan LavrovThe world cereal production and supply as well as their trade, stock and losses are important indicators of the world market of cereals. They play a huge role in ensuring food security. The aim of this research is to identify the relation of the indicators of the world grain crops market (production, supply, losses, trade, stocks) and the level of malnutrition Prevalence of Undernourishment (PoU) among the world's population. Based on data from the Food and Agriculture Organization of the United Nations (FAO), a correlation-regression analysis was conducted between indicators of the global grain crops market, in particular: the wheat market, the fodder market of grain crops, the rice market and PoU of the world population for the period 2013/14 – 2020/2021 marketing years. It has been proven that there is a close, statistically reliable relationship between the above mentioned indicators, except for grain stocks and POU. The analysis of the world cereal market showed that among the indicators characterizing its conditions, the indicator trade in grain crops (r = 0.851; D = 0.724; F = 3.968, (F > F t ); z = 1.26; rL = 0.37; rU = 0.97) has the highest level of correlation. It was found that with an increase in the volume of world cereal trade by 1 million tons, the PoU level will increase by 0.018%. A review of literary sources proves that the problem of ensuring food security, in particular with regard to reducing the level of starvation and malnutrition, cannot be solved only by fighting climate change, overcoming socio-economic and military problems, fighting pandemics, etc. Its solution to a large extent depends on fair, uniform export and import of food products, as evidenced by the calculations. A separate direction for solving the problem of the spread of malnutrition is the elimination of the policy of highly developed countries regarding the application of individual sanctions against countries with high PoU values, in particular, the Central African Republic, Madagascar, Haiti, Afghanistan, Chad, Congo, Lesotho, Liberia, Mozambique, etc.