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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.
- ДокументDeterminants of COVID-19 Death Rate in Europe: Empirical Analysis(Vinnytsia: Institute of Feed and Agriculture of Podillya National Academy of Agrarian Sciences of Ukraine, 2021) Serhii Kozlovskyi; Daria Bilenko; Oleksandr Dluhopolskyi; Serhii Vitvitskyi; Olha Bondarenko; Oleksandr KorniichukAt the end of 2019, the new virus called Coronavirus disease (COVID-19) spread widely from China all over the world (including Europe). Most countries in Europe at the beginning of 2020 have been quarantined. The aim of the work is to develop the system dynamics model for assessing the impact of the different factors on the COVID19 death rate in Europe. There were tested three hypotheses about factors of reducing the COVID-19 death rate with the help of linear regression analysis. The density of the population of European countries doesn’t affect the COVID-19 death rate. Also, COVID-19 death rate does not drastically affect mortality statistics. But the level of country’s economic development is a factor of COVID-19 death rate because in high developed countries the pandemic death rate is lower, regardless of the mechanisms of the spread of the disease and its impact on human health.
- 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.