The purpose of the study is to assess the macroeconomic and sectoral consequences for Russia and a number of other countries (EAEU members, the United States and China) from the introduction of trade restrictions by the world's largest economies, motivated by the mitigation of the consequences of the global recession caused by the coronavirus pandemic.The research method and methodology consists in: 1) using various economic models to quantify the changes introduced by the implementation of certain actions of countries under the pretext of overcoming the consequences of the crisis, in order to incorporate these changes into a computable general equilibrium model, calibrated on the basis of a database obtained by collecting and harmonization of statistical data from conflicting sources using a special algorithm for guaranteed data consistency created in the course of work on research and development; and 2) various methods of optimization theory to search for incorrect model closures and inconsistent constraints in the script code arising from both inevitable programming errors and due to the nature of the input data.The research results presented in this report are as follows: 1) a review of the literature on existing methods of solving problems that must be solved within the framework of this study, 2) an analysis of trade in goods and services between regions of interest in the context of the COVID-19 pandemic, 3) a description of the scheme for constructing an input database for CGE modeling of export restrictions motivated by considerations of national security against the background of threats from the coronavirus pandemic is given; from the coronavirus pandemic. The results of these calculations showed a weak impact on the Russian economy (less than 0.5% of GDP) and its food security. For Vietnam, the effects may be more significant (3-4% of GDP). For Brazil, Canada, China and the EU, the macroeconomic effects are also not large, although some of them may have noticeable disruptions in the supply of grain and rice.