UDC 338.24:658.8:338.45
DOI: https://doi.org/10.46783/smart-scm/2022-11-5
JEL Classification: F01, F10, L86, M31.
JEL Classification: F01, F10, L86, M31.
Received: 30 January 2022
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Hryhorak M.Yu. Doctor of Economics, Associate Professor, Senior Research Fellow, Institute of Cybernetics named after V.M.Glushkov National Academy of Sciences of Ukraine
Ukraine - ORCID: 0000-0002-5023-8602
- Web of Science ResearcherID: -
- Scopus author id: 57208222758
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Trushkina N.V. PhD (Economics), Associate Professor, Senior Research Fellow, Regulatory Policy and Entrepreneurship Development Institute of Industrial Economics of the National Academy of Sciences of Ukraine
Ukraine - ORCID: 0000-0002-6741-7738
- Web of Science ResearcherID: C-1441-2018
- Scopus author id: -
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Kitrish K.Yu. PJSC MK Azovstal, Leading Engineer of the Department of Automation Management
Ukraine - ORCID: 0000-0002-5363-7609
- Web of Science ResearcherID: -
- Scopus author id: -
Anotation: The article deepens the theoretical and methodological foundations of the organization of strategic management of industrial enterprises` supply chains sustainability. The evolution of the concept of supply chain management is considered from the standpoint of the institutional theory, as well as the influencing of various factors on its development and integration with the concept of sustainable development is determined. The conceptual and categorical apparatus for researching supply chain sustainability management from the standpoint of network theory and stakeholder theory has been developed.
On the example of a metallurgical enterprise, a system of indicators of sustainable development is proposed and strategic guidelines for three scenarios of sustainable development of an enterprise are determined. These three scenarios take into account the conditions for future development, which are defined as pessimistic, optimistic and such as to ensure balanced sustainable development. Calculations of strategic scenarios for sustainable development were based on the determination of threshold values of indicators for three components: economic (including the quality of corporate governance), environmental and social. Strategic benchmarks have been developed for each of the scenarios.
In the course of the study, it was found that it is inappropriate to calculate the integral sustainability index for the entire supply chain as a whole. Such a calculation has no informative value and is technically practically impossible due to the incomparability of indicators of different business units included in the supply chain. A conclusion is drawn from this that the sustainability of each individual business unit in the chain should be assessed separately.
An organizational and economic mechanism for managing the sustainability of the supply chain in a hybrid form is proposed, which provides for a combination of decentralized development of sustainable development strategies by individual enterprises and organizations within the supply chain and centralized coordination and monitoring of the implementation of strategies by a focal company based on a digital platform. The concept of this mechanism is based on a network approach and provides for the organization of collaboration of participants in the supply chain with the involvement of a wide range of stakeholders.
The directions in which various digital technologies can be applied in managing the sustainability of the supply chain are considered, among which blockchain technology is recognized as the most suitable for use at the moment.
Keywords: supply chain, networks, management, sustainable development, indicators, strategic benchmarks, organizational and economic mechanism, stakeholders, digital platform, digital technologies
Анотація: У статті поглиблено теоретико-методологічні основи організації стратегічного управління сталістю ланцюгів постачань промислових підприємств. Розглянуто еволюцію концепцій управління ланцюгом постачання з позицій інституційної теорії, а також визначено вплив різних факторів на їх розвиток та інтеграцію з концепцією сталого розвитку. Розроблено концептуально-категоріальний апарат дослідження управління сталістю ланцюгів постачань з позицій теорії мереж та теорії зацікавлених сторін.
На прикладі металургійного підприємства запропоновано систему показників сталого розвитку та визначено стратегічні орієнтири для трьох сценаріїв сталого розвитку підприємства. Ці три сценарії враховують умови майбутнього розвитку, які визначаються як песимістичні, оптимістичні та найбільш ймовірні сценарії, що забезпечують збалансований сталий розвиток. Розрахунки стратегічних сценаріїв сталого розвитку базувалися на визначенні порогових значень показників для трьох компонентів: економічної (включаючи якість корпоративного управління), екологічної та соціальної складових. Для кожного зі сценаріїв розроблено стратегічні орієнтири.
