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Contemporary scientific research and practical experience in the field of investment and construction projects management prove advisability of planning management processes, including key directions such as scope, time and cost management throughout the lifecycle of a real estate asset. Under conditions of construction industry integration into digital environment and active search for innovative and high-tech ways of development, an urgent issue is to select effective digital methods and tools that correspond to each phase of real estate asset lifecycle and ensure interests of each participant of investment and construction project. The aim of the article is to investigate the digital methods of real estate asset lifecycle management. Through methods of analysis and systematization, the authors of the article have identified that internationally known software producers as well as the scientific community and some representatives of construction industry acknowledge the effectiveness of the currently relevant information modelling technologies (BIM); however, full implementation of BIM technologies in Russia is mainly restrained by low interest from most participants of investment and construction projects. Therefore, by applying methods of comparative analysis and statistical assessments, reported effects of BIM implementation, according to the international experience, have been compared with actual results received by Russian companies, which actively use information modelling technologies. In addition, systematization of modern digital methods and tools for real estate assets management in correspondence with aims of each phase of their lifecycle has been carried out within the framework of the research. As a result, factors for encouragement of BIM implementation based on the principles of public-private partnership have been formulated and, in conclusion, respective stimulation measures proposed.

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Abstract. The paper studies the relationship between transaction costs and risk management in the construction projects affecting ecosystem considering economic externalities. Quantitative indicators of the impact of transaction costs on the level of risk in the project are thoroughly investigated. The construction project risk management model based on transaction costs is discussed in detail. Collected and experimental data of the construction project, which has a significant impact on the ecology of the Baikal region in the Russian Federation is analyzed and the uncertainty reduction caused by transaction costs is measured.