Перегляд за Автор "Serhii Vitvitskyi"

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    Dark personality traits and job performance of employees: The mediating role of perfectionism, stress, and social media addiction
    (Суми: LLC “Consulting Publishing Company “Business Perspectives”, 2021-09-22) Mehmet Kiziloglu; Oleksandr Dluhopolskyi; Viktor Koziuk; Serhii Vitvitskyi; Serhii Kozlovskyi
    The purpose of this study was to explore the indirect and direct relationships of Big5 and dark personality traits (i.e., extroversion, neuroticism, agreeableness, openness, conscientiousness, narcissism, Machiavellianism, psychopathy, sadism, and spitefulness) with job performance via perfectionism, stress, and social media addiction. A total of 514 private sector employees filled out a query sheet that included the assessment tools for the variables. Path analysis using a multiple mediation model indicated that neuroticism was negatively directly and indirectly related to job performance via stress and social media addiction. Machiavellianism and spitefulness were directly positively associated with job performance, and Machiavellianism-related higher social media addiction diminished the direct positive effect of Machiavellianism on job performance, indicating complex relationships. Furthermore, stress, social media addiction, and perfectionism were related to different personality traits positively and negatively. Findings of the present study suggest that an anti-social personality may promote higher job performance. However, job performance may be adversely affected by the adverse consequences relating to these traits. Professionals and firms that attempt to increase job performance should take anti-social personality traits and their complex effects on job performance into account.
  • Ескіз недоступний
    Документ
    Determinants 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 Korniichuk
    At 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.