У ході дослідження було зроблено висновок про недоцільність розрахунку інтегрального індексу сталості для всього ланцюга постачання в цілому. Такий розрахунок не має інформаційної цінності і технічно практично неможливий через непорівнянність показників різних бізнес-одиниць, що входять до ланцюга поставок. Запропоновано оцінювати сталість бізнес-одиниць в ланцюзі постачання та здійснювати координацію їх стратегій сталого розвитку.
Запропоновано організаційно-економічний механізм управління сталістю ланцюга постачання у гібридній формі, який передбачає поєднання децентралізованої розробки стратегій сталого розвитку окремими підприємствами й організаціями в межах ланцюга постачання та централізованої координації і моніторингу виконання стратегії фокусної компанії на основі цифрової платформи. Концепція цього механізму заснована на мережевому підході і передбачає організацію співпраці учасників ланцюга постачання із залученням широкого кола зацікавлених сторін.
Визначено основні напрямки застосування сучасних цифрових технологій в управлінні сталістю ланцюгів постачань.
Ключові слова: ланцюг постачання, мережі постачання, управління сталістю ланцюга постачання, сталий розвиток промислових підприємств, індикатори сталого розвитку, організаційно-економічний механізм управління сталістю ланцюга
List of references
- Amosha, O.I., Vyshnevskyi, V.P., Zbarazska, L.O. et al. (2014). Promyslovist i promyslova polityka Ukrainy 2013: aktualni trendy, vyklyky, mozhlyvosti [Industry and industrial policy of Ukraine 2013: current trends, challenges, opportunities]. Donetsk: Institute of Industrial Economics of the National Academy of Sciences of Ukraine. (in Ukrainian)
- Amosha, O.I., Bulyeyev, I.P., Zemlyankin, A.I., Zbarazska, L.O., Kharazishvili, Yu.M. et al. (2017). Promyslovist Ukrainy – 2016: stan ta perspektyvy rozvytku [Industry of Ukraine – 2016: state and prospects of development]. Kyiv: Institute of Industrial Economics of the NAS of Ukraine. (in Ukrainian)
- Danylyshyn, B. (2017). Pidvyshchennia konkurentospromozhnosti ukrainskoi ekonomiky ye odnym z kompleksnykh naslidkiv intehratsii v yevropeiskyi ekonomichnyi prostir [Increasing the competitiveness of the Ukrainian economy is one of the complex consequences of integration into the European economic space]. Retrieved from: http://www.me.gov.ua/ control/uk/publish/article?art_id=145668&cat_id=38461 (Last access: 06.12.2021). (in Ukrainian)
- Hrishnova, O.A., Kharazishvili, Yu.M. (2019). Demohrafichna bezpeka Ukrainy: indykatory, riven, zahrozy [Demographic security of Ukraine: indicators, level, threats]. Demography and social economy, 1(21), 9-23. https://doi.org/10.15407/dse2019.02.065. (in Ukrainian)
- Kasych, A.O., Hlushchenko, D.O. (2016). Teoretychni ta praktychni aspekty upravlinnia konkurentospromozhnistiu pidpryiemstva [Theoretical and practical aspects of enterprise competitiveness management]. Economy and state, 11, 65-70. (in Ukrainian)
- Kharazishvili, Yu.M. (2019). Systemna bezpeka staloho rozvytku: instrumentarii otsinky, rezervy ta stratehichni stsenarii realizatsii [System security of sustainable development: assessment tools, reserves and strategic implementation scenarios]. Kyiv: Institute of Industrial Economics of the NAS of Ukraine. (in Ukrainian)
- Kroll, C., Warchold, A., Pradhan, P. (2019). Sustainable Development Goals (SDGs): Are we successful in turning trade-offs into synergies? Palgrave Communications, 5(140), https://doi.org/10.1057/s41599-019-0335-5.
- Lyakh, O.V. (2018). Zavdannia promyslovoi polityky Ukrainy v umovakh tsyfrovoi transformatsii [Tasks of industrial policy of Ukraine in the conditions of digital transformation]. Bulletin of Kamyanets-Podilsky National University named after Ivan Ogienko. Economic sciences, 13, 73-81. (in Ukrainian)
- Kharazishvili, Yu.M., Lyashenko, V.I. (2017). Problemy otsinky ta intehralni indeksy staloho rozvytku promyslovosti Ukrainy z pozytsii ekonomichnoi bezpeky [Evaluation problems and integrated indices of sustainable development of Ukrainian industry from the standpoint of economic security]. Economy of Ukraine, 2, 3-23. (in Ukrainian)
- Murphy, K. (2012). The social pillar of sustainable development: a literature review and framework for policy analysis. Sustainability: Science, Practice and Policy, 8(1), 15-29. https://doi.org/10.1080/15487733.2012.11908081.
