Main Article Content
Abstract
This study examines the complex interactions among intellectual property protection (IPP), digital economy development, and corporate green innovation using panel data from Chinese listed firms (2014-2022). Employing threshold regression models and moderated regression analysis, we identify significant nonlinear relationships and regulatory mechanisms. Results reveal a U-shaped relationship between IPP and the quantity of green innovation, with identifiable threshold effects across multiple protection regimes. However, IPP exhibits predominantly negative effects on innovation quality across protection levels, with varying intensities observed in different regimes (zones 1-4). Digital economy development demonstrates dimension-specific moderating effects, significantly amplifying the promotional effect on innovation quantity (coefficient 0.711**) but showing minimal impact on innovation quality (-0.085, insignificant), functioning as an "efficiency amplifier" rather than a "quality enhancer." Green agency costs exhibit complex regulatory mechanisms that vary across institutional regimes, resulting in compensatory effects in weak protection environments and triggering institutional overload in strong protection contexts. These findings challenge the linear "more protection equals more innovation" assumption and highlight fundamental distinctions in how technological and institutional drivers affect different dimensions of green innovation. The results have crucial implications for policymakers in designing differentiated IPP regimes and targeted digital economy policies optimized for specific development stages.
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References
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- Cai, J., Yuan, J., Yu, C., & Yu, C. (2024). Can the Establishment of Intellectual Property Demonstration Cities Stimulate Green Technology Innovation of Enterprises in China? Journal of the Knowledge Economy. https://doi.org/10.1007/s13132-024-02548-x
- Liu, Y., Chen, L., Luo, H., Liu, Y., & Wen, Y. (2024). The impact of intellectual property rights protection on green innovation: A quasi-natural experiment based on the pilot policy of the Chinese intellectual property court. Mathematical Biosciences and Engineering, 21(2), 2587–2607. DOI:10.3934/mbe.2024114
- Rennings, K. (2000). Redefining innovation—eco-innovation research and the contribution from ecological economics. Ecological economics, 32(2), 319-332. DOI:10.1016/S0921-8009(99)00112-3
- Liu, Z., & Zhong, Z. (2024). Green growth: Intellectual property conflicts and prospects in the extraction of natural resources. Resources Policy, 92, 104886. DOI:10.1016/j.resourpol.2023.104588
- Luo, Y., Xu, L., & Wu, C. (2025). Effects of Environmental Regulation and Intellectual Property Protection on Green Technological Innovation: Evidence from China. SAGE Open, 15(1). DOI:10.1177/21582440251323433
- Chen, W., & Chen, X. (2024). Patent protection policy and firms' green technology innovation: Mediating roles of open innovation. Sustainability, 16(5), 2217. https://doi.org/10.3390/su16052217
- Cheng, P., Wang, M., & Choi, B. (2024). IPR Protection and Sustainable Economic Growth: Domestic R&D Level and International R&D Trade Cooperation Perspective. Sustainability, 16(14), 6051. https://doi.org/10.3390/su16146051
- Heller, M. A., & Eisenberg, R. S. (1998). Can patents deter innovation? The anticommons in biomedical research. Science, 280(5364), 698-701. DOI: 10.1126/science.280.5364.698
- Cheng, K., Yin, J., Wang, F., & Wang, M. (2025). The impact pathway of new quality productive forces on regional green technology innovation: A spatial mediation effect based on intellectual property protection. PloS one, 20(4), e0319838. https://doi.org/10.1371/journal.pone.0319838
- Huang, C., & Lau, C. (2024). Can digital transformation promote the green innovation quality of enterprises? Empirical evidence from China. PLoS ONE, 19(1), e0296058. https://doi.org/10.1371/journal.pone.0296058
