Monetary emission estimation in different countries amidst the pandemic with mathematical methods
In a modern market economy, the role of state management in money circulation is extremely large, as it affects such indicators as inflation, capital investments, the filling of budgetary and extra-budgetary funds, etc. Therefore, the issues of monetary regulation, including mathematical modeling of the money supply, are especially relevant in crisis periods. Due to the quarantine imposed worldwide in 2020 caused by coronavirus, all countries have faced a drop in economic indicators, while measures to overcome crisis phenomena may differ from country to country. For comparison, the authors have selected the following countries and associations of states: the USA, Russia, the European Union, China and Japan. In the article, the authors try to estimate the degree of change in the money supply in the countries studied, as well as to compare countries by this indicator with each other, applying mathematical methods. The article also examines the factors influencing the monetary policy of states and draws conclusions about the degree of governments\' freedom in monetary policy to minimize the consequences of the 2020 crisis.