- Myers, D.H. (2020). Sustainability in Business. A Financial Economics Analysis. Palgrave Macmillan, Cham. https://doi.org/10.1007/978-3- 319-96604-5.
- Pohorelov, Yu.S., Bilousova, A.Yu. (2014). Problemno-oriientovanyi pidkhid do pobudovy informatsiinoi pidtrymky pryiniattia stratehichnykh upravlinskykh rishen [Problem-oriented approach to building information support for strategic management decisions]. Scientific Bulletin of PUET. Ser.: Economic Sciences, 3(65), 165-172. (in Ukrainian)
- Sroufe, R. (2017). Integration and organizational change towards sustainability. Journal of Cleaner Production, 162, 315-329. https://doi.org/10.1016/j.jclepro.2017.05.180.
- Unruh, G., et al. (2016). Investing for a sustainable future. MIT Sloan Management Review, Article 57480. Retrieved from: https://sloanreview.mit.edu/projects/investing-for-a-sustainable-future/ (Last access: 27.11.2021).
- Vyshnevskyi, V.P., Kniaziev, S.I. (2018). Yak pidvyshchyty hotovnist promyslovosti Ukrainy do smart-transformatsii [How to increase the readiness of Ukrainian industry for smart transformations]. Science and innovation, 14(4), 55-69. https://doi.org/10.15407/scin14.04.055. (in Ukrainian)
- Zhurovskyi, M.Z. (2006). Stalyi rozvytok u hlobalnomu i rehionalnomu vymirakh: analiz za danymy 2005 [Sustainable development in the global and regional dimensions: analysis according to data from 2005]. Kyiv: NTUU "KPI", VPI VPK "Polytechnic". (in Ukrainian)
- Chopra, S., Meindl, P. (2013). Supply chain management. Strategy, planning, and operation. 5th edition. London: Pearson. Retrieved from: 0132750295.pdf (base-logistique-services.com) (Last access: 09.11.2021).
- Chornopyska, N.V., Shandrivska, O.Ie. (2012). Tendentsii ta perspektyvy rynku lohistychnykh posluh Ukrainy [Trends and prospects of the logistics services market of Ukraine]. Bulletin of the National University "Lviv Polytechnic", 735, 224-249. (in Ukrainian)
- Christopher, M. (2016). Logistics and supply chain management: Strategies for reducing costs and improving service. 5th edition. London: FT Press.
- Chukhrai, N.I., Hirna, O.B. (2007). Formuvannia lantsiuha postavok: pytannia teorii i praktyky [Formation of the supply chain: questions of theory and practice]. Lviv: Intelekt-Zakhid. (in Ukrainian)
- Cooper, M.C., Ellram, L.M., Gardner, J.T., Hanks, A.M. (1997). Meshing multiple alliances. Journal of Business Logistics, 18(1), 67-89.
- Habib, M., Hasan, I. (2019). Supply chain management (SCM) – Is it value addition towards academia? IOP Conference. Series: Materials Science and Engineering, 528, Article 012090. https://doi.org/10.1088/1757-899X/528/1/012090.
- Hirna, O.B. (2020). Lohistyka i lantsiuh postavok: vyklyky pandemii COVID-19 [Logistics and supply chain: the challenges of the COVID-19 pandemic]. Black Sea Economic Studies, 55(1), 88-93. https://doi.org/10.32843/bses.55-14. (in Ukrainian)
- Hugos, M. Essentials of Supply Chain Management. 4th edition. New York: John Wiley & Sons, Inc., 2018. Retrieved from: https://mynotesonsystemicthinking. files.wordpress.com/20n/02/essentials-of-supply-chain-management.pdf (Last access: 18.12.2021).