- Tao, A., Xu, M., Ma, Y., & Zhang, P. (2024). Does enterprise digital transformation contribute to green innovation? Micro-level evidence from China. Journal of Environmental Management, 370, 122609. DOI: 10.1016/j.jenvman.2024.122609
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- Luo, Y., Xu, L., & Wu, C. (2023). Internet development and regional innovation efficiency: The moderating effect of intellectual property protection. Technology Analysis & Strategic Management, 35(10), 1-19. https://doi.org/10.1080/09537325.2023.2196350
- Fang, L. H., & Li, L. (2024). Corporate digitalization and green innovation: Evidence from textual analysis of firm annual reports. Business Strategy and the Environment, 33(5), 3677–3700. https://doi.org/10.1002/bse.3677
- Zhao, X., & Qian, Y. (2024). Does digital technology promote green innovation performance?. Journal of the Knowledge Economy, 15, 7568–7587. https://doi.org/10.1007/s13132-023-01410-w
- Xu, C., Sun, G., & Kong, T. (2024). The impact of digital transformation on enterprise green innovation. International Review of Economics and Finance, 90, 1–12. https://doi.org/10.1016/j.iref.2023.11.001
- Bu, W., Yan, Z., & Yang, S. (2024). How Does Producer Services Agglomeration Impact the Persistence of Green Innovation: Enterprise-Level Empirical Evidence from China. http://dx.doi.org/10.2139/ssrn.4871865
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- Adomako, S., & Tran, H. (2024). Intellectual property rights protection and sustainable innovation performance. https://doi.org/10.1002/sd.3220
- Kesidou, E., & Wu, L. (2024). Subnational institutions, firm capabilities and eco-innovation. Industrial and Corporate Change, 33(6), 1460–1491. https://doi.org/10.1093/icc/dtae016
- Hansen, B. E. (1999). Threshold effects in non-dynamic panels: Estimation, testing, and inference. Journal of econometrics, 93(2), 345-368. https://doi.org/10.1016/S0304-4076(99)00025-1
- Wei, T., Zhao, S., & Li, R. (2024). Still collaborating? Strengthening intellectual property protection and collaborative innovation choices. Journal of Knowledge Management, 28(3), 675–693. https://doi.org/10.1007/s10961-024-10169-4
- Ullah, F., Jiang, P., & Elamer, A. A. (2024). Revolutionizing green business: The power of academic directors in accelerating eco-innovation and sustainability. Business Strategy and the Environment, 33(6), 3738–3755. https://doi.org/10.1002/bse.3738
- Ding, T., & Wiroonrath, P. (2024). Fostering Business Innovation Through Intellectual Property Protection: Evidence from Sichuan Province. https://doi.org/10.57239/PJLSS-2024-22.2.00922
- Lan, M., Yan, W., Li, J., & Wang, K. (2024). Greening through courts: Environmental law enforcement and corporate green innovation. Economic Analysis and Policy, 83, 223–242. https://doi.org/10.1016/j.eap.2024.06.016
- Dong, X., & Wang, Y. (2024). Intellectual property, resource curse, and the path to sustainable investment in China. Resources Policy, 91, 104877. https://doi.org/10.1016/j.resourpol.2024.105270
- Nie, S. (2024). Does intellectual property rights protection matter for low-carbon transition? The role of institutional incentives. Economic Modelling, 140, 106842. https://doi.org/10.1016/j.econmod.2024.106842
- Li, F., Shi, H., Zhou, B., Ding, K., & Li, Y. (2024). Policy instruments and green innovation: Evidence and implications for corporate performance. Journal of Cleaner Production, 471, 143443. https://doi.org/10.1016/j.jclepro.2024.143443
- Sarabdeen, J., & Ishak, M. (2024). Intellectual property law protection for energy-efficient innovation in Saudi Arabia. Environmental Innovation and Societal Transitions, 50, 100779. https://doi.org/10.1016/j.heliyon.2024.e29980
- Amankwah-Amoah, J., & Medase, E. (2023). Extracting Innovation Value from Intellectual Property: Evidence from sub-Saharan Africa. https://doi.org/10.1007/s13132-023-01225-9
- Liang, W., Yu, W., & Yao, X. (2025). Liberalization of upstream productive services and green innovation in downstream manufacturing firms: Evidence from China. Energy Economics, 142, 108173. https://doi.org/10.1016/j.eneco.2024.108173
- Zhao, Z., Zhao, Y., Lv, X., Li, X., Zheng, L., Fan, S., & Zuo, S. (2024). Environmental regulation and green innovation: Does state ownership matter?. Energy Economics, 136, 107762. https://doi.org/10.1016/j.eneco.2024.107762
