Volodymyr Orlov

General trends of the current stage of development of the world and domestic economies confirm the most important trends of financial systems of the leading countries, including Ukraine. Among them, it is advisable to highlight the following: financial inclusion, formation of an unassailable reputation by financial institutions, reducing the volume of shadow banking, increasing the level of the population’s financial literacy, developing financial technologies, and deepening the financial system. All of this involves increasing the size of financial assets in relation to the size of the economy based on the GDP indicator. Based on the results of generalizing the approaches of scientists to the list of determining factors affecting the development of the country’s financial system, the key role of the level of financial literacy of the population was established. The article presents the total index of financial literacy of the population of individual countries of Europe and the world based on the index components. The development of the financial system in all these areas creates conditions for a gradual transition to the development of a new quality financial ecosystem. The article proposes a definition of the financial ecosystem in the context of established hybrid of real and digital space based on the integration of financial institutions as key players with technology companies, public service providers and other participants. To ensure development, the advantages and disadvantages are specified based on the results of the SWOT analysis, which allowed to systematize the strengths and weaknesses, as well as the opportunities and threats of the financial ecosystem development. Based on the results of the analysis, four basic strategies for restructuring the financial system were developed, which are the basis for proposals for the development of the financial ecosystem and changing the business models of functioning of its subjects in Ukraine.

The consolidated state budget expenditures reflect the condition of performance by a country of its basic functions and allow defining priority directions for the implementation of state policy. Their optimal ratio allows satisfying the interests of citizens, business and society as a whole, and can provide a significant impetus for economic growth. The analysis of state budget expenditures using the example of Ukraine showed that their structure is unbalanced. Therefore, the purpose of the study was to find the necessary balance. The optimization of Ukraine’s state budget expenditures was carried out using the simplex method based on their structure from 2007 to 2019. Since the priorities of Ukraine’s strategic economic and political development are the implementation of the EU standards and norms, the structure of the EU’s state budget expenditures is chosen as a guideline for determining the optimal structure of expenditures. As a result, it is determined that in order to harmonize the structure of the Ukrainian budget expenditures with the approaches implemented in the European Union, minimal changes in public order spending are required. In addition, significant areas of funding include healthcare, economic activity, social protection and security. At the same time, intergovernmental transfers need to be significantly reduced, the amount of which should be revised after the completion of the financial decentralization reform.

The priority task for ensuring the economic security of a country, which is especially noticeable in the rapidly changing conditions of the contemporary global world, is to forecast challenges and threats. Economic security is one of the necessary conditions for state development, which provides guidelines for making major social and economic decisions. There are a few studies on the determinants of the economic security and no data about security determinants that are required to monitor it. The study aims to identify possible links between leading determinants of the economic security. For this purpose, on the example of Ukraine, causal links between the formation of real GDP (as the leading determinant that characterizes the economic security of the state), 11 determinants that indicate the level of international economic development, and 6 determinants of social development for the period 2014–2020 were determined. With a 5% level significance, the impact on the volume of real GDP of 14 determinants of state economic security was noted and specific time lags were defined. Besides, the bilateral causal effect and lack of causal connection between individual determinants were mentioned. Findings are helpful for effective public administration. In addition, active measures are needed to combat corruption, shadow and criminal economy, and state protection of domestic producers operating in the military, food, information, and energy security sectors.

Acknowledgment
Alina Bukhtiarova gratefully acknowledges financial support from the Ministry of Education and Science of Ukraine (0120U100473).

Viewing the development of the stock market in Ukraine, the economy, which world financial organizations characterize as small and open, is largely determined by the trends formed by the global stock markets and leading stock exchanges. Therefore, the study aims to analyze Ukraine’s stock market, the world stock market, stock markets in the regions, and to assess their mutual influence. The study uses the data of the World Federation of Exchanges and National Securities and Stock Market Commission (Ukraine) from 2015 to 2020. Stock market performance forecasts are built using triple exponential smoothing. Based on pairwise correlation coefficients, the existence of a significant dependence in the development of the world stock market on the development of the American stock market was determined. Regarding the Ukrainian stock exchanges, only SE “PFTS” demonstrated its dependence on the US stock market. The results of the regression model based on an exponentially smoothed series of trading volumes in all markets showed that variations in the volume of trading on the world stock market are due to the situation on the US stock markets. Trading volume dynamics on Ukrainian stock exchanges such as SE “PFTS” and SE “Perspektiva” is almost 50% determined by the development of stock markets in the American region. Although Ukraine is geographically located in Europe, the results show a lack of significant links and the impacts of stock markets in this region on the major Ukrainian stock exchanges and the stock market as a whole.

Adjusting the balanced movement of financial flows in the budget process is a vital component of ensuring the functioning of the financial system. This study aims to identify and outline possible areas for improving the management of financial flows in the budget process of Ukraine to regulate structural imbalances of the financial system. With the help of ranking and clustering, the analysis and assessment of local budgets based on indicators that characterize the movement of financial flows was carried out. The used methods made it possible to consider the differences in the formation and direction of budget flows of territorial communities and determine the progress of administrative-territorial units. An assessment of the state of financial flows consolidated in the treasury single account of Ukraine was conducted: the dynamics of balance, the volume of loans and repayments to local budgets, and the Pension Fund of Ukraine were considered. The assessment results made it possible to determine the directions of setting a stable and balanced movement of financial flows and levers to regulate the impact of structural imbalances of the financial system related to the management of cash balances of the treasury single account and increase of its liquidity. The volumes of revenues, expenditures, deficit, and borrowings to the State Budget of Ukraine were estimated to determine the conditions that cause imbalances in the financial system. The directions for timely and complete execution of the decisions by state authorities and local self-governments are outlined.

