Abstract: The research object is social relations in the sphere of invalid transactions. Special attention is given to the problems of application of the consequences of the declaration of invalidity of a transaction whose goals contradict the fundamentals of law and order and morality. The paper studies different approaches to the idea of the concept of public order in different countries, including those in the context of correlation between the terms “law and order” and “public order”. The author considers such aspects of the topic as the reasons for the application of the article 169 of the Civil Code of the Russian Federation. The study is based on general scientific and special research methods. General scientific methods include the following groups: 1) methods of empirical research; 2) methods used on both empirical and theoretical levels; 3) methods of theoretical research. Special methods include: 1) methods of collection, classification and verification of factual materials: formal-legal method or statutory acts interpretation; 2) methods of factual material processing: normative and dogmatic analysis, comparative jurisprudence and historical-legal method. The author concludes about the necessity to formalize the list of transactions whose goals contradict the fundamentals of law and order or morality; the author offers a new formulation of the first paragraph of the article 169 of the Civil Code of the Russian Federation. 

Abstract: This article is dedicated to a number of questions associated with application of the consequences of invalidity a void contract. The author carefully examines the aspects of application of the general and special consequences of invalidity a void contract. Special attention is given to complications of application of the bilateral restitution. The article also touches upon such consequences as responsibility to compensate for the damage and recovery of a void contract, reviews the German experience of convalidation, suggests the ways of resolving the issues of Russian legislation in this field, as well as explores the questions associated with inadmissibility of restitution and collection of the agreement proceeds. The author’s special contribution lies in the conclusion that often the application of consequences of invalidity of a void contract can be impossible, because practice knows cases when the application of such consequences does not restore the violated right. The author also proposes an alternative for resolution of the problem that pertains to contradictions between the institution of convalidation of the void contracts with the essence of a void contract.