- Wang, Z., Chen, J., & Xue, X. (2025). Assessing the efficacy of green credit policy in fostering green innovation in heavily polluting industries. Clean Technologies and Environmental Policy, 27(1), 309–325. https://doi.org/10.1007/s10098-024-02871-6
References
Chang, L., Taghizadeh-Hesary, F., Chen, H., & Mohsin, M. (2022). Do green bonds have environmental benefits?. Energy Economics, 115, 106356. https://doi.org/10.1016/j.eneco.2022.106356
Cai, J., Yuan, J., Yu, C., & Yu, C. (2024). Can the Establishment of Intellectual Property Demonstration Cities Stimulate Green Technology Innovation of Enterprises in China? Journal of the Knowledge Economy. https://doi.org/10.1007/s13132-024-02548-x
Liu, Y., Chen, L., Luo, H., Liu, Y., & Wen, Y. (2024). The impact of intellectual property rights protection on green innovation: A quasi-natural experiment based on the pilot policy of the Chinese intellectual property court. Mathematical Biosciences and Engineering, 21(2), 2587–2607. DOI:10.3934/mbe.2024114
Rennings, K. (2000). Redefining innovation—eco-innovation research and the contribution from ecological economics. Ecological economics, 32(2), 319-332. DOI:10.1016/S0921-8009(99)00112-3
Liu, Z., & Zhong, Z. (2024). Green growth: Intellectual property conflicts and prospects in the extraction of natural resources. Resources Policy, 92, 104886. DOI:10.1016/j.resourpol.2023.104588
Luo, Y., Xu, L., & Wu, C. (2025). Effects of Environmental Regulation and Intellectual Property Protection on Green Technological Innovation: Evidence from China. SAGE Open, 15(1). DOI:10.1177/21582440251323433
Chen, W., & Chen, X. (2024). Patent protection policy and firms' green technology innovation: Mediating roles of open innovation. Sustainability, 16(5), 2217. https://doi.org/10.3390/su16052217
Cheng, P., Wang, M., & Choi, B. (2024). IPR Protection and Sustainable Economic Growth: Domestic R&D Level and International R&D Trade Cooperation Perspective. Sustainability, 16(14), 6051. https://doi.org/10.3390/su16146051
Heller, M. A., & Eisenberg, R. S. (1998). Can patents deter innovation? The anticommons in biomedical research. Science, 280(5364), 698-701. DOI: 10.1126/science.280.5364.698
Cheng, K., Yin, J., Wang, F., & Wang, M. (2025). The impact pathway of new quality productive forces on regional green technology innovation: A spatial mediation effect based on intellectual property protection. PloS one, 20(4), e0319838. https://doi.org/10.1371/journal.pone.0319838
Huang, C., & Lau, C. (2024). Can digital transformation promote the green innovation quality of enterprises? Empirical evidence from China. PLoS ONE, 19(1), e0296058. https://doi.org/10.1371/journal.pone.0296058
Tao, A., Xu, M., Ma, Y., & Zhang, P. (2024). Does enterprise digital transformation contribute to green innovation? Micro-level evidence from China. Journal of Environmental Management, 370, 122609. DOI: 10.1016/j.jenvman.2024.122609
Liu, X., Sun, Y., Feng, H., & Gu, B. (2024). How does transition finance influence green innovation of high-polluting and high-energy-consuming enterprises?. Environmental Science and Pollution Research, 31, 1-19. https://doi.org/10.1007/s11356-023-31360-4
Liu, Z., Mu, R., Hu, S., Wang, L., & Wang, S. (2018). Intellectual property protection, technological innovation and enterprise value—An empirical study on panel data of 80 advanced manufacturing SMEs. Cognitive Systems Research, 52, 741–746. https://doi.org/10.1016/j.cogsys.2018.08.012
Luo, Y., Xu, L., & Wu, C. (2023). Internet development and regional innovation efficiency: The moderating effect of intellectual property protection. Technology Analysis & Strategic Management, 35(10), 1-19. https://doi.org/10.1080/09537325.2023.2196350
Fang, L. H., & Li, L. (2024). Corporate digitalization and green innovation: Evidence from textual analysis of firm annual reports. Business Strategy and the Environment, 33(5), 3677–3700. https://doi.org/10.1002/bse.3677
Zhao, X., & Qian, Y. (2024). Does digital technology promote green innovation performance?. Journal of the Knowledge Economy, 15, 7568–7587. https://doi.org/10.1007/s13132-023-01410-w
