Category Archives: Social and economic systems

CALCULATION MODEL OF LEASING PAYMENTS OF THE RENTAL EQUIPMENT

UDC 004.942
DOI:10.26102/2310-6018/2019.25.2.031

A.A. Boyko, V.V. Kukartsev


This article presents a simulation-dynamic model for calculating leasing payments for leased equipment. The model was developed based on the system dynamics method using Powersim Studio tools. In the model shown, the calculations were carried out for financial leasing, regressive payment schedule and the method of minimum deductions. This article presents a simulation-dynamic model for calculating leasing payments for leased equipment. The model was developed based on the system dynamics method using Powersim Studio tools. In the model shown, the calculations were carried out for financial leasing, regressive payment schedule and the method of minimum deductions. As a result of experiments with options, various amounts of leasing payments (depreciation, credit (loan) payments, commissions, total leasing payments, etc.) were obtained. The study conducted allows us to conclude that the simulated-dynamic model constructed is quite universal and on its basis it is possible to conduct a variety of studies concerning various aspects of equipment leasing.

Keywords: leasing, equipment, depreciation, universality, economic and mathematical modeling.

Full text:
BoykoKukartsev_2_19_1.pdf

COGNITIVE MODELING OF RISK MANAGEMENT PROCESSES POS-LOANING

UDC 519.71
doi: 10.26102/2310-6018/2019.25.2.009

N.A. Shchukina, G.I. Goremykina


The purpose of this study is to consider the possibility of applying modern intellectual methods and decision-making technologies to manage complex semi-structured systems. The research methodology is based on the use of a fuzzy cognitive approach, cause-effect relationships analysis, dynamic modeling, stability analysis of the system under consideration, and scenarios analysis. The study proposes a fuzzy cognitive approach to modeling the risk management system of POS-loaning processes in a commercial Bank. The modeling system is represented as a fuzzy oriented weighted multigraph with a pulse effect transmitted through it. The modeling process is implemented in the form of the following stages: goal definition; fuzzy cognitive map construction; impulse processes for dynamic modeling; the situation scenarios analysis and the choice of the best. The developed management system model serves as the basis for the trends analysis in the development of various situations in the POS-loaning segment. It allows to predict and simulate the behavior strategies in response to external stimuli, and to determine the governance trajectory that reduce internal risks processes POS-loaning commercial Bank. Fuzzy cognitive approach is an effective tool to support decision-making in the activities a commercial Bank risk management and can be used to model and analyze the functioning and other poorly structured socio-economic systems.

Keywords: :fuzzy cognitive modeling, fuzzy oriented weighted graph, POS-loaning, risk management system, scenario approach

Full text:
ShchukinaGoremykina_2_19_1.pdf

ANALYSIS OF TOOLS AND AUTOMATION EQUIPMENT FOR ELECTRONIC COMMERCE

UDC 339.138
doi: 10.26102/2310-6018/2019.25.2.003

G.N. Vershinina, Y.I. Dreyzis, O.A. Burunin


E-commerce is a new kind of economic activity in modern Russia. Doing business via the Internet commerce can improve the competitiveness of the company. The article reveals the advantages and disadvantages of Internet commerce for companies, consumers and society. Types of the organization of the Websites for conducting electronic commerce of the enterprises are considered. The existing program complexes for creation of websites of the enterprises and conducting electronic commerce by them are analyzed.
The analysis of the existing approaches to the choice of the automation equipment of electronic commerce on the basis of the carried-out contrastive analysis of different tools, such, for example, as designers of the websites, CMS systems and generators of the websites was made. The technique of the choice of a CMS system for implementation of electronic commerce at the enterprise is considered and the basic concepts of efficiency of electronic commerce are analyzed. The technique of the choice of the automation equipment of electronic commerce, which can be used by the enterprises and the organizations for creation of websites by them (electronic portals) on the organization of electronic sales or provision of services via the Internet, is as a result developed

Keywords: :electronic commerce, tools electronic business, CMS-system, designers of sites.

Full text:
Vershinina2Soavtori_2_19_1.pdf

MODEL OF THE MANAGEMENT PROCESS IN REORGANIZATION OF STRUCTURES OF SOCIAL INSTITUTES OF THE PEOPLE’S REPUBLIC OF BANGLADESH

UDC 004.021
DOI: 10.26102/2310-6018/2019.25.2.001

K.P. Ghosh, M.V. Shcherbakov


This work relates to the task of research and management of the reorganization of the structures of social institutions. The development of science-based management methods for reorganizing the structures of the social institutions of the People’s Republic of Bangladesh is an urgent scientific task. The problem arose as a result of the implementation of social programs aimed at increasing the autonomy of social institutions. To increase the autonomy of social institutions, the following management decisions are highlighted: leave the network structure in the current state; modify the existing network by changing the internal structure of social institutions; add new elements to the network (social institutions). In the process of reviewing the results of the work of an institution or institutions due to unprofitability, it is their or their liquidation and a decision is taken to change the organization’s profile of institutions in order to generate incomes to the network. In this paper, a model has been developed for managing the reorganization of structures of social institutions. As well, a model of the management process for changing the institutional profiles of institutions has been developed and the model algorithm described. The article gives an example of using the management process of reorganizing social society, examines in detail the process of managing changes in the institutional profiles of organizations and obtained a positive result of the proposed process.

