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Adopting blockchain technology to block less sustainable products’ entry in global trade

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  • Cao, Yifan
  • Shen, Bin

Abstract

In this study, we examine how the use of blockchain technology deters less sustainable products’ entry (LSPE) in the cross-border supply chains in which the entrant produces less sustainable products and enters into the incumbent’s market. We identify that when the blockchain adoption cost exceeds a threshold, the entry can be blocked by mandatory blockchain adoption and the incumbent enjoys the monopoly position; when the blockchain adoption cost falls into an intermediate range, deterrence needs not only the use of blockchain technology but also price distortion by the incumbent; when the blockchain adoption cost is sufficiently low, the incumbent must compete with the entrant because blockchain technology is no longer effective for deterrence. Moreover, we examine how government intervention (tariff or subsidy) affects LSPE and find that both tariff and subsidy schemes can enhance the value of adopting blockchain technology to prevent LSPE. If the blockchain adoption cost is moderate, then levying tariffs on LSPE can achieve an economic and environment-dominating outcome, but the subsidy scheme cannot. Our findings provide managerial insights for cross-border supply chain managers and offer guidance to policy makers who design trade policies.

Suggested Citation

  • Cao, Yifan & Shen, Bin, 2022. "Adopting blockchain technology to block less sustainable products’ entry in global trade," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 161(C).
  • Handle: RePEc:eee:transe:v:161:y:2022:i:c:s1366554522000874
    DOI: 10.1016/j.tre.2022.102695
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    as
    1. Fan, Zhi-Ping & Cao, Yue & Huang, Chun-Yong & Li, Yongli, 2020. "Pricing strategies of domestic and imported electric vehicle manufacturers and the design of government subsidy and tariff policies," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 143(C).
    2. Song, Shuang & Govindan, Kannan & Xu, Lei & Du, Peng & Qiao, Xiaojiao, 2017. "Capacity and production planning with carbon emission constraints," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 97(C), pages 132-150.
    3. Niu, Baozhuang & Mu, Zihao & Cao, Bin & Gao, Jie, 2021. "Should multinational firms implement blockchain to provide quality verification?," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 145(C).
    4. Wenqiang Xiao & Vernon N. Hsu & Qiaohai (Joice) Hu, 2015. "Manufacturing Capacity Decisions with Demand Uncertainty and Tax Cross-Crediting," Manufacturing & Service Operations Management, INFORMS, vol. 17(3), pages 384-398, July.
    5. Volodymyr Babich & Ruben Lobel & Şafak Yücel, 2020. "Promoting Solar Panel Investments: Feed-in-Tariff vs. Tax-Rebate Policies," Manufacturing & Service Operations Management, INFORMS, vol. 22(6), pages 1148-1164, November.
    6. Duygu Akkaya & Kostas Bimpikis & Hau Lee, 2021. "Government Interventions to Promote Agricultural Innovation," Manufacturing & Service Operations Management, INFORMS, vol. 23(2), pages 437-452, March.
    7. Fosso Wamba, Samuel & Queiroz, Maciel M. & Trinchera, Laura, 2020. "Dynamics between blockchain adoption determinants and supply chain performance: An empirical investigation," International Journal of Production Economics, Elsevier, vol. 229(C).
    8. Bin Shen & Yifan Cao & Xiaoyan Xu, 2020. "Product line design and quality differentiation for green and non-green products in a supply chain," International Journal of Production Research, Taylor & Francis Journals, vol. 58(1), pages 148-164, January.
    9. Fang, Yuan & Yu, Yugang & Shi, Ye & Liu, Jie, 2020. "The effect of carbon tariffs on global emission control: A global supply chain model," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 133(C).
    10. Hossein Abouee‐Mehrizi & Opher Baron & Oded Berman & David Chen, 2021. "Adoption of Electric Vehicles in Car Sharing Market," Production and Operations Management, Production and Operations Management Society, vol. 30(1), pages 190-209, January.
    11. Wang, Yingli & Singgih, Meita & Wang, Jingyao & Rit, Mihaela, 2019. "Making sense of blockchain technology: How will it transform supply chains?," International Journal of Production Economics, Elsevier, vol. 211(C), pages 221-236.
    12. Ruixue Guo & Hau L. Lee & Robert Swinney, 2016. "Responsible Sourcing in Supply Chains," Management Science, INFORMS, vol. 62(9), pages 2722-2744, September.