- Kolodizieva, T.O. (2015). Vyznachennia lantsiuhiv postavok ta yikhnia rol u pidvyshchenni efektyvnosti lohistychnoi diialnosti pidpryiemstv [Definition of supply chains and their role in improving the efficiency of logistics activities of enterprises]. Problems of Economy, 2, 133-139. (in Ukrainian)
- Krykavskyi, Ye.V. (2013). Nova paradyhma lohistyky: stratehichnyi status [New paradigm of logistics: strategic status]. Scientific works of DonNTU. Ser.: Economic Sciences, 4(46), 240-247. (in Ukrainian)
- Krykavskyi, Ye.V., Patora-Vysotska, Z. (2015). Lantsiuh vartosti Portera (konstruktsiia, dekonstruktsiia, rekonstruktsiia) ta upravlinnia za tsinnostiamy [Porter's value chain (construction, deconstruction, reconstruction) and value management]. Marketing and innovation management, 2, 121-130. (in Ukrainian)
- Lambert, D.M. (Ed.). (2014). Supply Chain Management: Processes, Partnerships, Performance, 4th ed. Tempe: Supply Chain Management Institute. https://doi.org/10.1007/978-3-8349-6515-8_29.
- Mentzer, J. T., DeWitt, W., Keebler, J. S., Min, S., Nix, N. W., Smith, C. D., Zacharia, Z. G. (2001). Defining supply chain management. Journal of Business Logistics, 22(2), 1-25. https://doi.org/10.1002/j.2158- 1592.2001.tb00001.x.
- Min, H. (2015). Essentials of supply chain management. The new business concepts and applications. Pearson FT Press. Retrieved from: https://www.informit.com/articles/ article.aspx?p=2359420&seqNum (Last access: 09.11.2021).
- Seuring, S., Müller, M. (2008). From a literature review to a conceptual framework for sustainable supply chain management. Journal of Cleaner Production, 16(15), 1699-1710.
- Oliver, R.K., Webber, M.D. (1982). Supply chain management: Logistics catches up with strategy. In: M. Christopher (Ed.), Logistics: The Strategic Issues. (pp. 63-85) London: Chapman & Hall.
- Stock, D.R., Lambert, D.M. (2005). Strategic logistics management. 4th ed. Moscow: INFRA-M. (in Russian)
- Wieland, A. (2021). Dancing the supply chain: Toward transformative supply chain management. Journal of Supply Chain Management, 57(1), 58-73. https://doi.org/10.1111/jscm.12248.
- Henderson, J. (2020). The future of global supply chains and sustainable operations. Supply Chain 24/7 blog. September 10. Retrieved from: https://www.supplychain247.com/ article/the_future_of_supply_chains_sustainable_operations/coupa?oly_enc_id=2460E8056434G0G (Last access: 15.10.2021).
- Oelze, N., Brandenburg, M., Jansen, Ch., Warasthe, R. (2018). Applying sustainable supply chain management frameworks to two German case studies. IFAC PapersOnLine, 51(30), 293-296. https://doi.org/10.1016/j.ifacol.2018.11.304.
- Rasool, Y., et al. (2016). Supply chain evolution and green supply chain perspective. International Journal of Economics, Commerce and Management, IV(10), 716-724.
- Fahimnia, B., Sarkis, J., Gunasekaran, A., Farahani, R. (2017). Decision models for sustainable supply chain design and management. Annals of Operations Research, 250(2), 277-278. https://doi.org/10.1007/s10479-017- 2428-0.
- Sroufe, R., Talyarkhan, V. (2018). Driving supply chains toward sustainability. Inside Supply Management, 29(2), 23-27.
- Zimon, D., Tyan, J., Sroufe, R. (2019). Implementing sustainable supply chain management: Reactive, cooperative, and dynamic models. Sustainability, 11, Article 7227. https://doi.org/10.3390/su11247227.
- Fritz, M.M.C., Rauter, R., Baumgartner, R.J., Dentchev, N.A. (2018). A supply chain perspective of stakeholder identification as a tool for responsible policy and decision-making. Environmental Science & Policy, 81, 63-76. https://doi.org/10.1016/ j.envsci.2017.12.011.
- Kache, F., Seuring, S. (2017). Challenges and opportunities of digital information at the intersection of Big Data Analytics and supply chain management. International Journal of Operations and Production Management, 37(1), 10-36. https://doi.org/10.1108/ijopm-02-2015-0078.
- Winkler, H. (2010). Sustainability through the implementation of sustainable supply chain networks. International Journal of Sustainable Economy, 2(3), 293-309. https://doi.org/10.1504/IJSE.2010.033396.
