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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">INNOVATIVE ECONOMY</journal-id><journal-title-group><journal-title xml:lang="en">INNOVATIVE ECONOMY</journal-title><trans-title-group xml:lang="ru"><trans-title>Инновационная экономика</trans-title></trans-title-group></journal-title-group><issn publication-format="electronic">2413-5607</issn></journal-meta><article-meta><article-id pub-id-type="publisher-id">49618</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">APPLICATION OF THE PRINCIPLES OF SYSTEM APPROACH IN THE ANALYSIS OF EFFICIENCY OF INVESTMENT PROJECTS</article-title><trans-title-group xml:lang="ru"><trans-title>ПРИМЕНЕНИЕ ПРИНЦИПОВ СИСТЕМНОГО ПОДХОДА В АНАЛИЗЕ ЭФФЕКТИВНОСТИ ИНВЕСТИЦИОННЫХ ПРОЕКТОВ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Samuseva</surname><given-names>Tatyana Valentinovna</given-names></name><name xml:lang="ru"><surname>Самусева</surname><given-names>Татьяна Валентиновна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Economic Sciences, Associate Professor of the Department of Enterprise Economics and Entrepreneurship</p></bio><bio xml:lang="ru"><p>К.э.н., доцент кафедры экономики предприятия и предпринимательства РУДН</p></bio><email>samousseva@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-04-10" publication-format="electronic"><day>10</day><month>04</month><year>2026</year></pub-date><volume>3</volume><issue>1</issue><issue-title xml:lang="ru"/><history><date date-type="received" iso-8601-date="2026-04-08"><day>08</day><month>04</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-04-08"><day>08</day><month>04</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, INNOVATIVE ECONOMY</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Инновационная экономика</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">INNOVATIVE ECONOMY</copyright-holder><copyright-holder xml:lang="ru">Инновационная экономика</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.rudn.ru/in-econ/article/view/49618">https://journals.rudn.ru/in-econ/article/view/49618</self-uri><abstract xml:lang="en"><p><italic>In article the problem of the analysis of efficiency of investment projects, with a possibility of the data together of various interests of potential investors, the accounting of difficult predicted changes in external environment in relation to the project, correct reflection of system of the taxation in the conditions of unstable economy is considered. Research of structure of the analysis of social and economic and commercial effectiveness of projects on the basis of calculation of key indicators of efficiency of investment projects is given. The way of a solution in the form of application of the principles of system approach is offered.</italic></p></abstract><trans-abstract xml:lang="ru"><p><italic>В статье рассматривается проблема анализа эффективности инвестиционных проектов, с возможностью сведения воедино различных интересов потенциальных инвесторов, учета трудно прогнозируемых изменений во внешней среде по отношению к проекту, корректного отражения системы налогообложения в условиях нестабильной экономики. Приводится исследование структуры анализа социально-экономической и коммерческой эффективности проектов на основе расчета ключевых показателей эффективности инвестиционных проектов. Предлагается способ решения проблемы в виде применения принципов системного подхода.</italic></p></trans-abstract><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Kovalev V.V. Financial Analysis: Methods and Procedures. Moscow: Finance and Statistics, 2001.</mixed-citation><mixed-citation xml:lang="ru">Ковалев В.В. Финансовый анализ: Методы и процедуры. — М.: Финансы и статистика, 2001.</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Lipsits I.V., Kosov V.V. Economic Analysis of Real Investments: Textbook. 3rd edition, revised and expanded. Moscow: Magistr, 2007.</mixed-citation><mixed-citation xml:lang="ru">Липсиц И.В., Косов В.В. 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