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Публікація Improvement of financial instruments of the agricultural sector and food security efficiency increasing(Economic Research Institute at BAS (Bulgarian Academy of Sciences), 2023) Serhiienko, Olena; Tatar, Maryna; Guryanova, Lidiya; Shapran, Olena; Bril, MykhailoThe methodical toolbox of lending to entities in the agricultural sector provides three levels of hierarchy management interaction – macro, meso and micro levels (state – region – agricultural enterprises) on the bases of the complex usage of economic and mathematical models and which contains six interrelated and sequential blocks was proposed. The method of agricultural enterprises crediting improvement is implemented in accordance with the strategic position of lending to agricultural enterprises through targeted support and the creditworthiness level, which can solve the following problems: observation and evaluation of the financial and economic indicators; classification of enterprises, recognition, and identification of enterprises in terms of creditworthiness; assessment of the differences between classes given dimension enterprises.Публікація Analytical management tools of industrial systems strategic development(2020) Shapran, Evgeniy M.; Sergienko, Olena A.; Gaponenko, Olga E.; Tatar, Maryna S.; Morozova, Nadiia L.The paper studies analytical-applied and structural aspects of strategic management of industrial systems development on the bases of assessment and analysis of the potential of their development, the formation and implementation of strategic alternatives in the conditions of external and internal environmental threats. We propose to consider the analytical-applied and structural modeling tool as a set of scenario models for formation and implementation of business entities development strategies.Публікація Personnel material motivation and its effect on enterprise economic processes(University of national and world economy, 2018) Gaponenko, Olga; Sergienko, Olena; Tatar, MarynaThe indicators system characterizing the personnel financial motivation and enterprises economic processes is improved. These indicators unlike existing fragmentary indicators take into account wages efficiency indicators such as profitability / yield payroll, the cost of wages and wages level (in total production costs) next with the stablished directions of productive resources usage for quantitative and qualitative evaluation of the state of these phenomena at the macro level. The developed methodical approach to the calculation of personnel material payouts involves the determination of additional pay on the bases of proposed labor contribution rate, which takes into account labor costs without the use of invariant scales and size of incentive and compensation payments by a corresponding coefficient whose value depends on value of certain assessment factors, which makes possible to create conditions for wages part objective formation.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.Публікація Applied aspects of proactive modeling of innovative-investment processes of complex hierarchical systems: enterprise–region–state(Ljubljana School of Business, Slovenia, 2020) Sergienko, Olena; Tatar, Maryna; Bilotserkivskyi, Oleksandr; Baranova, ValeriaThe paper proposed a proactive mechanism of innovative activity management of complex hierarchical systems (CHS), consisting of successive stages of assessment, analysis, planning, forecasting and innivative activities regulation at the levels of an enterprise - a region – the state. Specific tasks of the proposed mechanism require model support, in connection with which the author has developed a set of models for the proactive innovation management SYSTEM. The valuation models and analysis of the innovation capacity and innovation outcomes of socio-economic system of a region (SESR), which allow, in contrast to the existing models, to compare the results of innovation activities and innovation potential and to make a conclusion about the effectiveness of the existing potentia use are built. The model of evaluation of innovative projects of business-industrial structures (BIS) efficiency based on the use of fuzzy set theory and methods of multicriteria problems solution, which allow to consider the risks arising at each stage of the innovation life cycle. The set of models of economic evaluation of SESR innovative activities based on panel data, which allows to estimate the resource use efficiency in the implementation of innovative activities and to predict the consequences of managerial decisions on stimulation of innovative activities is proposed. The simulation model scenarios of stimulation of SESR innovative activity, which allowed the simulation of scenarios to stimulate and assess their performance in order to select the best scenario of innovation regional systems according to the criteria of profit maximization, maximizing the number of innovative-active BIS and maximize the gains integrated assessment of SESR innovative activity results are designed. The simulation results allowed to determine the best scenario for promoting regional systems and the state as a whole.Публікація Modeling of factors of production interaction and efficiency of their usage in enterprise competitiveness management(Ткачук А. В., 2017) Sergienko, O. A.; Tatar, M. S.; Golofaieva, I. P.Публікація Diagnosis of Raider Capture to Ensure Business Entities Economic Security in the Conditions of Modern Challenges(University of national and world economy, Sofia, Bulgaria, 2020) Sergienko, Olena; Tatar, Maryna; Bilotserkivskyi, Oleksandr; Stepurina, SvitlanaThe analysis of economic entities interaction for counteraction to raiding is carried out, stages of raiding development in Ukraine and their characteristics are determine, resonant raider attacks in Ukraine during various global challenges and imbalances are analyzed. The aggregation of factors and parameters of threats to economic entities security in relation to raiding counteraction is carried out. The approaches and estimation methods of factors and parameters of raider capture threats are analyzed. The influence of threat parameters on the enterprises raider capture risk is assessed and the influence of parameters which characterize the raiding threats on the q-Tobin index, which characterizes the investment attractiveness, is determined.Публікація Enterprise financial security threats: identification, assessment and forecasting models(2018) Sergienko, O.; Tatar, M. S.Публікація Banks financial security management: modeling tools(Університет банківської справи, 2017) Sergienko, O.; Tatar, M.; Morozova, N.; Galych, R.The article is devoted to the development of the complex of economic and mathematical models to support decision–making on managing commercial banks financial security. Aggregated model of management system of commercial banks financial security is presented. Basic conceptual scheme of the bank’s financial security management is developed. The proposed modern modeling tools on the bases of multivariate, econometric, simulation methods and decision making methods make possible to do integrated complex analysis at all levels of the banking market. The results of research in particular assessment and analysis of the survival and spread of crises in the banking market, the research of the particular bank financial security level dynamics in terms of external and internal factors are the basis for the formation and selection of scenarios of financial security ensuring taking into account the features, opportunities and competitive advantages of each bank. The implementation of the proposed modeling tools of financial security makes possible to improve the efficiency and effectiveness of the commercial bank activity and its financial security level.Публікація Сointegration evaluation tools for enterprises strategic development system upgrading(Університет банківської справи, 2020) Sergienko, O.; Shapran, O.; Tatar, M.; Bilotserkivskyi, Oleksandr ; Druhova, O.The paper proposes tools for improving the strategic management system for assessing the processes dynamics and the level of their intensity and non-stationarity by local resource components of industrial enterprise as indicators of organizational and economic development and forecasting its change, as well as determining the structure of the strategic management system of enterprise development with emphasis on its resource communication component that will improve the efficiency of information exchange in the management process in the current context of increased importance of information resources as important elements that provide business entities competitive advantages. In this paper, the complex of models of research of development dynamics of enterprise activity spheres is built, which unlike the existing ones takes into account the non-stationary character of the behavior of these processes. This complex is based on the methods of multidimensional analysis, econometric modeling, decision-making. This complex contains the following steps: formation of the information sets of the company’s indicators in the main activity spheres; research of development dynamics of enterprise activity spheres on the basis of building of local and complex integral indicator of enterprise development level; simulation of non-stationarity dynamics of activity spheres on the bases of building and analysis of ECM&VAR-models — cointegration and vector autoregressive models; simulation of the enterprise development priorities on the bases of ECM&VAR-models analysis. For improvement of the strategic development management system, a conceptual scheme of the interconnection of processes, tasks, and models was developed, which provides the solution of the following main tasks: factor study of development trends, study of the internal environment and potential for key business factors and its development dynamics and implementation of adequate management decisions for increasing systems activity effectiveness as a whole.