Результаты поиска по 'Pareto distribution':
Найдено статей: 2
  1. Lukianchenko P.P., Danilov A.M., Bugaev A.S., Gorbunov E.I., Pashkov R.A., Ilyina P.G., Gadzhimirzayev Sh.M.
    Approach to Estimating the Dynamics of the Industry Consolidation Level
    Computer Research and Modeling, 2023, v. 15, no. 1, pp. 129-140

    In this article we propose a new approach to the analysis of econometric industry parameters for the industry consolidation level. The research is based on the simple industry automatic control model. The state of the industry is measured by quarterly obtained econometric parameters from each industry’s company provided by the tax control regulator. An approach to analysis of the industry, which does not provide for tracking the economy of each company, but explores the parameters of the set of all companies as a whole, is proposed. Quarterly obtained econometric parameters from each industry’s company are Income, Quantity of employers, Taxes, and Income from Software Licenses. The ABC analysis method was modified by ABCD analysis (D — companies with zero-level impact to industry metrics) and used to make the results obtained for different indicators comparable. Pareto charts were formed for the set of econometric indicators.

    To estimate the industry monopolization, the Herfindahl – Hirschman index was calculated for the most sensitive companies metrics. Using the HHI approach, it was proved that COVID-19 does not lead to changes in the monopolization of the Russian IT industry.

    As the most visually obvious approach to the industry visualization, scattering diagrams in combination with the Pareto graph colors were proposed. The affect of the accreditation procedure is clearly observed by scattering diagram in combination with red/black dots for accredited and nonaccredited companies respectively.

    The last reported result is the proposal to use the Licenses End-to-End Product Identification as the market structure control instrument. It is the basis to avoid the multiple accounting of the licenses reselling within the chain of software distribution.

    The results of research could be the basis for future IT industry analysis and simulation on the agent based approach.

    Keywords: Herfindahl – Hirschman index, ABCD analysis, monopolization of IT industry.
  2. Garanina O.S., Romanovsky M.Y.
    Experimental investigation of Russian citizens expenses on new cars and a correspondence to their income
    Computer Research and Modeling, 2012, v. 4, no. 3, pp. 621-629

    The question of distribution of citizens expenses in modern Russia is experimentally investigated. New cars were chosen as representative group of the acquired goods as well as earlier. Results of the analysis of sales of new cars for 2007–2009 are presented below. Main “body” of density of probability to find certain number of cars depending on their price, since some initial price up to ~ k$60, is an exponential distribution. The found feature of distribution (unlike 2003–2005) was an existence of minimum price. For expensive cars (distribution “tail”), the asymptotic form is the Pareto distribution with a hyperbole exponent a little greater, than measured earlier for 2003–2005. The results turned up to be similar to direct measurements of distribution of tax declarations on their size, submitted to the USA in 2004 where exponential distribution of the income of citizens, since some minimum, with some asymptotic in the form of Pareto's distribution also was observed.

    Keywords: new car sales distribution, exponential distribution, Pareto distribution.
    Citations: 3 (RSCI).

Indexed in Scopus

Full-text version of the journal is also available on the web site of the scientific electronic library eLIBRARY.RU

The journal is included in the Russian Science Citation Index

The journal is included in the RSCI

International Interdisciplinary Conference "Mathematics. Computing. Education"

Copyright © 2009–2024 Institute of Computer Science