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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">voprecotest</journal-id><journal-title-group><journal-title xml:lang="ru">Вопросы экономики</journal-title><trans-title-group xml:lang="en"><trans-title>Voprosy Ekonomiki</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0042-8736</issn><publisher><publisher-name>Voprosy Ekonomiki, NP</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32609/0042-8736-2009-10-91-106</article-id><article-id custom-type="elpub" pub-id-type="custom">voprecotest-936</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>ЭКОНОМИКА ОТРАСЛЕВЫХ РЫНКОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INDUSTRIAL ORGANIZATION</subject></subj-group></article-categories><title-group><article-title>Конкурентные взаимодействия в отрасли информационных технологий: мировой опыт и Россия</article-title><trans-title-group xml:lang="en"><trans-title>Competitive Interactions in the IT Industry: World Practice and Russia</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>Розанова</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Rozanova</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор экономических наук, профессор</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГУ-ВШЭ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State University - Higher School of Economics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2009</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2009</year></pub-date><volume>0</volume><issue>10</issue><fpage>91</fpage><lpage>106</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Voprosy Ekonomiki, NP, 2009</copyright-statement><copyright-year>2009</copyright-year><copyright-holder xml:lang="ru">Voprosy Ekonomiki, NP</copyright-holder><copyright-holder xml:lang="en">Voprosy Ekonomiki, NP</copyright-holder><license xlink:href="https://www.vopreco.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.vopreco.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.vopreco.ru/jour/article/view/936">https://www.vopreco.ru/jour/article/view/936</self-uri><abstract><p>В статье проанализирована модель, показывающая, что отрасль информационных технологий представляет собой естественную олигополию, конкурентные взаимодействия в которой проявляются на основе вертикальной продуктовой дифференциации в виде числа приложений, степени совместимости различных версий базового продукта, уровня сетевого эффекта. Анализируются особенности ИТ продукта и формы конкуренции в ИТ сфере, а также ситуация на российском рынке ИТ.</p></abstract><trans-abstract xml:lang="en"><p>The article analyzes a model of vertical product differentiation applied to IT area which demonstrates that IT market is a natural oligopoly, the number of applications, the degree of compatibility in basic IT product modifications, the level of network effect being the main criteria of vertical product differentiation. Characteristics of IT products and types of competition in IT sphere are analyzed as well as the situation on the Russian IT market.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>информационные технологии</kwd><kwd>микроэкономический анализ сетевых продуктов</kwd><kwd>конкуренция</kwd><kwd>вертикальная продуктовая дифференциация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>information technology</kwd><kwd>microeconomics of network products</kwd><kwd>competition</kwd><kwd>vertical product differentiation</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">Ахундов Р.О. Лизинг объектов интеллектуальной собственности в США: современный опыт и перспективы // США-Канада: экономика, политика, культура. 2006. № 9.</mixed-citation><mixed-citation xml:lang="en">Ахундов Р.О. 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