The military actions in Ukraine have actualized the transformation and revision of existing approaches to assessing the country’s economic security. Financial security, which is considered in this paper through its standard components such as financial sector security, stock market security, debt and budget security, has a significant effect on the formation of economic security. At the same time, digitalization in the financial sector was identified as a new component that provides access to financial resources even in the context of the deployment of hostilities in Ukraine. Therefore, this study assessed the effect of the state of financial security, taking into account the importance of financial digitalization for the economic security of Ukraine.
Based on quarterly data for the period 2015–2021, 42 indicators were analyzed, which were grouped according to the relevant components of financial security, and their integral indicators were determined using the Harrington method. A factor analysis of the formation of economic security was carried out using the principal components analysis, and an integral indicator of a country’s economic security was calculated based on the Kinney multiplicative convolution. The integral indicator of economic security for 2025–2021 doubled and amounted to 0.63 units, which was due to the increased influence of financial digitalization processes, all other components either slowly decreased or were stable. Thus, the reserve of economic security that was formed during this period, including due to the intensive digitalization of the financial sector, allowed Ukraine to survive the first weeks of the war and ensure the functioning of the financial system.

Acknowledgment
Comments from the Editor and anonymous referees have been gratefully acknowledged. Inna Shkolnyk and Yevhenii Kozmenko gratefully acknowledge financial support from the Ministry of Education and Science of Ukraine (0122U000774 “Digitalization and transparency of public, corporate and personal finance: the impact on innovation development and national security”).

The creation of deposit insurance systems in world practice has become a tool for solving problems of maintaining the stability of banking systems, increasing customer confidence in banks and other credit institutions, and preventing cases of mass withdrawal of deposits during economic crises. The paper aims to examine why such an important pillar of the banking union as the European Deposit Insurance Scheme (EDIS) has not yet been implemented. The deadlock in the EDIS negotiations is unprecedented, and the likelihood that the agreement towards this pillar will be reached is rather low. The main reason for its blocking is the existing differences of interests between the main actors, and as a consequence, it makes the progress towards the completion of this process impossible. This study attempts to structure these interests, and it seems that the necessary tool to help bring them together is the concept of moral hazard. The results obtained confirmed the hypothesis that the main barrier for EDIS introduction is the severe difference of interest between countries that can be potentially major contributors and those that hope to benefit from that. Moreover, one of the arguments for such a delay is that cross-border subsidization leads to the problem when the country with better economic indicators pays for the debts of weaker economies as the costs should be socialized.

The insurance sector plays a critical role in the economy, providing protection and security of the state and influencing its social and economic development. However, having a significant potential for development, the sector cannot fully realize it due to many problems, including its shadowing. Using the method of unprofitable enterprises analysis, which is applied by the Ministry for Development of Economy, Trade and Agriculture of Ukraine to determine the level of the shadow economy, considering the type of economic activity, the level of shadowing of the insurance services sector in Ukraine and its regions in 2013 and 2018 was calculated. The calculation results showed an increase in the shadow level of the insurance services sector both in Ukraine as a whole and in the separate regions. To evaluate the effectiveness of the insurance sector potential, given the calculated level of shadowing, a comprehensive assessment was carried out by standardizing the values of selected indicators characterizing the potential of the insurance sector in the context of Ukraine’s socio-economic development. The indicators of the efficient use of the insurance services sector potential in Ukrainian regions, calculated using an integrated assessment, showed an increase in the efficiency of using the potential of the insurance sector in three out of five analyzed regions. Zaporizhzhia region demonstrated the most significant growth. It has been proven that an increase in the volume of services provided is a key factor in increasing the social and economic efficiency of the insurance sector.

Nowadays, it is necessary to consider the impact of the COVID-19 pandemic on the state of the national economy, in particular on the budget system. This paper examines the essence of budget security and identifies the key threats to budget security in the current context. The methodological aspects of calculating Ukraine’s budget security key indicators (their list, criteria for the use of weighting factors, range of characteristic values of budget security levels) are investigated and their state in 2015–2019 is assessed. The influence of quarantine measures on the level of budget security in Ukraine is determined. Analysis of the current state of budget security and development prospects of Ukraine, determined by the Ministry for Development of Economy, Trade and Agriculture of Ukraine, the International Monetary Fund and the World Bank Group, made it possible to predict Ukraine’s budget security indicators for 2020–2021 and define prospects for changing budget security of Ukraine until 2024. Based on the results of forecasting, the need was identified for planning and implementing urgent anti-crisis measures in the field of managing the country’s budget security, as well as ensuring the consistency of the norms of budget and tax legislation in integration with effective measures to support the socio-economic environment of Ukraine.