Xu, C., Sun, G., & Kong, T. (2024). The impact of digital transformation on enterprise green innovation. International Review of Economics and Finance, 90, 1–12. https://doi.org/10.1016/j.iref.2023.11.001
Bu, W., Yan, Z., & Yang, S. (2024). How Does Producer Services Agglomeration Impact the Persistence of Green Innovation: Enterprise-Level Empirical Evidence from China. http://dx.doi.org/10.2139/ssrn.4871865
Yu, H., Sun, S., Han, R., & Wu, C. (2025). Influence of national intellectual property demonstration enterprise policy on urban green innovation: Evidence from China. Journal of the Knowledge Economy, 16(1), 1502-1518. https://doi.org/10.1007/s10668-023-03922-6
Sun, Y., & Yang, Y. (2024). Do government environmental target constraints break the political resource curse?--A study on political connections and firm green innovation. International Review of Economics and Finance, 96, 103534. https://doi.org/10.1016/j.iref.2024.103534
Adomako, S., & Tran, H. (2024). Intellectual property rights protection and sustainable innovation performance. https://doi.org/10.1002/sd.3220
Kesidou, E., & Wu, L. (2024). Subnational institutions, firm capabilities and eco-innovation. Industrial and Corporate Change, 33(6), 1460–1491. https://doi.org/10.1093/icc/dtae016
Hansen, B. E. (1999). Threshold effects in non-dynamic panels: Estimation, testing, and inference. Journal of econometrics, 93(2), 345-368. https://doi.org/10.1016/S0304-4076(99)00025-1
Wei, T., Zhao, S., & Li, R. (2024). Still collaborating? Strengthening intellectual property protection and collaborative innovation choices. Journal of Knowledge Management, 28(3), 675–693. https://doi.org/10.1007/s10961-024-10169-4
Ullah, F., Jiang, P., & Elamer, A. A. (2024). Revolutionizing green business: The power of academic directors in accelerating eco-innovation and sustainability. Business Strategy and the Environment, 33(6), 3738–3755. https://doi.org/10.1002/bse.3738
Ding, T., & Wiroonrath, P. (2024). Fostering Business Innovation Through Intellectual Property Protection: Evidence from Sichuan Province. https://doi.org/10.57239/PJLSS-2024-22.2.00922
Lan, M., Yan, W., Li, J., & Wang, K. (2024). Greening through courts: Environmental law enforcement and corporate green innovation. Economic Analysis and Policy, 83, 223–242. https://doi.org/10.1016/j.eap.2024.06.016
Dong, X., & Wang, Y. (2024). Intellectual property, resource curse, and the path to sustainable investment in China. Resources Policy, 91, 104877. https://doi.org/10.1016/j.resourpol.2024.105270
Nie, S. (2024). Does intellectual property rights protection matter for low-carbon transition? The role of institutional incentives. Economic Modelling, 140, 106842. https://doi.org/10.1016/j.econmod.2024.106842
Li, F., Shi, H., Zhou, B., Ding, K., & Li, Y. (2024). Policy instruments and green innovation: Evidence and implications for corporate performance. Journal of Cleaner Production, 471, 143443. https://doi.org/10.1016/j.jclepro.2024.143443
Sarabdeen, J., & Ishak, M. (2024). Intellectual property law protection for energy-efficient innovation in Saudi Arabia. Environmental Innovation and Societal Transitions, 50, 100779. https://doi.org/10.1016/j.heliyon.2024.e29980
Amankwah-Amoah, J., & Medase, E. (2023). Extracting Innovation Value from Intellectual Property: Evidence from sub-Saharan Africa. https://doi.org/10.1007/s13132-023-01225-9
Liang, W., Yu, W., & Yao, X. (2025). Liberalization of upstream productive services and green innovation in downstream manufacturing firms: Evidence from China. Energy Economics, 142, 108173. https://doi.org/10.1016/j.eneco.2024.108173
Zhao, Z., Zhao, Y., Lv, X., Li, X., Zheng, L., Fan, S., & Zuo, S. (2024). Environmental regulation and green innovation: Does state ownership matter?. Energy Economics, 136, 107762. https://doi.org/10.1016/j.eneco.2024.107762
Wang, Z., Chen, J., & Xue, X. (2025). Assessing the efficacy of green credit policy in fostering green innovation in heavily polluting industries. Clean Technologies and Environmental Policy, 27(1), 309–325. https://doi.org/10.1007/s10098-024-02871-6