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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="edn" pub-id-type="custom">AULTPU</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-16553</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/16553</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Экономика сырьевых отраслей</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Economic Geology</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Search of the Nash equilibrium for a system of two interconnected raw materials and products markets</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Поиск равновесия по Нэшу для системы из двух взаимосвязанных рынков сырья и продукции</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Meshcheryakov</surname>
            <given-names>Anton A.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Мещеряков</surname>
              <given-names>А. А.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Meshcheryakov</surname>
              <given-names>Anton A.</given-names>
            </name>
          </name-alternatives>
          <email>anton.meshcheryakov@skoltech.ru</email>
          <contrib-id contrib-id-type="orcid">0009-0004-7614-0621</contrib-id>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Сколковский институт науки и технологий (Москва, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Skolkovo Institute of Science and Technology (Moscow, Russia)</institution>
          </aff>
        </aff-alternatives>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Khamisov</surname>
            <given-names>Oleg O.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Хамисов</surname>
              <given-names>О. О.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Khamisov</surname>
              <given-names>Oleg O.</given-names>
            </name>
          </name-alternatives>
          <email>o.khamisov@skoltech.ru</email>
          <contrib-id contrib-id-type="orcid">0000-0001-9015-9442</contrib-id>
          <xref ref-type="aff" rid="aff2"/>
        </contrib>
        <aff-alternatives id="aff2">
          <aff>
            <institution xml:lang="ru">Сколковский институт науки и технологий (Москва, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Skolkovo Institute of Science and Technology (Moscow, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2025-07-15">
        <day>15</day>
        <month>07</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>276</volume>
      <issue>1</issue>
      <fpage>129</fpage>
      <lpage>141</lpage>
      <history>
        <date date-type="received" iso-8601-date="2024-07-27">
          <day>27</day>
          <month>07</month>
          <year>2024</year>
        </date>
        <date date-type="accepted" iso-8601-date="2025-04-07">
          <day>07</day>
          <month>04</month>
          <year>2025</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2025-12-29">
          <day>29</day>
          <month>12</month>
          <year>2025</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© Anton A. Meshcheryakov, Oleg O. Khamisov</copyright-statement>
        <copyright-year>2025</copyright-year>
        <copyright-holder xml:lang="ru">А. А. Мещеряков, О. О. Хамисов</copyright-holder>
        <copyright-holder xml:lang="en">Anton A. Meshcheryakov, Oleg O. Khamisov</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/16553">https://pmi.spmi.ru/pmi/article/view/16553</self-uri>
      <abstract xml:lang="ru">
        <p>Исследуется новая модель комплексной экономической системы, которая состоит из двух рынков – сырья и продукции, связанных между собой посредством продажи и переработки сырья в продукцию. Данная модель при достижении рынками равновесного состояния позволяет оценивать товарные потоки и экономическую эффективность каждого производителя сырья или продукции с учетом рыночной конъюнктуры. При такой структуре взаимосвязанных товарных рынков производители продукции на рынке сырья являются покупателями сырья, а на рынке продукции – продавцами. Эта особенность рыночной системы приводит к тому, что функция спроса на сырье задается неявно, и стандартные методы поиска равновесия представляются неэффективными в приложении к данной задаче. С целью поиска равновесного состояния для представленной структуры из взаимосвязанных товарных рынков был разработан алгоритм поиска равновесия по Нэшу, который учитывает стремление каждого рыночного игрока максимизировать свою прибыль с учетом рыночных условий и поведения конкурентов. Благодаря применению методов теории игр и экономического моделирования настоящее исследование дает представление о конкурентной динамике и стратегических взаимодействиях как между игроками в рамках одного товарного рынка с точки зрения конкуренции, так и между самими рынками с точки зрения формирования взаимосвязанного ценообразования. Результаты имеют прикладное значение для разработки рыночных и инвестиционных стратегий предприятий из реальных секторов экономики, программ модернизации производств и оптимизации программ выделения государственных субсидий.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>A new model of an integrated economic system is investigated which consists of two markets – raw materials and products interconnected by selling and processing raw materials into products. When the markets reach an equilibrium state, this model allows estimating the commodity flows and the economic efficiency of each producer of raw materials or products taking into account the market conditions. With such a structure of interconnected commodity markets, producers in the raw materials market are buyers of raw materials, and in the products market – sellers. Due to this feature of the market system the demand function for raw materials is set implicitly, and the standard methods for searching the equilibrium seem ineffective for this problem. In order to find an equilibrium state for the presented structure of interconnected commodity markets, an algorithm for searching the Nash equilibrium was developed, which takes into account the desire of each market player to maximize profits considering the market conditions and the behaviour of competitors. By applying the methods of game theory and economic modelling, this research provides insight into competitive dynamics and strategic interactions both between players within a single commodity market in terms of competition, and between the markets proper in terms of formation of interconnected pricing. The results have practical significance for developing the market and investment strategies for the companies from real sectors of economy, production modernization programs, and optimization of government subsidy programs.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>оптимизация</kwd>
        <kwd>рыночные системы</kwd>
        <kwd>равновесие по Нэшу</kwd>
        <kwd>метод нащупывания</kwd>
        <kwd>моделирование рынков</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>optimization</kwd>
        <kwd>market systems</kwd>
        <kwd>Nash equilibrium</kwd>
        <kwd>tatonnement method</kwd>
        <kwd>market modelling</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
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