The structural components (main) of the diagnosis of the competitiveness of the business structure, supporting the opinion of scientists and enterprise managers, are the competitiveness of the products of the business structure, the concentration of the market in which the business structure functions, as well as the effectiveness of the functioning of the business structure under risk conditions, which includes financial-economic, production and commercial efficiency. It is also stated that information technology is an effective management tool for solving economic problems in the field of management and administration. It was determined that today a relevant and important issue is the need to form new and improve existing provisions (both theoretical and practical) regarding the effectiveness of the use of information technologies in the management of a business structure under risk conditions, with the use of mathematical modeling. In view of this, the purpose of the study is to develop an economic-mathematical model for diagnosing the effectiveness of the use of information technologies in the management of the business structure under risk conditions. Based on the results of the research, the article proposes a new economic-mathematical model, and based on it, a set of parameters, criteria and ratios are formed, which ensure the effective functioning and development of the business structure, taking into account the introduction (rational use) of information technologies in the management of the business structure under risk conditions. The basis of this model is the functional relationship between profits, the level of efficiency of the business structure and business risks. The scientific novelty of the obtained results lies in the improvement of the economic-mathematical model for diagnosing the competitiveness of a business structure, which is based on the functional relationship between profits, risks and the level of efficiency of the business structure, which is one of the structural components of diagnosing the competitiveness of a business structure. This model takes into account an expanded set of economic parameters and factors and, unlike the existing ones, it includes the function of a compromise between the level of efficiency of the business structure and business risks, taking into account the peculiarities, role and significance of the use of information technologies in the management of the business structure. This type of approach makes it possible to reduce the number of inaccurate and inadequate results in the context of optimizing methods of using information technologies for making reasonable and effective management decisions (both current and prospective) in the business structure management system under risk conditions. It is advisable to conduct further research in the direction of studying practical issues regarding the formation of a quality and effective management system of the business structure in conditions of risk and uncertainty.

Effective management system, high competitiveness and investment attractiveness of the enterprise ensure effective development of any enterprise. It is also noted that one of the ways to effectively search for directions for the development of the enterprise management system is the use of managerial diagnostics in the management system, taking into account the diagnostics of the effectiveness of the organizational structure of the enterprise management. It has been determined that today a relevant and important issue is the need to form new and improve existing provisions (both theoretical and practical) regarding the effectiveness of the organizational structure of enterprise management under risk conditions, using mathematical modeling. In view of this, the purpose of the study is to develop an economic-mathematical model for diagnosing the effectiveness of the organizational structure of enterprise management under risk conditions. Based on the results of the research, in the article proposes a new economic-mathematical model and, on its basis, optimization criteria and ratios are formed, that ensure the effective functioning and development of the enterprise, taking into account the characteristics, role and importance of the effectiveness of the organizational structure of enterprise management under risk conditions. The scientific novelty of the obtained results lies in the improvement of the economic-mathematical model for the system of management diagnostics of the enterprise, which is based on the functional connection and compromise function between business risks and the characteristics of the effectiveness of the organizational structure of the enterprise management, as well as the corresponding set of economic values (parameters, criteria) and factors, that ensure the transfer of management information from the primary form to a form convenient for storage, transmission and processing, which will contribute to the quality adoption of management decisions aimed at the effective functioning and development of the enterprise, in view of the the process and result, strategic goals and tactical tasks , which are decided at a specific enterprise. It is advisable to conduct further research in the direction of improving the management diagnostics system of the enterprise in conditions of risk and uncertainty.

