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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestrea</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Российского экономического университета имени Г. В. Плеханова</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik of the Plekhanov Russian University of Economics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2413-2829</issn><issn pub-type="epub">2587-9251</issn><publisher><publisher-name>Plekhanov Russian University of Economics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21686/2413-2829-2015-4-68-73</article-id><article-id custom-type="elpub" pub-id-type="custom">vestrea-63</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИЧЕСКИЕ И ИНСТРУМЕНТАЛЬНЫЕ МЕТОДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATIC AND INSTRUMENTAL METHODS</subject></subj-group></article-categories><title-group><article-title>ВЫЧИСЛИТЕЛЬНО-ЭФФЕКТИВНАЯ БИНОМИАЛЬНАЯ МОДЕЛЬ РАСПРЕДЕЛЕНИЯ ДЕФОЛТОВ</article-title><trans-title-group xml:lang="en"><trans-title>COMPUTER-EFFICIENT BINOMINAL MODEL OF DEFAULT DISTRIBUTION</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданов</surname><given-names>Дмитрий Валериевич</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanov</surname><given-names>Dmitry V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры информационных технологий РЭУ им. Г. В. Плеханова</p><p>117997, Москва, Стремянный пер., д. 36</p></bio><bio xml:lang="en"><p>Post-Graduate Student of the Department for Information Technologies of the PRUE</p><p>36 Stremyanny Lane, Moscow, 117997, Russian Federation</p></bio><email xlink:type="simple">bogdv@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>РЭУ им. Г. В. Плеханова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Plekhanov Russian University of Economics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>06</day><month>09</month><year>2017</year></pub-date><volume>0</volume><issue>4</issue><fpage>68</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Богданов Д.В., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Богданов Д.В.</copyright-holder><copyright-holder xml:lang="en">Bogdanov D.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vest.rea.ru/jour/article/view/63">https://vest.rea.ru/jour/article/view/63</self-uri><abstract><p>В условиях нынешнего финансового кризиса становится особенно актуальным анализ корреляции дефолтов. В статье рассмотрены примеры применения биномиальной модели распределения дефолтов в некоторых частных случаях. Сформулирована и доказана теорема о виде соотношений для решения задачи о нахождении функции распределения вероятностей дефолтов в общем случае. Разработанная методика позволяет получать вектор элементарных вероятностей по известному набору предельных вероятностей дефолта каждой фирмы и предельным парным вероятностям дефолта взаимосвязанных фирм как решение систем линейных и линейно-логарифмических уравнений. Предложены способы упрощения изучаемой математической модели системы. Полученные результаты могут быть использованы как для управления рисками, так и для кредитных деривативов в целом.</p></abstract><trans-abstract xml:lang="en"><p>The analysis of default correlation is especially acute in conditions of the current finance crisis. The article discusses examples of using the binominal model of default distribution in certain cases. The author formulated and proved the equation about types of correlations to solve the task of finding the function of distribution of default possibilities in the general case. This methodology can provide an opportunity to get the vector of elementary possibilities through the known set of max default possibilities of each company and max pair possibilities of default of interconnected companies as a solution for the system of linear and linear-logarithmic model of the system. The author offers ways to simplify the model of the system. The findings can be used both for risk management and credit derivatives in general.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>биномиальная модель</kwd><kwd>корреляция дефолтов</kwd><kwd>торическая модель</kwd><kwd>модель Изинга</kwd><kwd>диверсификация рисков</kwd></kwd-group><kwd-group xml:lang="en"><kwd>binominal model</kwd><kwd>default correlation</kwd><kwd>torical model</kwd><kwd>Ising model</kwd><kwd>risk diversification</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Китова О. В., Колмаков И. Б., Дьяконова Л. П. Система гибридных моделей вариантного краткосрочного прогнозирования показателей социально-экономического развития России // Вестник Российского экономического университета имени Г. В. Плеханова. - 2014. - № 12 (78). - С. 88-103</mixed-citation><mixed-citation xml:lang="en">Kitova O. V., Kolmakov I. B., D'yakonova L. P. 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