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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">woeam</journal-id><journal-title-group><journal-title xml:lang="ru">Мир экономики и управления</journal-title><trans-title-group xml:lang="en"><trans-title>World of Economics and Management</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-0429</issn><issn pub-type="epub">2658-5375</issn><publisher><publisher-name>Новосибирский национальный исследовательский государственный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25205/2542-0429-2023-23-2-52-69</article-id><article-id custom-type="elpub" pub-id-type="custom">woeam-671</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>МИКРОЭКОНОМИЧЕСКИЙ АНАЛИЗ: МЕТОДЫ И РЕЗУЛЬТАТЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICROECONOMIC ANALYSIS: METHODS AND RESULTS</subject></subj-group></article-categories><title-group><article-title>Критерий Коццолино как инструмент стоимостной оценки проектов геологоразведки на нефть и газ с учетом поправки на неприятие риска</article-title><trans-title-group xml:lang="en"><trans-title>The Cozzolino Criterion as a Tool of Oil and Gas Exploration Projects Evaluation Adjusted for Risk Aversion</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7516-5091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалев</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalev</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковалев Сергей Юрьевич, научный сотрудник </p><p>Новосибирск,</p></bio><bio xml:lang="en"><p>Sergey Yu. Kovalev, Researcher, Ph.D. in Economics</p></bio><email xlink:type="simple">kovalev.2009@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7040-3540</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Блам</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Blam</surname><given-names>I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Блам Инна Юрьевна, кандидат экономических наук, старший научный сотрудник</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Inna Yu. Blam, Senior Researcher, Candidate of Economics </p></bio><email xlink:type="simple">inna@ieie.nsc.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Институт экономики и организации промышленного производства СО РАН<country>Россия</country></aff><aff xml:lang="en">Institute of Economics and Industrial Engineering SB RAS<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2023</year></pub-date><volume>23</volume><issue>2</issue><fpage>52</fpage><lpage>69</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ковалев С.Ю., Блам И.Ю., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ковалев С.Ю., Блам И.Ю.</copyright-holder><copyright-holder xml:lang="en">Kovalev S., Blam I.</copyright-holder><license 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://woeam.elpub.ru/jour/article/view/671">https://woeam.elpub.ru/jour/article/view/671</self-uri><abstract><p>Характерное для проектов геологоразведочных работ на нефть и газ сочетание высокого потенциального выигрыша и низкой вероятности успеха приводит к необходимости вводить поправку на неприятие риска при их стоимостной оценке. Среди множества предлагаемых экономической наукой способов стоимостной оценки с поправкой на неприятие риска наиболее удобным представляется критерий Коццолино. Однако практика показала, что использование этого критерия для оценки оптимальной доли участия компании в рискованном предприятии приводит к контринтуитивным рекомендациям: при возрастании величины потенциального выигрыша оптимальная доля сначала возрастает, а затем убывает. Эта проблема вызвала оживленную дискуссию в отраслевой литературе, но ясной и приемлемой процедуры для ее преодоления так и не было предложено, за исключением паллиативных попыток введения в модель дополнительных ограничений либо советов полностью отказаться от применения критерия Коццолино в данном контексте.В статье показано, что замеченный парадоксальный результат поддается объяснению, если выйти за узкие рамки задачи выбора доли участия в проекте и рассмотреть всю ситуацию как частный случай более общей задачи построения инвестиционного портфеля. Научная новизна работы состоит в предложенном авторами разложении формулы определения оптимальной доли участия в проекте на две составные части, аналогичные эффектам замены и дохода. Каждое из слагаемых имеет интуитивно понятный экономический смысл и задает однозначную реакцию зависимой переменной на изменение величины потенциального выигрыша. Разложение позволяет численно оценить сравнительную силу двух разнонаправленных эффектов, тем самым проливая дополнительный свет на природу исходной задачи.</p></abstract><trans-abstract xml:lang="en"><p>Oil and gas exploration projects are typically characterized by a combination of high potential gains and extremely low chances of success, so their appraisal requires some risk aversion discounting. Amongst many risk aversion-adjusted methods of project valuation proposed by economists, the Cozzolino criterion appears to be the most appropriate. However, being applied to the problem of determining the optimum working interest in an exploration venture, this criterion yields an anomalous result such that the optimum working interest first increases and then decreases as the potential gain increases. This problem has inspired an intensive discussion in the oil and gas economics literature but, apart from attempts to overcome the problem by adding extraneous constraints that are somewhat palliative in nature, there has not been proposed a clear and acceptable procedure for overcoming all difficulties.</p><p>In this article, it is shown that the paradoxical result can be explained if one steps outside the narrow limits of the working interest optimization task and view the issue as a part of a broader problem of building an investment portfolio. The authors propose a decomposition of the total impact of the project gain change on the optimum working interest into two components that resemble the substitution effect and the income effect. Both components have intuitively understandable economic sense and unambiguous sign. The resulting sign of the total impact depends upon the relative sizes of the two oppositely directed effects that can be calculated numerically, thus providing a better understanding of the issue.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нефть и газ</kwd><kwd>разведка и добыча</kwd><kwd>геологоразведка</kwd><kwd>экономический риск</kwd><kwd>неприятие риска</kwd><kwd>управление рисками</kwd><kwd>стоимостная оценка проектов</kwd><kwd>стратегическое планирование и управление</kwd><kwd>критерий Коццолино</kwd></kwd-group><kwd-group xml:lang="en"><kwd>upstream oil and gas</kwd><kwd>hydrocarbon exploration</kwd><kwd>uncertainty</kwd><kwd>economic risk</kwd><kwd>•risk aversion</kwd><kwd>project evaluation</kwd><kwd>certainty equivalence</kwd><kwd>Cozzolino</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Статья подготовлена в рамках выполнения работ по плану НИР ИЭОПП СО РАН по проекту «Ресурсные территории Востока России и Арктической зоны: особенности процессов взаимодействия и обеспечения связанности региональных экономик в условиях современных научно-технологических и социальных вызовов» (Регистрационный номер – № 121040100278–8).</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The article was prepared as part of the work under the research plan of the IEOPP SB RAS under the project "Resource territories of the East of Russia and the Arctic zone: features of the processes of interaction and ensuring the connectivity of regional economies in the context of modern scientific, technological and social challenges" (No. 121040100278–8) .</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">LaCosta W.C.P., Milkov A.V. 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