One of the most important components of the diagnosis of the competitiveness of production business structures is the systematic analysis and comprehensive assessment of the parameters of the financial-economic, production and commercial efficiency of the business structure under risk conditions. It was determined that today a relevant and important issue is the need to form new and improve existing provisions (both theoretical and practical) regarding planning the development and location of production of a business structure with the optimal distribution of investment resources under risk conditions using mathematical modeling. In view of this, the purpose of the study is to develop an economic-mathematical model for planning the development and placement of production of a business structure with the optimal distribution of investment resources under risk conditions. Based on the results of the research, the article proposed a mathematical model and based on it, a set of criteria and ratios were formed for planning the development and placement of production of a business structure with the optimal distribution of investment resources under risk conditions. At the heart of this model is the functional relationship between profits, investments and risks. Also presented are a set of economic values, parameters and ratios that ensure effective and efficient implementation of the investment policy of the business structure. The scientific novelty of the obtained results lies in the improvement of the economic-mathematical model of the enterprise's investment policy, which is based on the functional relationship between profits, investments and risks. The model takes into account an expanded set of economic parameters and, unlike the existing ones, it takes into account the function of compromise between investments, risks and profit. At the same time, it is proposed to take into account the main provisions and recommendations of the national standard of DSTU ISO/IEC 38500:2016 (ISO/IEC 38500:2015, IDT) «Information technologies. IT management in the organization», when solving this economic problem. This type of approach allows you to reduce the number of inaccurate and inadequate results in the context of the investment policy of the business structure. Further research, based on the study of business operations and economic diagnostics, should be conducted in the direction of studying practical issues regarding the attraction and use of investment resources at the enterprise with the aim of developing new or improving the existing tools for increasing the efficiency and effectiveness of their management (i.e. investment resources), in the conditions risk and uncertainty.

One of the most important components of the diagnosis of the competitiveness of production enterprises is the evaluation of the efficiency of the operation of the enterprise, which includes the analysis and evaluation of the parameters of the effectiveness of the application of modern management methods in the field of production management. It was determined that today a relevant and important issue is the application of models and methods of decision-making and implementation in the field of organization and production management on the basis of the study of operations under risk conditions. In view of this, the purpose of the study is to develop an economic-mathematical model for determining the optimal intensities of using technological methods of production at the enterprise under risk conditions. Based on the results of the study, in the article proposes a mathematical model and, on its basis, formed a set of parameters for determining the optimal intensity of the use of technological methods of production in an enterprise, taking into account risks. In the context of this, a structural scheme of information-computer technology has been developed to simulate the optimal intensity of the use of technological production methods, taking into account risks, which we recommend taking into account in the future when developing and implementing a computer program or corresponding special software for implementing this technology. The scientific novelty of the obtained results lies in the improvement of the economic-mathematical model of the enterprise's resource policy, which is based on the functional relationship between profits and risks. The model takes into account an expanded set of economic parameters and, in contrast to the existing ones, it offers a function of compromise between risks and profit, as well as a structural scheme of computer simulation. The corresponding approach allows to reduce a lot of inaccurate and inadequate results in the context of the resource policy of the enterprise. It is advisable to conduct further research in the direction of studying practical issues regarding the formation and use of the enterprise's production potential in conditions of risk and uncertainty.

industry enterprise under risk conditions. Based on the results of the research, the article proposes a new economic-mathematical model, and based on it, a set of criteria and ratios are formed that ensure the effective functioning and development of the construction industry enterprise, taking into account the peculiarities, role and importance of the effectiveness of controlling the internal business processes of the enterprise under risk conditions. The scientific novelty of the obtained results lies in the improvement of the economic-mathematical model for the system of economic (and/or managerial) diagnostics of the enterprise of the construction industry, which is based on the functional relationship between profits, resource costs, risks and characteristics of the effectiveness of controlling the internal business processes of the enterprise under risk conditions. This type of approach makes it possible to reduce the number of inaccurate and inadequate results in the context of operations research and optimization of enterprise resource management using information technologies, for making reasonable and effective management decisions in the management system of the construction industry enterprise, aimed at the internal business processes of development and the perspective of the enterprise activity, taking into account the process and the result. It is advisable to conduct further research in the direction of improving the mechanism of optimal allocation of resources of the construction industry enterprise in conditions of risk, rapid changes and uncertainty.