<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2023-24-2-256-265</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1545</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>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>Об идеальной экономической ситуации – росте капитала и функции потребления в некоторых моделях экономического роста</article-title><trans-title-group xml:lang="en"><trans-title>About the ideal economic situation - the growth of capital and the function of consumption in some models of economic growth</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>Козко</surname><given-names>Артём Иванович</given-names></name><name name-style="western" xml:lang="en"><surname>Kozko</surname><given-names>Artem Ivanovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">prozerpi@yahoo.co.uk</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лужина</surname><given-names>Любовь Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Luzhina</surname><given-names>Lyubov Mikhailovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">lluzhina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попов</surname><given-names>Антон Юрьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>Anton Yurievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">vgchirskii@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чирский</surname><given-names>Владимир Григорьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Chirskii</surname><given-names>Vladimir Grigorievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">vgchirskii@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет им. М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>31</day><month>10</month><year>2023</year></pub-date><volume>24</volume><issue>2</issue><fpage>256</fpage><lpage>265</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г.</copyright-holder><copyright-holder xml:lang="en">Kozko A.I., Luzhina L.M., Popov A.Y., Chirskii V.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://www.chebsbornik.ru/jour/article/view/1545">https://www.chebsbornik.ru/jour/article/view/1545</self-uri><abstract><p>В статье исследуется экономическая модель роста Рамсея — Касса — Купманса. Мы исследовали монотонность функций 𝐶(𝑡) и 𝐾(𝑡) при специальном начальном условии. Наши результаты получены при помощи вспомогательной системы дифференциальных уравнений, которая аналогична исходной системе дифференциальных уравнений, возникающей в случае постоянства стационарной нормы сбережения.</p></abstract><trans-abstract xml:lang="en"><p>The article is devoted to the Ramsey — Kass — Koopmans economic growth model. We investigated the monotonicity of the functions 𝐶(𝑡) and 𝐾(𝑡) under a special initial condition.Our results are obtained using an auxiliary system of differential equations, which is similar to the original system of differential equations arising in the case of constancy of the stationary rate of savings.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>математическая модель экономического роста</kwd><kwd>задача Рамсея — Касса — Купманса</kwd><kwd>монотонность функции сбережения и капитала</kwd><kwd>конкурентные домохозяйства</kwd><kwd>сепаратриса</kwd><kwd>стационарная норма сбережения.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mathematical model</kwd><kwd>Ramsey — Kass — Koopmans problem</kwd><kwd>monotony of the function of saving and capital</kwd><kwd>competitive households</kwd><kwd>stationary savings rate.</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">Acemoglu Daron. The Neoclassical Growth Model. Introduction to Modern Economic Growth // Princeton: Princeton University Press. 2009. pp. 287–326. ISBN 978-0-691-13292-1.</mixed-citation><mixed-citation xml:lang="en">Acemoglu, Daron. 2009, “The Neoclassical Growth Model. Introduction to Modern Economic Growth”, Princeton: Princeton University Press. pp. 287–326. ISBN 978-0-691-13292-1.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">B´enassy Jean-Pascal. The Ramsey Model. Macroeconomic Theory // New York: Oxford University Press. 2011. P. 145–160. ISBN 978-0-19-538771-1.</mixed-citation><mixed-citation xml:lang="en">B´enassy, Jean-Pascal. 2011, “The Ramsey Model. Macroeconomic Theory”, New York: Oxford University Press. pp. 145–160. ISBN 978-0-19-538771-1.