- Schrauf, S., Berttram, P. (2016). Industry 4.0. How digitization makes the supply chain more efficient, agile, and customer-focused. PwC. Retrieved from: https://www.strategyand.pwc.com/gx/en/insights/2016/industry-4-digitization/industry40.pdf (Last access: 22.12.2021).
- Kersten, W. et al. (2017). Trends and strategies in logistics and supply chain management – Digital Transformation Opportunities. Executive Summary. Bundesvereinigung Logistik (BVL) International. Hamburg: DVV Media Group GmbH.
- Shamsuzzoha, A., Ndzibah, E., Kettunen, K. (2020). Data-driven sustainable supply chain through centralized logistics network. Current Research in Environment Sustainability, 2, Article 100013. http://dx.doi.org/10.1016/j.crsust.2020.100013.
- Kuzior, A., Kwilinski, A., Tkachenko, V. (2019). Sustainable development of organizations based on the combinatorial model of artificial intelligence. Entrepreneurship and Sustainability, 7(2), 1353-1376. http://doi.org/10.9770/jesi.2019.7.2(39).
- Marmolejo-Saucedo, J.A., Hartmann, S. (2020). Trends in digitization of the supply chain: A brief literature review. EAI Endorsed Transactions on Energy Web, 7(29). http://dx.doi.org/10.4108/eai.13-7-2018.164113.
- Rana, S.K., Kim, H.-C., Pani, S.K., Rana, S.K., Joo, M.-I., Rana, A.K., Aich, S. (2021). Blockchain-Based Model to Improve the Performance of the Next- Generation Digital Supply Chain. Sustainability, 13, art. No 10008. https://doi.org/10.3390/su131810008.
- Schrauf, S., Berttram, P. (2016). Industry 4.0. How digitization makes the supply chain more efficient, agile, and customer-focused. PwC.
- Zaloznova, Yu., Trushkina, N. (2019). Management of logistic activities as a mechanism for providing sustainable development of enterprises in the digital economy. Virtual Economics, 2(1), 63-80. https://doi.org/10.34021/ve.2019.02.01(4).
- Zaloznova, Yu.S., Trushkina, N.V. (2020). Udoskonalennia orhanizatsii zbutovoi diialnosti vuhledobuvnykh pidpryiemstv Ukrainy v umovakh nestabilnosti popytu: teoriia i praktyka [Improving the organization of sales activities of coal mining enterprises of Ukraine in conditions of demand instability: theory and practice]. Kyiv: Institute of Industrial Economics of the National Academy of Sciences of Ukraine. (in Ukrainian)
- Kwilinski, A., Zaloznova, Yu., Trushkina, N., Rynkevych, N. (2020). Organizational and methodological support for Ukrainian coal enterprises marketing activity improvement. E3S Web of Conferences, 168, Article 00031. https://doi.org/ 10/1051/e3sconf/202016800031.
- Hryhorak, M.Yu. (2017). Intelektualizatsiia rynku lohistychnykh posluh: kontseptsiia, metodolohiia, kompetentnist [Intellectualization of the logistics services market: concept, methodology, competence]. Kyiv: Sik Group Ukraine. (in Ukrainian)
- Kashchena, N., Solokha, D., Trushkina, N., Potemkin, L., Mirkurbanova, R. (2019). Use of multi-agent simulation modeling for predicting the sales of wholesale trade companies. Journal of Management Information and Decision Sciences, 22(4), 483-488.
- Sandiuk, H., Lushpiienko, Yu., Trushkina, N., Tkachenko, I., Kurganskaya, E. (2019). Special Procedures for Electronic Public Procurement. Journal of Legal, Ethical and Regulatory Issues, 22, Special Issue 2. Business laws and legal rights: research and practice. https://www.abacademies.org/articles/special-procedures-for-electronic-public-procurement-1544-0044-22-SI-2-351.pdf.
- Hryhorak, M., Simak, L. (2020). Using the concept of supply chain management in aviation logistics. Logistics and transport, 47-48(3-4), 59-67. https://doi.org/10.26411/978-83-960736-0-0.1-2.
- Hryhorak, M., Popkowski, T., Trushkina, N., Molchanova, K. (2020). Digital transformations of logistics customer service business models. Intellectualization of Logistics and Supply Chain Management, 1, 57-75. https://doi.org/ 10.46783/smart-scm/2020-1-6.
