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This paper provides a conceptual overview of economists' attempts to learn about the effects of taxes on extractive resources. The emphasis is on research methods and techniques, with no attempt to provide a comprehensive tabulation of previous empirical results or policy conclusions regarding preferred tax instruments or systems. We argue, in fact, that the nature of such conclusions largely depends on the researcher's choice of modeling framework. Many alternative frameworks and approaches have been developed in the literature. Our goal is to describe the differences among them and to note their strengths and limitations.

The article presents a theoretical substantiation for the public component of green finance. The generalization of scientific viewpoints from domestic and foreign economic science regarding the essence and structure of green finance has enabled the distinction of both public and private components within it. The public component of green finance encompasses financial relationships involving the State, which accompany the formation and utilization of financial resources for the implementation of ecological sustainable development goals. Both general and specific characteristics of public green finance are disclosed, along with the principles of their operation, which include imperativeness, strategic orientation, and the alignment of interests (inclusiveness). Particular attention is given to uncovering the main features of the instruments of green finance that public authorities use in the formation and utilization of financial resources for the realization of the ecological component of sustainable development goals. According to the nature of the action, these instruments are classified into fiscal, regulatory, and universal. Financial instruments of public green finance have also been proposed to be distinguished according to the content of operations in which they are involved (when forming or using financial resources), but a characteristic feature of some such instruments (grants, green loans) is their universality. Key features and problematic aspects of environmental taxation, the implementation of a greenhouse gas emissions trading system, and innovative schemes for converting State debt obligations in exchange for funding green projects are characterized. It is substantiated that under wartime conditions, budgetary programs related to the sphere of green finance have not only environmental but also security significance, aimed at reducing Ukraine’s dependence on imported energy resources and maintaining the country’s energy system in a functional state. Prospects for further research on the theoretical substantiation of public green finance lie in examining the external environmental factors that influence the parameters of their development, as well as developing formalized approaches to assess the impact of public finance instruments on the indicators of the country’s ecological development.

The article discusses the determinants of fiscal policy in the times of COVID-19. Most economists share the opinion that fiscal packages are necessary to mitigate the health and economic costs of a pandemic. However, the scale of fiscal intervention and the types of fiscal policy instruments that should be used raise doubts. The aim of the article is to explore the factors determining the size and structure of fiscal packages which have been implemented globally in response to the crisis caused by the COVID-19 pandemic. In addition, attention is drawn to the potential impact of fiscal intervention on public finance sustainability, bearing in mind that most governments have chosen to use fiscal support instruments to enhance consumption and investment following the COVID-19 hit, although the cross-country differences are evident both in the magnitude and composition of fiscal stimulus packages. A descriptive analysis was conducted along with a panel data analysis to examine the determinants of government fiscal support in response to the COVID-19 crisis. The empirical analysis is based on cross-sectional data from the International Monetary Fund, OECD and Eurostat. The sample consists of 40 countries representing advanced and emerging economies. Based on the panel analysis, it was found that the total fiscal stimulus packages depended mainly on the fiscal space. Fiscal intervention in countries with greater tax-collection capacity (such as Germany, United States, United Kingdom and Japan) was greater compared to others. A positive and statistically significant relationship between the average income level and the size of fiscal stimulus was also confirmed. Moreover, it turned out that countries with larger populations and higher fatality rates provided greater fiscal support for the COVID-19 pandemic.The empirical analysis expands the existing knowledge on the determinants of the fiscal policy implemented in response to the COVID-19 crisis under the conditions of low interest rates, when macroeconomic stabilization can only be ensured through fiscal stimulus programs.

High and sustainable growth of gross domestic product with stable inflation is one of the objectives of the most macroeconomic policies both in the world and in Vietnam. Therefore, price stability plays a vital role in assuring GDP growth. In order to stabilize prices, fiscal and monetary policies need to be appropriately managed. The aim of this study is to assess the impact of the monetary and fiscal policies on inflation in Vietnam during the period from 1997 to 2020. This study has applied the vector autoregression (VAR) model along with data gathered from the World Bank and General Statistics Office of Vietnam. The research results indicate that Vietnam’s inflation is positively influenced by a fiscal deficit (2.943), money supply (2.672), government expenditure (8.347), and interest rate (3.187). Among the factors, government expenditure has the biggest influence on inflation. Besides, trade openness (–0.311) also influences inflation, but the effect is negative and negligible. Finally, the policy implications are focused on coordinating fiscal and monetary policies maintaining a moderate level of inflation for economic growth. AcknowledgmentThis article is funded from the funding source of the research: “Solutions to deal with the risk of financial instability from support packages to fight economic recession caused by the covid-19 pandemic” with code B2022-MHN-02 by Vietnam Misnistry of Education and Training.

The Covid-19 pandemic as well as the war in Ukraine represent the biggest hit to the Czech economy since the Great Recession. In the Czech Republic, several tax measures are being used to help economic entities overcome the current crisis and keep their businesses running. One of them is the tax instalment plan. This article aims to identify why the tax instalment plan could be an appropriate fiscal measure in times of economic crisis. The author presents a classical legal instrument in the tax area – the tax instalment plan – and analyses it from an innovative point of view rather than the usual perspective, that is, from the macroeconomic point of view. The article analyses the legal conditions for the use of this instrument in the Czech Republic, points out the difficulties of interpretation in practice and evaluates it in the context of the theoretical background of desirable fiscal crisis measures. The conclusions of the research confirm the hypothesis that this legal instrument is an effective and used tool for facilitating the sustainability of private and public finances in times of crisis. It combines the desirable aspects of both automatic stabilisers and discretionary measures.

The paper analyzes Chile's structural balance fiscal rule in the face of copper price shocks originating in foreign copper demand. It uses a version of the IMF's Global Integrated Monetary and Fiscal Model (GIMF) that includes a copper sector. Two results are obtained. First, Chile's current fiscal rule performs well if the policymaker puts a small weight on output volatility (relative to inflation volatility) in his/her objective function. A more aggressive countercyclical fiscal rule can attain lower output volatility, but there is a trade-off with (somewhat) higher inflation volatility and (much) higher volatility of fiscal variables. Second, given its current stock of government assets, Chile's adoption of a 0.5% surplus target starting in 2008 is desirable from a business cycle perspective. This is because the earlier 1% target would have required significant further asset accumulation that could only have been accomplished at the expense of greater volatility in fiscal instruments and therefore in GDP.

We study the welfare properties of an economy where both monetary and fiscal policy follow simple rules, and where a subset of agents is borrowing constrained. The optimized fiscal rule is far more aggressive than automatic stabilizers, and stabilizes the income of borrowingconstrained agents, rather than output. The optimized monetary rule features super-inertia and a very low coefficient on inflation, which minimizes real wage volatility. The welfare gains of optimizing the fiscal rule are far larger than the welfare gains of optimizing the monetary rule. The preferred fiscal instruments are government spending and transfers targeted to borrowing-constrained agents.