Keywords: management process, reorganization, social institutions, the structure of social institutions, change in the profile of the organization.

Full text:
GhoshShcherbakov_2_19_1.pdf

ANALYSIS OF APPROACHES USED FOR PROJECT MANAGEMENT IN ORGANIZATIONS

UDC 519
doi: 10.26102/2310-6018/2019.24.1.039

V.L. Burkovsky, S.A. Barkalov, P.N. Kurochka, M.A. Pinaeva


We consider the problem of optimal (at a cost) development of the area, taking into account the restrictions on the required area of residential premises, and on the area of the land plot allocated for the construction of residential buildings. The problem of optimal development of the area was considered for the case of linear dependence of the construction cost on the number of houses of each type. The results are summarized for the case of concave dependencies of construction costs on the number of houses of each type. We consider such special cases when the amount of living space for all houses is equal or the area required for building a house is also equal for all houses. Initially, an algorithm for solving the problem for the continuous case is considered. In this variant, it is proved that the optimal solution to the problem will be a solution in which from the number of projects included in the production program for only one project the number of houses may be less than the maximum allowed, chosen for reasons of architectural diversity. The conditions are determined when the results of this statement will be valid for the integer solution. To solve the problem, the use of the branch and bound method is proposed. The main difficulty in implementing this scheme is the need to obtain lower bounds for the problem being solved. For this purpose, it is proposed to use the procedure of convexing cost functions directed to the execution of the intended production program.

Keywords: :dichotomous programming method, construction cost function, optimal development model, urban development plan, modification of the branch and bound method, lower estimates.

Full text:
BurkovskySoavtori_1_19_1.pdf

ON THE METHODS OF EVALUATING THE EFFICIENCY OF TARIFF POLICY IN THE REGIONAL SOCIAL SPHERE

UDC 519.24
doi: 10.26102/2310-6018/2019.24.1.013

L. L. Yakovleva

The article proposes a method of evaluating the indexation tariffs and wages strategy effectiveness in the social sphere of the region with a subsidized budget. Using the example of the Zabaykalsky Krai, the main methodological techniques are demonstrated, which allow to form an effective indexation strategy for tariffs and wages in the public sector of the social sphere, taking into account budgetary restrictions and the standard of living indicators planned in the indicative development plan of the region. For this, a simulation model is used, in which the list of regulators explicitly presents elements of the budget and tariff policy. This makes possible to assess the attainability of the region’s population level of provision with social services planned indicators, depending on the chosen policy of indexation of tariffs and wages. On real data, a scenario analysis of the decisions influence to budget constraints and the main parameters of the tariff policy was made. The proposed method expands the tools of effective management and will be useful for evaluating the effectiveness and feasibility of regional strategies and programs.

Keywords: : tariff and salary indexation strategy, simulation model, budget constraints, effective management.

Full text:
Yakovleva_1_19_1.pdf

CALCULATION OF REAL ESTATE RATING BASED ON STANDARDS AND USER PREFERENCES

UDC 004.94:657.922:332.63
doi: 10.26102/2310-6018/2019.24.1.008

I.S. Zelenskiy, D.S. Parygin, T.V. Smirnova


The paper discusses issues of comprehensive assessment of real estate objects consumer properties. Such an assessment is intended to serve as a basis for ranking the market offer for different types of objects. The presented research phase focuses on residential real estate and in particular apartments in apartment buildings. A review and analysis of existing approaches to assessing the quality and comfort of housing is provided. Two main groups of parameters characterizing the internal and local components of the assessment are identified. Analysis of open sources of information about the proposal of apartments conducted using the developed software solutions. On the basis of this analysis, a list of criteria for their evaluation has been formed, variants of values and three types of rating scales have been determined. The degree of importance of each criterion for the final apartment quality indicator is calculated using the method of pairwise comparisons. To account for the influence of negative parameters on the final rating, the mechanism of penalty coefficients was chosen. An own method for rating apartments has been proposed, taking into account both regulatory requirements for ensuring quality of life and user preferences. Testing of the developed method was carried out using the created prototype of the program on five sets of user preferences, demonstrating a change in the indicator of comparative importance in the matrix of pairwise comparisons according to the real estate quality criteria typical for these groups.

Keywords: : real estate object, evaluation criteria, apartment quality assessment, pairwise comparison method, user preferences, rating method.

