Andriy Stavytskyy

Actuality
The concept of output gap plays an important role in traditional macroeconomic theory, applied research and monetary policy.

Goal
The paper reveals analyses of the potential economic development in Ukraine and in some countries of the world under limited information. Thus, the practical goal is to consider the best modelling approach for the possibility to regulate GDP in Ukraine, as it has been experienced in other countries of the world.

Method
The research is realized with the help of economic-mathematical modelling of GDP gap based on the analysis of the production function, statistical methods of distinguishing the trend component, one-dimensional filtration, multidimensional filtration.

Results
Practical importance of the paper includes implementation of methods for estimating potential GDP and the GDP gap, in particular, the authors proposed to use an approach based on the production function for the potential growth of European countries modelling. The model reveals that for the Eurozone countries, in the short term, it is not expected that the economy will reach its potential level. The negative forecast is explained by the fact that the Eurozone has been severely affected by the debt crisis. There has been a significant increase in the gap in production volumes, which in turn led to deflation. Despite the uncertainty in the assessment of potential GDP and GDP gap for Ukraine the multidimensional method provided the best modelling result. Thus, it is disclosed that Ukraine is under the growing wave of the business cycle, but not in the synergy with the EU dynamics.

Strengthening the integration of higher education, research, and innovation is a crucial requirement of time. The entrepreneurial university today is considered and analyzed as a promising model for their combination. The educational and scientific systems of many countries are faced with the task of converging all vertices of the “knowledge triangle.” The problem of Ukrainian educational and scientific system is a necessity to implement the concept of formation of the innovation and entrepreneurial model of a modern university, which will enable the effective implementation of administrative reforms in this field. The article aims to analyze the impact of innovative environmental factors on the development of entrepreneurial universities in Ukraine, based on correlation and panel regression analysis. The method of quantitative analysis (panel regression) is used to formulate the key results of the article. The results show that the growth of government expenditures by 1% leads to an increase in the Global Innovation Index by 0.375 in 4 years. Also, every additional 1% of people working with new technologies increases the level of Global Innovation Index by 0.75 annually. Despite European trends, Ukrainian educational environment does not contribute to the development of innovation and entrepreneurial universities (the education expenditures are ineffective). The research provides a vector for understanding the implementation of the most effective strategies of promising innovation and investment development of education and science in Ukrainian universities, considering their existing potential and contemporary world trends of development.

The COVID-19 has put higher education institutions in a new situation and identified bottlenecks in the financial structure of institutions and education systems in general. However, for Ukrainian universities, this situation can be seen as an opportunity to achieve financial autonomy. This study is devoted to the consideration of a possible tool for the financial autonomy of Ukrainian classical universities, most of which are state-funded. The paper considers the methodology of a possible tool for the accumulation of external financing – the endowment fund. The case analysis and analytical consideration of world practice are applied. As a result, a model for financing the university in its transition to the innovation and entrepreneurship model is proposed as the chain “endowment fund – development of start-ups”. This example can become the basis of the road map for other national HEIs, as well as the practice of wider use in the field of higher education. However, despite most of the national classical universities have declared a course to an innovative development, which further raised the necessity of external funding, top management and general economic situation require more attention. As this transition to a new model of the university is taking place along with the financial stabilization and under economic and social upheavals, the formation of a new culture of online communication is necessary. Thus, the proposed model is the practical guideline of possible decisions but mostly the start-point for further discussion and research.

Acknowledgment
This paper is done in the framework of the grant project “Financial stabilization of classical universities in the context of the global consequences of the COVID-19 pandemic” funded by the National Research Foundation of Ukraine “Science for Human Security and Society” (2020-2021).

The process of world globalization, labor, and academic mobility, the visa-free regime with the EU countries have caused a significant revival of migration processes in Ukraine. However, there is still the research gap in the most informative, and, at the same time, accurate method of the assessment and forecasting of the migration flows. Thus, the object of research is migration processes (mostly emphasizing the emigration flows). The motives, causes of emigration processes, and their relationship with the economic state were analyzed. The impact factors of external labor migration on the economy of the host countries were revealed, particularly the negative and positive impacts of emigration on the socio-economic situation in Ukraine and the migration attitude of Ukrainians were assessed.
The main result of study is further development of the econometric model for forecasting the number of emigrants from Ukraine to other countries in the nearest future. The model considers the factors of minimum wage lavel in Ukraine, the number of open vacancies in the countries of Eastern Europe, and the level of competition for jobs. According to the results of forecasting based on Maple computer algebra system and Microsoft Power BI analytical platform, by the end of 2019, the number of emigrants from Ukraine supposed to be the largest in the last four years and to reach the estimates in the range from 2,444 to 2,550 million people, which may indicate a new third wave of emigration processes.

The paper examines the transparency of public finances, with a specific focus on the transparency of Ukraine’s defense budget. The relevance of this study arises from the ongoing war and the increasing public demand for accountability. The study aims to identify concrete measures to address existing gaps in defense budget transparency. The paper applies a comparative methodology, analyzing the feasibility of implementing Scandinavian transparency practices, particularly from Sweden and Norway, which are known for their advanced budgetary oversight mechanisms.
The study identifies key challenges, including bureaucratic inertia, limited technical capacity, political constraints, and national security concerns. To address these issues, the paper evaluates strategies such as developing digital budget platforms for real-time access to defense expenditures, participatory budgeting, and enhanced institutional accountability. The results indicate that Ukraine could benefit from secure digital platforms for real-time access to defense budget data, targeted legislative amendments to improve oversight, strengthened institutional capacity for in-depth budget reviews, and public consultations on non-sensitive areas of defense spending to foster public trust.
The findings suggest that gradual and context-sensitive improvements in defense budget transparency are both feasible and essential for optimizing resource allocation and strengthening public confidence. By providing a structured approach, this study contributes to the broader discourse on public finance transparency, offering practical recommendations tailored to Ukraine’s specific challenges.

The difference in the GDP levels is crucial for the macroeconomic forecasting to develop adequate and supportive fiscal and monetary policies. Most mismeasurements under current geoeconomics challenges can be explained by the difficulty in predicting recessions and the overestimation of the economy’s potential capacity. The research aims to consider the GDP gap’s effectiveness for the possible forecasting of the monetary policy, particularly the central bank’s interest rate. The study uses quantitative methods, particularly VAR modeling. The VAR model is chosen as a proven useful tool for describing the dynamic behavior of economic time series and forecasting. The data sample is chosen as Eurozone, the United States, and Japan. The similarity is detected on output gaps implementation in the considered states; however, the variety in the responses to the financial crisis is revealed. This difference is due to the different sensitivity of economies on the impact of monetary instruments. In particular, the Japanese economy has a relatively low level of sensitivity to changes in monetary instruments. In terms of the reactions of central banks to the current economic crisis caused by COVID-19, then due to the global lockdown and the incredible decline in economic activity, almost all countries are in a situation of negative GDP gap according the paper’s approach. However, the measures to mitigate it will vary in different states.

Acknowledgment
The paper is done in the framework of scientific faculty research 16КF040-04 “Steady-state security assessment: a new framework for analysis” (2016–2021), Taras Shevchenko National University of Kyiv (Ukraine).