Large public events (forums, championships, contests, olympiads) are events with a large number of spectators and participants, which, as a rule, leads to the generation of a large amount of waste. Mass sporting events are no exception, and when planning them, a special role is assigned to the creation of environmentally friendly waste management system. The subject of the research is the concept of waste management at the upcoming World Junior Ice Hockey Championship in 2023 in Novosibirsk. The article also discusses the types of waste generated in the functional areas of the competition grounds, studied the practice of handling solid waste: possible technologies for utilization and collection. The scheme of waste management at various stages of sports competitions is presented. Reasonable waste management should be based on the following principles: waste minimization, repair and restoration of faulty equipment and inventory, reuse of goods and materials, maximum recycling and composting, minimum burial and storage at landfills. Based on the results of the article, the main methods and recommendations for effective waste management at WJC-2023 were identified

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The textbook deals with the problems of the national economy and social reproduction, the theory of economic equilibrium, the money market and monetary policy, the cyclical development of the economy, inflation, the labor market. Special attention is paid to the issues of public Finance, public debt theory, income distribution and social policy of the state. International economic relations, theoretical models of economic growth, theories of globalization and the formation of a new type of economic system are revealed. Meets the requirements of the Federal state educational standards of higher education of the last generation. For students of economic universities studying in the field of training 38.03.01 "Economics".

The textbook discusses aspects of corporate culture and mission of the restaurant in the hospitality industry and service, as well as features of restaurant service and approaches to assessing its quality; describes the material and technical equipment of the processes of providing services, considers the organization of various types of service, highlights the ethical and aesthetic aspects of the activities of catering and standardization issues. It is made taking into account modern normative legal documents, contains illustrations, tables and examples. It is intended for bachelors studying in the areas of training 19.03.04 "production Technology and catering" and 38.03.02 "Management".

It has been proved that high interregional social differentiation which is understood here as unequal distribution of regional societies according to key indicators of social development, is a source of inner threat to economical security and it impedes Russia's integration into the world economic area. It has been found that in order to group regions according to the level of social development, it is reasonable to use multidimensional analysis (cluster analysis). Three regional clusters (with high, medium and low levels of social development) have been determined and the clusters' composition has been specified. The received data have demonstrated regions' "migration" from the clusters with low social development to the clusters with higher social development and proved positive dynamics in social processes and a tendency towards a reduction of interregional social differentiation in the Russian Federation.