    13. Hong, Zhaofu & Guo, Xiaolong, 2019. "Green product supply chain contracts considering environmental responsibilities," Omega, Elsevier, vol. 83(C), pages 155-166.
    14. Govindan, Kannan & Rajeev, A. & Padhi, Sidhartha S. & Pati, Rupesh K., 2020. "Supply chain sustainability and performance of firms: A meta-analysis of the literature," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 137(C).
    15. Wang, Xinyu & Sethi, Suresh P. & Chang, Shuhua, 2022. "Pollution abatement using cap-and-trade in a dynamic supply chain and its coordination," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 158(C).
    16. Dong, Ciwei & Chen, Chenyi & Shi, Xiutian & Ng, Chi To, 2021. "Operations strategy for supply chain finance with asset-backed securitization: Centralization and blockchain adoption," International Journal of Production Economics, Elsevier, vol. 241(C).
    17. Johari, Maryam & Hosseini-Motlagh, Seyyed-Mahdi & Rasti-Barzoki, Morteza, 2019. "An evolutionary game theoretic model for analyzing pricing strategy and socially concerned behavior of manufacturers," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 128(C), pages 506-525.
    18. Xu Chen & Gang Hao, 2015. "Sustainable pricing and production policies for two competing firms with carbon emissions tax," International Journal of Production Research, Taylor & Francis Journals, vol. 53(21), pages 6408-6420, November.
    19. Yen-Ting Lin & Haoying Sun & Shouqiang Wang, 2020. "Designing Sustainable Products Under Coproduction Technology," Manufacturing & Service Operations Management, INFORMS, vol. 22(6), pages 1181-1198, November.
    20. Kouhizadeh, Mahtab & Saberi, Sara & Sarkis, Joseph, 2021. "Blockchain technology and the sustainable supply chain: Theoretically exploring adoption barriers," International Journal of Production Economics, Elsevier, vol. 231(C).
    21. Konur, Dinçer, 2017. "Non-collaborative emission targets joining and quantity flow decisions in a Stackelberg setting," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 105(C), pages 60-82.
    22. Choi, Tsan-Ming & Guo, Shu & Liu, Na & Shi, Xiutian, 2020. "Optimal pricing in on-demand-service-platform-operations with hired agents and risk-sensitive customers in the blockchain era," European Journal of Operational Research, Elsevier, vol. 284(3), pages 1031-1042.
    23. Gabriella M. Hastig & ManMohan S. Sodhi, 2020. "Blockchain for Supply Chain Traceability: Business Requirements and Critical Success Factors," Production and Operations Management, Production and Operations Management Society, vol. 29(4), pages 935-954, April.
    24. Wen, Xin & Sun, Xuting & Sun, Yige & Yue, Xiaohang, 2021. "Airline crew scheduling: Models and algorithms," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 149(C).
    25. Niu, Baozhuang & Dong, Jian & Liu, Yaoqi, 2021. "Incentive alignment for blockchain adoption in medicine supply chains," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 152(C).
    26. Huaqing Wang & Haresh Gurnani & Murat Erkoc, 2016. "Entry Deterrence of Capacitated Competition Using Price and Non-Price Strategies," Production and Operations Management, Production and Operations Management Society, vol. 25(4), pages 719-735, April.
    27. Choi, Tsan-Ming, 2019. "Blockchain-technology-supported platforms for diamond authentication and certification in luxury supply chains," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 128(C), pages 17-29.
    28. Shen, Bin & Xu, Xiaoyan & Yuan, Quan, 2020. "Selling secondhand products through an online platform with blockchain," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 142(C).
    29. Nagurney, Anna & Besik, Deniz & Li, Dong, 2019. "Strict quotas or tariffs? Implications for product quality and consumer welfare in differentiated product supply chains," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 129(C), pages 136-161.
    30. Wang, Yingjia & Fan, Di & Fung, Yi-Ning & Luo, Suyuan, 2022. "Consumer-to-consumer product exchanges for original fashion brands in the sharing economy: Good or bad for fashion knockoffs?," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 158(C).
    31. Ivanov, Dmitry & Dolgui, Alexandre & Sokolov, Boris, 2022. "Cloud supply chain: Integrating Industry 4.0 and digital platforms in the “Supply Chain-as-a-Service”," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 160(C).