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. Метод приближённого решения системы дифференциальных уравнений из модели Рамсея — Касса — Купманса, основанный на решении в квадратурах одного подкласса сходных систем // Чебышевский сборник. 2022;23(4):115-125. https://doi.org/10.22405/2226-8383-2022-23-4-115-125.</mixed-citation><mixed-citation xml:lang="en">Kozko A.I., Luzhina L.M., Popov A.Yu., Chirskii V.G. 2022, “The method of approximate solution of a system of differential equations from the Ramsey–Kass–Koopmans model, based on the solution in quadratures of one subclass of similar systems”, Chebyshevskii Sbornik. vol.23(4), September. pp. 115-125. (In Russ.) https://doi.org/10.22405/2226-8383-2022-23-4-115-125.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. Оптимальная экспонента в задаче Рамсея —Касса —Купманса с логарифмической функцией полезности // Чебышевский сборник. 2019;20(4):197-207. https://doi.org/10.22405/2226-8383-2018-20-4-197-207.</mixed-citation><mixed-citation xml:lang="en">Kozko A.I., Luzhina L.M., Popov A.Yu., Chirskii V.G. 2019, “Optimal exponent in the Ramsey —Kass —Koopmans problem with logarithmic utility function”, Chebyshevskii Sbornik. vol. 20(4), September. pp. 197-207. (In Russ.) https://doi.org/10.22405/2226-8383-2018-20-4-197-207.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. О задаче Рамсея —Касса — Купманса для потребительского выбора // Итоги науки и техники. Современная математика и ее приложения. Тематические обзоры. 2020. Том 182. С. 39–44. DOI: 10.36535/0233-6723-2020-182-39-44</mixed-citation><mixed-citation xml:lang="en">Kozko, A. I., Luzhina, L. M., Popov, A. Yu., Chirskii, V. G. 2020, “On the Ramsey — Kass —Koopmans problem for consumer choice”, Results of science and technology. Modern mathematics and its applications. Thematic review. vol. 182, September, pp. 39-44. (In Russ.) DOI: 10.36535/0233-6723-2020-182-39-44.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. Модель задачи Рамсея —Касса — Купманса // Издательство: Московский педагогический государственный университет (Москва). Классическая и современная геометрия, материалы международной конференции, посвященной 100-летию со дня рождения В. Т. Базылева. под ред. А. В. Царева. Москва. 2019. C. 87-88.</mixed-citation><mixed-citation xml:lang="en">Kozko, A. I., Luzhina, L. M., Popov, A. Yu., Chirskii, V. G. 2019, The model of the problem Ramsey —Kass —Koopmans // Moscow state pedagogical University (Moscow). Classical and modern geometry, materials of the international conference dedicated to the 100th anniversary of V. T. Bazylev. under the editorship of A. V. Tsarev. Moscow. pp. 87-88.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. Оценка необходимого начального экономического ресурса в задаче Рамсея–Касса–Купманса // Чебышевский сборник. 2019.</mixed-citation><mixed-citation xml:lang="en">Kozko A.I., Luzhina L.M., Popov A.Yu., Chirskii V.G. 2019, “Assessment of the necessary initial economic resource in the Ramsey —Kass —Koopmans problem”, Chebyshevskii Sbornik. vol. 20(4), September, pp. 188-196. (In Russ.) https://doi.org/10.22405/2226-8383-2018-20-4-188-196.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Vol 20(4), C. 188-196. https://doi.org/10.22405/2226-8383-2018-20-4-188-196.</mixed-citation><mixed-citation xml:lang="en">Kozko A.I., Luzhina L.M., Popov A.Yu., Chirskii V.G. 2022, “The consumption function in the Ramsey—-Kass—-Koopmans economic growth model in the case of a stationary saving function”, Chebyshevskii Sbornik. vol. 23(1), September, pp. 118-129. (In Russ.) https://doi.org/10.22405/2226-8383-2018-20-4-188-196.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Козко А.И., Лужина Л.М., Попов А.Ю., Чирский В.Г. Функция потребления в модели экономического роста Рамсея — Касса — Купманса в случае стационарности функции сбережения // Чебышевский сборник. 2022. Vol 23(1), C. 118-129. https://doi.org/10.22405/2226-8383-2022-23-1-118-129.</mixed-citation><mixed-citation xml:lang="en">Rahul, Giri. “Growth Model with Endogenous Savings: Ramsey —Cass —Koopmans Model”, 2018, https://gente.itam.mx/rahul.giri/uploads/1/1/3/6/113608/ramsey-cass-koopmans_model.