The econometric analysis of GDP per capita in the Russian Federation is being given. The number of the departured people from the Russian Federation, nominal average charged wages and exports volume are used as the exogenous variety. The received model of the multiple linear regression is being studied for quality.

Keywords: gross domestic product, GDP per capita, econometrics analysis, multiple linear regression model, endogenous variety, exogenous variety, heteroskedasticity

The article considers the industry diversification of loan portfolios of the largest banks, and the relationship of the loan portfolio of these banks with the GDP of Russia. Built industry-specific scale, identify the most important branches in the field of lending.

Keywords: Loan portfolio, industry diversification, credit risk, structure.

The mathematical models used as an instrument of management by an enterprise are examined in the article. A review is conducted of mathematical models, investigating influence of different factors on the level of production with the use of productive functions. The models of business processes are examined. Advantages and lacks of the indicated models are analysed. Supposition is done that by the actual and effective instrument of management an imitation design that is confirmed by the examples of already existent system-dynamic models of home and foreign researchers can become a modern enterprise. On the basis of analysis of existent theoretical models the applied possibilities of the use of design are demonstrated taking into account the difficult and dynamic structure of co-operation of productive components.

Keywords: modeling, mathematical model, enterprise management, enterprise management tool, efficiency, simulation, economic system

This article examines technological and psychological aspects of data visualization, perception and interpretation of visualizations in decision-making process. Advantages, disadvantages and risks of visualization. Suggests the importance of visual literacy as a part of Managers Resilience and one of the main skills of modern managers.

Keywords: Data visualization, decision-making, visual literacy, manager resilience, information perception process

Results of the theoretical analysis and applied development of the system of communications and sale of production and services of a restaurant network with use of modern IT technologies are given. Results of modeling and design of the multipurpose website which allows to expand production and economic capabilities of a restaurant network are described. SWOT analysis is executed and the main results of design of the multipurpose website and its integration into a control system and business processes of a network of restaurants are briefly presented. Work is performed with financial support of the Ministry of Education and Science of the Russian Federation within the Federal target program "Researches and Development in the Priority Directions of Development of a Scientific and Technological Complex of Russia for 2007 - 2013".

Keywords: communications, organization of advance and sale of production and services, IT technologies, models, modeling, multipurpose website, network of restaurants, organization and management of restaurant, instrument complex

Results of research and design of system of communications and sale of production and services of a restaurant network with use of IT technologies and the multipurpose website providing favorable prospects of preservation of business, its steady growth, diversification, differentiation and customization of products and services are given. The complex of design actions and results of modeling of risk management are described at development and deployment of Internet technologies and the multipurpose website in production and administrative activity of a network of restaurants, design, advance and site operation. Work is performed with financial support of the Ministry of Education and Science of the Russian Federation within the Federal target program "Researches and Development in the Priority Directions of Development of a Scientific and Technological Complex of Russia for 2007 - 2013".

Keywords: organization and management of the project, communications, IT technologies, models, modeling, multipurpose website, network of restaurants, organization and management of restaurant, site advance, instrument complex

The article analyzes one of the basic concepts of a rational economy – the marginal utility. It is shown that the models accurately describe the behavior of the individual, derived from human psychophysics.

Keywords: consumption, total and marginal utility, psychophysics.