Перегляд за Автор "Streimikis, Justas"

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  • Ескіз
    Документ
    Automatic Information System of Risk Assessment for Agricultural Enterprises of Ukraine
    (2019) Nitsenko, Vitalii S.; Mardani, Abbas; Streimikis, Justas; Ishchenko, Mykola; Chaikovsky, Marina; Stoyanova-Koval, Svitlana; Arutiunian, Ruzanna; Ніценко, Віталій Сергійович; Ниценко, Виталий Сергеевич
    An information system (IS) for analyzing, assessing risks and their impact on the economic activity of agribusiness in Ukraine is developed. The Global Administrative Risk Management System can use this information system or its parts as a component. A new method for designing IS for risk analysis and assessment in the sphere of agriculture is suggested. An original mathematical model of such an IP is used. This mathematical model is specifically designed to reduce the IS resources’ expenditures. A significant reduction in the volume of calculations per unit of time has made it possible to significantly simplify IS and to reduce the price of hardware and standard IS software. This makes the information system an affordable budget option for information support of small and medium-sized agricultural enterprises in Ukraine. To create a risk management model, it is suggested to separate the system of management and decision making and the system of risk monitoring. These two systems have different tasks and are implemented by fundamentally different mathematical algorithms. The risks of most agricultural projects have a high degree of uncertainty. Therefore, even the composition of the risks’ set is dynamic. All possible risks are suggested to be passed through the monitoring procedure. To do this, a separate software unit with an autonomous security system should be used. Models of the codomain of risk change are presented where the specified region is a nonstationary scalar or vector field. An improved scheme of designing AIS for analysis and risk assessment in agriculture was suggested, which allowed significantly reducing the IS resources expenditures. Significant decrease in the volume of calculations per unit of time allowed significantly simplifying and cheapening the hardware part of the AIS. This made the use of AIS an affordable budget option for the information support for small and medium-sized farms in Ukraine. The developed AIS for the risks analysis and assessment and of their impact on the economic activity of the agro-enterprise was tested in Odessa and Mykolaiv regions.
  • Ескіз
    Документ
    Criteria for Evaluation of Efficiency of Energy Transformation Based on Renewable Energy Sources
    (2018) Nitsenko, Vitalii S.; Mardani, Abbas; Streimikis, Justas; Shkrabak, Iryna; Klopov, Ivan; Novomlynets, Oleh; Podolska, Olha; Ніценко, Віталій Сергійович; Ниценко, Виталий Сергеевич
    In the context of shortage of natural resources in Ukraine, the problem of evaluating efficiency of the implementation of renewable energy sources (RES) becomes of particular importance and comes in first place, since its solution will reduce the energy dependence of the state. Theoretical, methodological and practical issues of diversification of energy sources and evaluation of their effectiveness have found their development in modern works of domestic and foreign scientists. However, methods proposed by the scientists for evaluating efficiency of the transformation of energy consumption based on RES are purely theoretical and do not fully allow to determine the current state and directions of diversification of energy sources. The research is aimed at improving methodological support and developing criteria for evaluating the efficiency of energy consumption transformation based on RES. The article considers the main methods of evaluating efficiency of involving RES in the energy consumption of the state, region and enterprise. Advantages, drawbacks and perspectives of diversifying energy sources based on RES are shown. The system of criteria for evaluating effectiveness of energy consumption transformation based on RES is proposed. It is based on economic, environmental and social efficiency.
  • Ескіз
    Документ
    Pricing in the Concept of Cognitive Marketing in the Context of Globalization: Theoretical, Methodological and Applied Aspects
    (2019) Nitsenko, Vitalii S.; Chukurna, Olena; Mardani, Abbas; Streimikis, Justas; Gerasymchuk, Nataliia; Golubkova, Iryna; Levinska, Tetyana; Ніценко, Віталій Сергійович; Ниценко, Виталий Сергеевич
    The study used the following general scientific methods of theoretical and empirical research: a systematic approach – to justification for parametric index at set prices based on the additional premium for quality, based on the use of quantitative and qualitative indicators; methods of theoretical generalization – for grouping the principles and functions of prices in the context of the concept of cognitive marketing; the method of dispersion analysis – to detect and assess the price formation dependence not only on quantitative characteristics (material costs), but also on the qualitative characteristics of the product (parametric quality index); the method of correlation-regression analysis – for constructing a regression model of pricing. The main results of the study were to identify the differences in the marketing mix in the context of the concepts of cognitive and traditional marketing. The evolution of cost categories in the concept of cognitive marketing was substantiated. It was proposed the concept of cognitive value. Innovative demand was defined as a new factor influencing pricing. The formation of value through the use of methods for the formation of demand for innovative products was proposed. A new price function and pricing algorithm in the concept of cognitive marketing was substantiated. An approach is proposed that involves the creation of potential demand at the expense of the value already specified by the manufacturer. It was substantiated that the value of the factors of production should be transferred to the value of the goods, which involves taking into account the value of both the material and the intangible component. It is suggested to take into account the parametric quality index when setting the price as an additional price premium. This approach has been tested in the formation of predictive values of the price of products of machine-building enterprises with the help of regression-disaggregated analysis.