Object - public debt as a social and economic phenomenon of public finances. Purpose - scientific grounding of theoretical and methodological principles of formation and management of public debt of Ukraine. Methods - scientific generalization, grouping, comparison, financial analysis, induction and deduction, historical, systematic and logical, analysis and synthesis, economic modeling, regression and correlation analysis. Results - deepening of the theoretical and methodological foundations and development of practical recommendations for improving the formation and management of public debt. Novelty -scientific and methodical approach to the assessment of the debt security of the state based on three groups of indicators (debt burden, debt sustainability and debt capacity) improved to provide systematic assessment of the debt security in accordance with the specificity of the debt situation in the country; approaches to the assessment of the debt position by determining the integral indicative level of debt security through using the model of variables valuation, which allows us to assess the debt situation in the country; scientific and methodological approaches to management of the public debt developed, in particular, there are arguments pro feasibility of conversion of public debt to assets, reduction of tax rates for economic agents that buy internal governmental bonds, establishment of mutually beneficial mechanisms of repayment of the state guaranteed debt by the companies, repayment of debt in the form of entitlement to sale of goods at a fixed price (commodity scheme), using of the tool of "warrant"; approaches to the study of the relationship between macroeconomic indicators of the country and the national debt got further development through using correlation and regression analysis and private elasticity coefficients with identification of such influence factors as a change in GDP, change in budgetary income and expenditures, level of exchange rate of the national currency, balance of payments, amounts of industrial production and so on; systematization and analysis of reasons of the public debt formation were deepened, which, in contrast to existing approaches, takes into account fiscal, monetary, investment and speculative components of the debt guaranteeing and costs for debt management compensation, allows us to understand the economic nature of public debt better and to develop proposals to address factors causing its occurrence. Classification of debt crises by causes was developed - through distinguishing and study of actual and fictitious crisis. It was introduced in the activities of the Department of debt and international financial policy of the Ministry of Finance of Ukraine, of the National Bank of Ukraine, Ternopil Regional State Administration and to the educational process of Ternopil National Economic University. Scope of use - activities of the Ministry of Economic Development and Trade, Committee on Budget affiliated with Verkhovna Rada of Ukraine.