- Hryhorak, M., Kruszynski, M. (2021). Zarzadzanie lancuchem dostaw w logistyce lotniczej. Wroclawskie Wydawnictwo Oswiatowe. https://doi.org/10.23817/2021.11zdosloglot.
- Hryhorak, M., Shevchuk, L. (2021). Efficiency of “lean management” application in business processes management of refrigeration equipment supply chain during the COVID crisis. Intellectualization of Logistics and Supply Chain Management, 5, 40-52. https://doi.org/10.46783/smart-scm/2021-5-3.
- Kwilinski, A., Hryhorak, M., Trushkina, N. (2021). Transformation of the customer relationship management system in the digital economy. In: I. Tatomyr, Z. Kvasnii (Eds.), Artificial intelligence as a basis for the development of the digital economy (pp. 350-360). Praha: OKTAN Print s.r.o.
- Kitrish, E. (2017). The role of supply chain sustainability in an enterprise’s corporate social responsibility strategy. Economic Herald of the Donbas, 4(50), 190-199.
- Trushkina, N.V., Kitrish, K.Yu., Shkryhun, Yu.O. (2020). Tendentsii rozvytku hlobalnykh lantsiuhiv postachan v umovakh COVID-19 [Trends in the development of global supply chains in the context of COVID-19]. Scientific Bulletin of Uzhhorod National University. Ser.: International Economic Relations and the World Economy, 33(2), 82-88. https://doi.org/10.32782/2413-9971/2020-33-35. (in Ukrainian)
- Trushkina, N.V., Kitrish, K.Yu. (2020). Upravlinnia lantsiuhamy postachan u konteksti kontseptsii Industriia 4.0 [Supply chain management in the context of the Industry 4.0 concept]. Efektyvna ekonomika, 12. https://doi.org/10.32702/2307-2105-2020.12.74. (in Ukrainian)
- Kitrish, E.Yu. (2021). Supply Chain Management: Theoretical Aspects. East European Science Journal, 1(65), Part 4, 245-248. (in Russian)
- Kitrish, K. (2021). Assessment of the level of constantly of supply chains of industrial enterprises in Ukraine. Three Seas Economic Journal, 2(3), 22-30. https://doi.org/10.30525/2661-5150.
- Kitrish, K.Yu. (2021). Stalist yak chynnyk upravlinnia lantsiuhamy postachan [Sustainability as a factor in supply chain management]. Market infrastructure, 51, 141-148. https://doi.org/10.32843/infrastruct51-22. (in Ukrainian)
- Trushkina, N., Kitrish, K. (2021). Transformatsiia biznes-modelei lantsiuhiv postachan pidpryiemstv v umovakh tsyfrovoi ekonomiky [Transformation of business models of enterprise supply chains in the digital economy]. Moderní aspekty vědy (pp. 94-113). Česká republika: Mezinárodní Ekonomický Institut s.r.o. (in Ukrainian)
- Hryhorak, M., Dzwigol, H., Trushkina, N., Shkrygun, Yu. (2021). Substantiation of expediency of the complex approach for supply chains management in the COVID-19 conditions. Intellectualization of logistics and Supply Chain Management, 5, 6-25. https://doi.org/10.46783/smart-scm/2021-5-1.
- Kharazishvili, Y., Kwilinski, A., Grishnova, O., Dzwigol, H. (2020). Social Safety of Society for Developing Countries to Meet Sustainable Development Standards: Indicators, Level, Strategic Benchmarks (with Calculations Based on the Case Study of Ukraine). Sustainability, 12(21), 8953. https://doi.org/10.3390/su12218953.
HOW TO QUOTE THIS ARTICLE:
Hryhorak M.Yu., Trushkina N.V., Kitrish K.Yu. (2022) Organizational and economic mechanism of strategic management of sustainability of supply chains of industrial enterprises // Intellectualization of logistics and Supply Chain Management. [Online], vol.11. pp.57-76, available at: https://smart-scm.org/en/journal-11-2022/organizational-and-economic-mechanism-of-strategic-management-of-sustainability-of-supply-chains-of-industrial-enterprises/. DOI: https://doi.org/10.46783/smart-scm/2022-11-5