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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">RUDN Journal of Economics</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Economics</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экономика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2329</issn><issn publication-format="electronic">2408-8986</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">21305</article-id><article-id pub-id-type="doi">10.22363/2313-2329-2019-27-1-113-121</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REGIONAL ECONOMY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>РЕГИОНАЛЬНАЯ ЭКОНОМИКА</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">The specificities of the research in the economics’ development of Sevastopol</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности исследования развития экономики Севастополя</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Piskun</surname><given-names>Elena I.</given-names></name><name xml:lang="ru"><surname>Пискун</surname><given-names>Елена Ивановна</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Economics, Associate Professor, Рrofessor of the Department of Finance and Credit</p></bio><bio xml:lang="ru"><p>доктор экономических наук, доцент, профессор кафедры «Финансы и кредит», Институт финансов, экономики и управления</p></bio><email>lenapiskun@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Khokhlov</surname><given-names>Vladimir V.</given-names></name><name xml:lang="ru"><surname>Хохлов</surname><given-names>Владимир Владимирович</given-names></name></name-alternatives><bio xml:lang="en"><p>Cand. Sci. (Tech.), Assistant Professor of the Department of Finance and Credit</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент, доцент кафедры «Финансы и кредит», Институт финансов, экономики и управления</p></bio><email>khokhlov_vv57@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Sevastopol State University</institution></aff><aff><institution xml:lang="ru">Севастопольский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>27</volume><issue>1</issue><issue-title xml:lang="en">VOL 27, NO1 (2019)</issue-title><issue-title xml:lang="ru">ТОМ 27, №1 (2019)</issue-title><fpage>113</fpage><lpage>121</lpage><history><date date-type="received" iso-8601-date="2019-06-19"><day>19</day><month>06</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Piskun E.I., Khokhlov V.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Пискун Е.И., Хохлов В.В.</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="en">Piskun E.I., Khokhlov V.V.</copyright-holder><copyright-holder xml:lang="ru">Пискун Е.И., Хохлов В.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/economics/article/view/21305">https://journals.rudn.ru/economics/article/view/21305</self-uri><abstract xml:lang="en"><p>A comprehensive study of regional processes implies a qualitative analysis of indicators over time, which is necessary not only to identify current trends, but also to make forecasts that are used in the development of regional development strategies and programs. In order to study the development of the city of Sevastopol on the basis of statistical data on the state of the economy in the Ukrainian and Russian periods, as well as determine the possibility of their use for making forecasts, it is necessary to solve the issue of homogeneity of the series of economic indicators. The existing criteria for verifying the homogeneity of data are not applicable to the solution of the issue of compatibility of multidimensional series belonging to different time intervals. The article proposes the use of exploratory factor analysis to solve this problem. However, the lack of statistical data leads to a degeneration of the matrix of pairwise correlations of economic indicators. To obtain estimates of the parameters of the factor model, a generalized inverse matrix is used, which is obtained as a result of a matrix iterative procedure. Exploratory factor models for the Ukrainian and Russian periods of Sevastopol have fundamental differences, and the corresponding multidimensional series cannot be combined for a holistic study of economic processes in the region.</p></abstract><trans-abstract xml:lang="ru"><p>Всестороннее изучение региональных процессов подразумевает качественный анализ показателей в динамике, что необходимо не только для выявления сложившихся тенденций, но и для составления прогнозов, которые используются при разработке стратегий и программ развития регионов. В целях исследования развития Севастополя на основании статистических данных о состоянии экономики в украинский и российский периоды, а также определения возможности их использования для формирования прогнозов, необходимо решить вопрос об однородности рядов экономических показателей. Существующие критерии проверки однородности данных неприменимы к решению вопроса совместимости многомерных рядов, относящихся к разным временным интервалам. В статье предлагается использовать эксплораторный факторный анализ для решения этой проблемы. Однако недостаток статистических данных ведет к вырождению матрицы парных корреляций экономических показателей. Для получения оценок параметров факторной модели используется обобщенная обратная матрица, получаемая в результате матричной итерационной процедуры. Эксплораторные факторные модели для украинского и российского периодов Севастополя имеют принципиальные различия, и соответствующие многомерные ряды не могут быть объединены для целостного исследования экономических процессов в регионе.</p></trans-abstract><kwd-group xml:lang="en"><kwd>city economy</kwd><kwd>region</kwd><kwd>Sevastopol</kwd><kwd>development</kwd><kwd>multidimensional time series</kwd><kwd>exploratory factor model</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>экономика города</kwd><kwd>регион</kwd><kwd>Севастополь</kwd><kwd>развитие</kwd><kwd>многомерные временные ряды</kwd><kwd>эксплораторная факторная модель</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The reported study was funded by RFBR and Government of the Sevastopol according to the research project No. 18-410-920001.</funding-statement><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ и города Севастополя в рамках научного проекта № 18-410-920001.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Argyros I.K. 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