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Rahul Giri. Growth Model with Endogenous Savings: Ramsey —Cass —Koopmans Model // http://ciep.itam.mx/˜rahul.giri/uploads/1/1/3/6/113608/ramsey-cass-koopmans_model.pdf.</mixed-citation><mixed-citation xml:lang="en">Barro, Robert J., Sala-i-Martin, Xavier. 2003, “Economic growth (2nd ed.)”, Massachusetts: MIT Press, ISBN 9780262025539.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Барро Р. Дж., Сала-и-Мартин Х. Экономический рост // М.: БИНОМ. Лаборатория знаний. 2010.</mixed-citation><mixed-citation xml:lang="en">Groth, Christian and Koch, Karl-Josef and Steger, Thomas Michael. 2006, “Rethinking the Concept of Long-Run Economic Growth (April 2006)”, CESifo Working Paper Series, no. 1701. Available at SSRN: https://ssrn.com/abstract=899250.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Groth Christian and Koch Karl-Josef and Steger Thomas Michael. Rethinking the Concept of Long-Run Economic Growth (April 2006) // CESifo Working Paper Series No. 1701. Available at SSRN: https://ssrn.com/abstract=899250.</mixed-citation><mixed-citation xml:lang="en">Groth, Christian and Koch, Karl-Josef and Steger, Thomas Michael. 2010, “When Economic Growth is Less than Exponential”, Economic Theory, vol. 44, no. 2, pp. 213-242.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Groth Christian, Koch Karl-Josef, Steger Thomas Michael. When Economic Growth is Less than Exponential // Economic Theory. Vol. 44, No. 2, 2010.</mixed-citation><mixed-citation xml:lang="en">Groth, C. 2010, “Chapter 10: The Ramsey Model”, Available at: http://web.econ.ku.dk/okocg/VV/VV-2010/Lecture%20notes/Ch7-2010-1.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Groth C. Chapter 10: The Ramsey Model // Available at: http://web.econ.ku.dk/okocg/VV/VV-2010/Lecture%20notes/Ch7-2010-1.pdf, 2010.</mixed-citation><mixed-citation xml:lang="en">Romer, D. 2006, “Advanced Macroeconomics. 3rd ed”, New York: McGraw-Hill/Irwin, pp. 651.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Romer D. Advanced Macroeconomics. 3rd ed. // New York: McGraw-Hill/Irwin. 2006. P. 651.</mixed-citation><mixed-citation xml:lang="en">Robert J. Barro. 1999, “Ramsey Meets Laibson in the Neoclassical Growth Model”, The Quarterly Journal of Economics, Oxford University Press, vol. 114, no. 4, pp. 1125-1152.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Robert J. Barro. Ramsey Meets Laibson in the Neoclassical Growth Model // The Quarterly Journal of Economics, Oxford University Press. 1999. Vol. 114, No 4. P. 1125-1152.</mixed-citation><mixed-citation xml:lang="en">King Robert, G., and Sergio Rebelo. 1993, “Transitional Dynamics and Economic Growth in the Neoclassical Model”, American Economic Review. vol. 83, September, pp. 908-931.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">King Robert G., and Sergio Rebelo. Transitional Dynamics and Economic Growth in the Neoclassical Model // American Economic Review. 1993. Vol. 83, September. P. 908-931.</mixed-citation><mixed-citation xml:lang="en">Pierre-Olivier, Gourinchas. 2014, “Notes for Econ202A: The Ramsey —Cass —Koopmans Model”, UC Berkeley Fall, https://eml.berkeley.edu/ webfac/gourinchas/e202a_f14/Notes_Ramsey_Cass_Koopmans_pog.pdf.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Pierre-Olivier Gourinchas. Notes for Econ202A: The Ramsey —Cass —Koopmans Model // UC Berkeley Fall 2014 https://eml.berkeley.edu/˜webfac/gourinchas/e202a_f14/Notes_Ramsey_Cass_Koopmans_pog.pdf</mixed-citation><mixed-citation xml:lang="en">Eglit Y., Eglite K., Dudin V., Yurchenko E. 2022, “Consumption function and estimation of its parameters from experimental data”, Transport business in Russia. vol. 2, pp. 7-9.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Эглит Я.Я., Эглите К.Я., Дудин В.С., Юрченко Е.А. Функция потребления и оценивание её параметров по экспериментальным данным // Транспортное дело России. 2022. No. 2,</mixed-citation><mixed-citation xml:lang="en">Эглит Я.Я., Эглите К.Я., Дудин В.С., Юрченко Е.А. Функция потребления и оценивание её параметров по экспериментальным данным // Транспортное дело России. 2022. No. 2,</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">С. 7-9. DOI: 10.52375/20728689_2022_2_7.</mixed-citation><mixed-citation xml:lang="en">С. 7-9. DOI: 10.52375/20728689_2022_2_7.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