Full text:
ZelenskiySoavtori_1_19_1.pdf

THE FORMULATION AND SOLUTION OF SOME PROBLEMS OF THE THEORY OF INVESTMENT WITH OCCASIONAL PRIVATE BENEFITS

UDC 330.322
doi: 10.26102/2310-6018/2019.24.1.001

Y.D. Gelrud, O.V. Loginovskiy


The article discusses an alternative investment model with given probabilities of investment success and with a random distribution function of the benefits from them. A number of problems are formulated that most often arise when using this mathematical model. Submitted and solved the problem of finding the threshold for a given contract. As a result, it is shown that it is necessary to establish the value of the investment slightly higher than the threshold from which the entrepreneur evades the contract. It is shown that in exceptional cases, if an entrepreneur is indifferent between evasion and work, he decides to work. The task of finding the maximum amount of debt for a given investment threshold is investigated. It is assumed that the investor knows that if the volume is less than the investment threshold, then the entrepreneur works, and if the amount of debt is greater than the investment volume, then the entrepreneur evades, because the expected return on investment must be positive, and the investor must be insured to agree to the contract. The expected utility of an entrepreneur for a given investment threshold has been determined. The conditions were found under which the contract is optimal for an entrepreneur (subject to the break-even of investors). It is shown that in order to stimulate an entrepreneur to work, the “threshold remuneration” should be quite high (somewhere in the upper half of the expected profitability of the entrepreneur). The situation in which the private benefit is observable and verifiable is investigated. Solved the problem of determining the optimal contract between the entrepreneur and investors (compensation can be made depending on the level of private benefits). The proposed conditions for the adjustment of the contract with increasing benefits. It is shown that the optimal contract for an entrepreneur implies zero return for the investor. An analytical solution of these problems is given taking into account the stated requirements and limitations.

Keywords: : alternative investment model, entrepreneur’s expected utility, investment.

Full text:
GelrudLoginovskiy_1_19_1.pdf

MODELING RISK MANAGEMENT SYSTEM IN RETAIL EXPRESS-LOANING ON THE KEY RISK INDICATORS

UDC 519.71:519.86

G.I. Goremykina, N.A. Shchukina


The banking sector is one of the most important structures of the market economy. In the field of loaning in the context of the digital economy requires the introduction of a new transition principle from rapid response to the risk management integration and strategic planning processes and performance management of the Bank. There has been a tendency to increase the volume of Express loaning. This leads to an increase in the need for the development of formal modeling means and the Express loaning processes analysis. The study purpose is to create and computer implementation of risk management system mathematical model in retail Express loaning. To achieve this goal, the methodology of intelligent modeling is proposed. Fuzzy logic is chosen as a modeling tool, which is successfully used to simulate the management processes of various economic systems in conditions of uncertainty, different from stochastic. The management system model is based on a system of key risk indicators in the banking sector. Computer implementation of the mathematical model was carried out in the MatLab computing environment. The introduction of the system proposed by the authors will allow for detailed monitoring of the Bank’s Express loaning processes and the changes taking place in them and to move from strategic behavior to meaningful and consistent strategic
management.

Keywords: : risks in retail Express loaning, management system, key risk indicators, fuzzy
modeling.

Full text:
GoremykinaShchukina_4_18_1.pdf

A SOFTWARE APPLICATION FOR THE ANALYSIS OF PHASE TRAJECTORY OF DYNAMIC SYSTEM WITH USING OF QUALITATIVE THEORY OF DYNAMICAL SYSTEMS(ON EXAMPLE OF THE ORGANIZATION IN THE MANAGEMENT OF HOUSING AND COMMUNAL SERVICES)

UDC 519.688: 332.87

А.А. Popov, А.О. Kuzmina

The purpose of the article is the enhancement of the instruments for automation of the qualitative research of the dynamic system and forecasting values of the parameters, which characterize organization activities in the economy (particularly in the field of management of housing and communal services). In this article, the problem of automation of the analysis of the phase trajectory of the dynamic system is solved (organization of management of housing and communal services), using the qualitative theory of dynamic systems. The research is relevant due to the insufficient level of automation of qualitative research of dynamic systems in the economy with the economic interpretation of research results. Methods of qualitative theory of dynamic systems, which are used, allow forecasting the state of the dynamic system without numerical simulation (for example, integrating differential system, which is a model of the dynamic system). In the article is presented technique, in accordance with research of the phase trajectory of the dynamic system using the software application, was conducted. Types of phase points in the phase plane in accordance with character of behavior of the phase trajectory plane in the neighborhood of the projection of the phase point were identified. By the example of the phase trajectory analysis, which characterizes activity of organization of management of housing and communal services, opportunities of the software application, building of projection of the phase trajectory into the three planes occurs. It was identified that in the phase planes equilibrium states as «stable node» and «stable focus» are missing, but there are equilibrium states such as «unstable node», «unstable focus» and «saddle». The example of detection of the «field of attraction» of the phase trajectory in phase plane is given. Types of «fields of attraction» were identified and economic interpretation for the «fields of attraction» was given. The main directions for the enhancement of the developed software application functionality are formulated. The materials of the article present the practical value for the experts, who are forecasting state of the organization in economy, and particularly in the housing and communal services.

Keywords: : organization, management, housing and utilities, software application, automation, forecasting, qualitative research, dynamic system, phase trajectory, phase point.

Full text:
PopovKuzmina_4_18_1.pdf