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Публікація Dynamics of the Market for Shares of Medium-Sized Enterprises in the Cluster of US Food Companies with a Minimum Market Capitalization(2023) Bilotserkivskyi, Oleksandr; Kaganovskyy, O. S.; Lyashenko, VyacheslavThe functioning and development of business is closely related to the concept of security. Such security applies both to the direct conduct of certain activities and to the content surrounding the enterprise. Food security is of particular importance in this aspect. This type of security largely determines the economic aspects of the stable activity of various areas in ensuring sustainable interaction between business entities, countries and the population. Therefore, the analysis of the activities of enterprises from the cluster of food companies occupies a special place and is important in making appropriate decisions. Among the various characteristics of the activities of enterprises, attention should be paid to the dynamics of the prices of its shares. This allows you to analyze how the functioning of the business entity itself, and to obtain comparative aspects of such activities in comparison with other companies. In the article, on the example of a number of individual enterprises, a cluster of US food companies is considered. A feature of this consideration is the analysis of the activities of companies with a minimum market capitalization. The work presents a lot of drawings and diagrams. This allows us to understand the course of the study, to consider the activities of medium-sized businesses.Публікація On the Ratio of Futures Prices in the World Markets for Grain Commodities(2023) Bilotserkivskyi, Oleksandr; Stepurina, Svitlana; Lyashenko, VyacheslavGrain products play an important role as a factor in stable economic development. These goods provide food security, security of life support and activities of people. At the same time, the market for grain products is subject to the influence of various destabilizing factors, which affects the price of such products. Generalization of prices for any goods is the price dynamics for the corresponding futures goods. Thus, in order to analyze changes in the market of grain products, it is advisable to study the dynamics of prices for futures for these products. This allows you to understand the dynamics of the formation of a parity price between supply and demand. Such dynamics is formed under the influence of market factors, the impact of destabilizing factors, the conditions for the development of the relevant market segment and the actions of investors. For the corresponding analysis, we use descriptive statistics, which allows us to analyze current trends, identify peaks in changing price dynamics. To conduct a comparative analysis of price dynamics for various grain products, we use the wavelet ideology. Such an ideology makes it possible to obtain wavelet coherence estimates. These estimates contribute to the study of the grain market, the consideration of various investment strategies. The paper presents various graphs and schemes that allow you to repeat experiments and evaluate the results.Публікація Analysis of the dynamics of Europe stock markets development(Fintechalliance LLC, 2023) Serhiienko, Olena; Bril, Mykhailo; Baranova, Valeria; Tatar, Maryna; Bilotserkivskyi, OleksandrThe article proposes a complex of economic and mathematical models of assessment, analysis, and forecasting of the world stock indices development state for effective management of investment flows. The modern concept and strategy of European countries’ stock market development were considered, and the existing methods of diagnosing the stock market development level were analyzed. ARIMA models were built and spectral analysis of the main world indices was carried out. The possible trends in the stock indices development for the future period were analyzed using predictive models. It makes it possible to determine directions for improving the stock market efficiency and investment strategies in modern conditions.The proposed set of models for evaluation, analysis, and forecasting of the world stock indices state can be used to test various trading strategies and to test various hypotheses in relation to the entire stock portfolio of a particular company or to one stock index. The results of the research can be used in the development of theoretical provisions and methodological tools for evaluating the global stock market effectiveness in modern conditions and development trends in local markets.