The article attempts a theoretical understanding of the socio-economic behavior of economic entities by expanding the interaction and information exchange of economists with other representatives of social Sciences (psychologists and sociologists), which will update the definition of socio-economic policy of the state. Research methods used in this article: review of scientific publications, logic, deduction, induction, comparative analysis of socio-economic changes, descriptive method. As a result of the study of publications on the subject and own observations, it was concluded that through the study of social interactions, it is possible to expand the scientific tools for the study of economic development of economic entities. It is proved that the socio-economic behavior of economic entities is formed due to the structure of preferences and dependence on the institutional environment. The authors came to the conclusion that to study the socio-economic behavior of economic entities should carry out methodologically the study on the impact of social interactions on the behavior of individuals, systematic study of social interaction in different institutional environments and their relation to economic growth, to use a new approach to determine the relationship of economic psychology and social interactions.