    32. Ryan W. Buell & Basak Kalkanci, 2021. "How Transparency into Internal and External Responsibility Initiatives Influences Consumer Choice," Management Science, INFORMS, vol. 67(2), pages 932-950, February.
    33. Xu, Xiaoping & Choi, Tsan-Ming, 2021. "Supply chain operations with online platforms under the cap-and-trade regulation: Impacts of using blockchain technology," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 155(C).
    34. Dutta, Pankaj & Choi, Tsan-Ming & Somani, Surabhi & Butala, Richa, 2020. "Blockchain technology in supply chain operations: Applications, challenges and research opportunities," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 142(C).
    35. Choi, Tsan-Ming & Guo, Shu & Luo, Suyuan, 2020. "When blockchain meets social-media: Will the result benefit social media analytics for supply chain operations management?," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 135(C).
    36. Choi, Tsan-Ming & Siqin, Tana, 2022. "Blockchain in logistics and production from Blockchain 1.0 to Blockchain 5.0: An intra-inter-organizational framework," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 160(C).
    37. Lingxiu Dong & Panos Kouvelis, 2020. "Impact of Tariffs on Global Supply Chain Network Configuration: Models, Predictions, and Future Research," Manufacturing & Service Operations Management, INFORMS, vol. 22(1), pages 25-35, January.
    38. Guo, Shu & Choi, Tsan-Ming & Shen, Bin, 2020. "Green product development under competition: A study of the fashion apparel industry," European Journal of Operational Research, Elsevier, vol. 280(2), pages 523-538.
    39. Chen, Xu & Wang, Xiaojun & Chan, Hing Kai, 2017. "Manufacturer and retailer coordination for environmental and economic competitiveness: A power perspective," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 97(C), pages 268-281.
    40. Hafezalkotob, Ashkan, 2017. "Competition, cooperation, and coopetition of green supply chains under regulations on energy saving levels," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 97(C), pages 228-250.
    41. Chunguang Bai & Joseph Sarkis, 2020. "A supply chain transparency and sustainability technology appraisal model for blockchain technology," International Journal of Production Research, Taylor & Francis Journals, vol. 58(7), pages 2142-2162, April.
    42. Wang, Mingzheng & Liu, Junling & Chan, Hau-Ling & Choi, Tsan-Ming & Yue, Xiaohang, 2016. "Effects of carbon tariffs trading policy on duopoly market entry decisions and price competition: Insights from textile firms of developing countries," International Journal of Production Economics, Elsevier, vol. 181(PB), pages 470-484.
    43. Choi, Tsan-Ming & Luo, Suyuan, 2019. "Data quality challenges for sustainable fashion supply chain operations in emerging markets: Roles of blockchain, government sponsors and environment taxes," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 131(C), pages 139-152.
    44. Shen, Bin & Choi, Tsan-Ming & Chan, Hau-Ling, 2019. "Selling green first or not? A Bayesian analysis with service levels and environmental impact considerations in the Big Data Era," Technological Forecasting and Social Change, Elsevier, vol. 144(C), pages 412-420.
    45. Yu, Min & Cruz, Jose M. & Li, Dong Michelle, 2019. "The sustainable supply chain network competition with environmental tax policies," International Journal of Production Economics, Elsevier, vol. 217(C), pages 218-231.
    46. Li, Zhiwen & Xu, Xianhao & Bai, Qingguo & Guan, Xu & Zeng, Kuan, 2021. "The interplay between blockchain adoption and channel selection in combating counterfeits," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 155(C).
    47. Choi, Tsan-Ming & Wen, Xin & Sun, Xuting & Chung, Sai-Ho, 2019. "The mean-variance approach for global supply chain risk analysis with air logistics in the blockchain technology era," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 127(C), pages 178-191.
    48. Bian, Junsong & Zhao, Xuan, 2020. "Competitive environmental sourcing strategies in supply chains," International Journal of Production Economics, Elsevier, vol. 230(C).
    49. Biswas, Indranil & Raj, Alok & Srivastava, Samir K., 2018. "Supply chain channel coordination with triple bottom line approach," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 115(C), pages 213-226.
    50. A. Gürhan Kök & Kevin Shang & Şafak Yücel, 2018. "Impact of Electricity Pricing Policies on Renewable Energy Investments and Carbon Emissions," Management Science, INFORMS, vol. 64(1), pages 131-148, January.
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