Abstract: The subject of the research in this article is the study of the legal nature of preferential rights in the activities of legal entities and the definition of the concept of preferential rights in the activities of legal entities in a narrow and broad sense. The study of pre-emptive rights in the activities of legal entities is carried out on the basis of their correlation with real, binding and secundary rights. The relevance of the research is due to the importance of studying the legal nature of preferential rights in the activities of legal entities and the need to systematize views on understanding the development of preferential rights in the activities of legal entities and, as a result, determining the origins of the legal nature of preferential rights in the activities of legal entities. It is also necessary to note the importance of conducting a comparative analysis of preferential rights in the activities of legal entities with real, binding and second rights. The scientific novelty of the research is determined by the goal itself and the results of the work. In the course of the scientific research, the author systematized the information defining the legal nature of preferential rights in the activities of legal entities, offered his vision of the concept of preferential rights in the activities of legal entities in narrow and broad senses, justified his conclusions; analyzed the content of relations on the implementation of preferential rights in the activities of legal entities with binding, real and second rights, their role and the importance for the institution of preferential rights in the activities of legal entities. The definition of preferential rights in the activities of legal entities is formulated in a narrow and broad sense.

Abstract: The subject of this research is examination of the causes for the emergence of the contractual structure for the supply of goods, as well as the evolution of the development of legal regulation mechanism of the supply agreements in the Russian Empire, Soviet Union, and modern Russia. The study of the supply agreement is conducted in its relation to the purchase and sale agreement. The relevance of this research is substantiated by the importance of knowing the peculiarities of regulation of civil law framework of the supply agreement and the need for systematization of views upon the development of legal regulation mechanism of the supply agreement in different periods and political systems in Russia, thereby dividing all periods of legal regulation of the supply agreement into several stages. The author underlines the importance of comparative analysis of the purchase and sale agreement with the supply agreement throughout the entire time of their coexistence. The author systematizes the information on the development of legal regulation mechanism of the supply agreement; offers the original classification of its evolution consisting of several stages: prerevolutionary, Soviet, and modern; substantiates the formulated conclusions; analyzes the interrelation between the purchase and sale agreement and the supply agreement, as well as their role during each of the highlighted stated of evolution of the legal regulation mechanism of the supply agreement. The article also analyzes the peculiarities of the purchase and sale agreements within the framework of each period under review; determines the status of the purchase and sale agreement, and the degree of its autonomy.