MAGAZINE  №4 (93) August 2019

AUTHORS MISHCHENKO A. V.IVANOVA A. V. 

CATEGORY  Optimization and mathematical modelling

ABSTRACT

The offered paper continues the research on optimization models of production and finance management in a manufacturing company. Problem setting as well as application of the models with dynamic management of fixed and working capitals are shown on the numerical example of the OAO Rot Front chocolate factory (a publicly held company under the laws of the Russian Federation).

The study is limited to the production plan calculation for only one product family (halvah) with quite a short line. The volume of sales of the product group under consideration in units is significant.

All necessary inputs are defined with using the information provided by the chocolate factory as well as the data of the open sources on the Internet in case of some information lack. The seasonality in the consumption of the chocolate products is denominated in the scheme of work in the factory. All task calculations are executed via Excel Solution Suite in the Microsoft Office Component Solutions.

Except for optimal production programme selection with limited amount of fixed and current capitals, optimal solutions found in dynamic models for OAO Rot Front chocolate factory are evaluated for their stability (robustness) to inflation impact. The change of sale prices for finished goods and purchasing prices for raw materials are taken into account. Moreover, the level of inflation able to cause the reduction of optimal production volume is specified.

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MAGAZINE  №1 (90) February 2019

AUTHORS MISHCHENKO A.V., SOLODOVNIKOV V.V

CATEGORY Optimization and mathematical modelling The uncertainty and risks in supply chains

ABSTRACT

The problem of optimal management of various types of production resources in conditions of uncertainty and risk taking into account reworks is relevant and necessary to ensure the competitiveness of modern domestic industrial enterprises.
The paper deals with dynamic models of management of production resources of the enterprise, which provide maximum profit from the sale of products produced for a certain period of time, taking into account the risk, taking into account waste and reworks on technological operations of the industrial enterprise. The analysis of stability in models of management of production and financial activities of the enterprise is carried out. In conclusion, an example of calculation of the management of production and financial activities of a small enterprise which assemblies system blocks of personal computers is analyzed.
Scientific survey is based on fundamental and applied developments of domestic and foreign scientists in the field of economic theory, management theory, logistics theory and supply chain management, methods of mathematical modeling, system analysis, operations research and expert evaluation methods.
The considered dynamic models of management of production and financial activities of the enterprise allow estimating efficiency of use of production and financial assets of the enterprise in the conditions of uncertainty and risk taking into account waste and rework.

 Electronic version

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MAGAZINE №4(87) August 2018

AUTHORS MISHCHENKO A. V., IVANOVA A. V. 

CATEGORY Optimization and mathematical modelling

 

ABSTRACT

Both restricted development of the economic industrial sector and increase in the number of structural investors require effective management of the material and financial resources of an enterprise in order to reduce its production costs. The proposed work considers optimization models for managing the enterprise’s production and financial activities that make it possible to increase the efficiency of its operation in a dynamic market environment.

In addition to static models of the optimal production program selection with limited amount of fixed and working capital that do not consider the impact of the time factor, dynamic models of the production program optimization are proposed. Last type of models calculates the effect of inflation on the company’s marginal revenue. Impact of inflation on both the selling and purchasing price is in the focus of the paper.

The method to calculate optimal output under lack of inventory and equipment in the static models is based on linear optimization. Meantime, dynamic models are solved by nonlinear optimization. Using the attributes of piecewise constant functions, nonlinear dynamic models with a vector function as a solution is proposed to be transformed into linear programming models. The optimal solutions found in dynamic models are evaluated for its stability to inflation impact.

Application of models with dynamic management of fixed and working capital is shown on the numerical example of the OAO Rot Front chocolate factory (a publicly held company under the laws of the Russian Federation) in the second part of the paper.

 Electronic version

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ISSN 2587-6775

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