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Analysis of Regional Disparities, Spatiotemporal Evolution and Key Influencing Factors of Marine New Productive Forces in China

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  • Ying Sun

    (School of Business, Jiangsu Ocean University, Lianyungang 222005, China)

  • Zili Zhou

    (School of Business, Jiangsu Ocean University, Lianyungang 222005, China)

  • Ying Fang

    (Jiangsu Marine Economic Monitoring and Assessment Center, Nanjing 226334, China)

  • Meng Bie

    (Jiangsu Marine Economic Monitoring and Assessment Center, Nanjing 226334, China)

  • Xiaoguang Sun

    (Institute of Chinese Financial Studies, Southwestern University of Finance and Economics, Chengdu 310012, China)

Abstract

New productive forces are the new impetus for the high-quality development of the marine economy. To accurately measure the development level of marine new productive forces, this study constructs an evaluation index system from four aspects: development impetus, development structure, development mode, and development achievements. This study determines the combination weights of indicators based on relative entropy. Kernel density estimation, spatial Markov chain and Dagum Gini coefficient are used to analyze the spatiotemporal evolution, regional disparities and sources of marine new productive forces in coastal provinces of China. Finally, the decision-making trial and evaluation laboratory together with interpretative structural modeling (DEMATEL-ISM) is used to analyze the key influencing factors of marine new productive forces. Results show that the marine new productive forces have been increasing year by year, but the overall level is relatively low. There is a phenomenon of “club convergence” in the development level of marine new productive forces, and the state transfer occurs between adjacent types. The overall variation in marine new productive forces is showing a downward trend, with disparities arising mainly from inter-regional variation and hypervariable densities. The key influencing factors include investment in marine R&D, the openness of foreign investment, the openness of foreign trade, and investment in pollution control. The study conclusion provides support for designing a development path for marine new productive forces that conforms to regional characteristics.

Suggested Citation

  • Ying Sun & Zili Zhou & Ying Fang & Meng Bie & Xiaoguang Sun, 2025. "Analysis of Regional Disparities, Spatiotemporal Evolution and Key Influencing Factors of Marine New Productive Forces in China," Sustainability, MDPI, vol. 17(4), pages 1-22, February.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:4:p:1432-:d:1587513
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    References listed on IDEAS

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    1. Sergio Rey & Brett Montouri, 1999. "US Regional Income Convergence: A Spatial Econometric Perspective," Regional Studies, Taylor & Francis Journals, vol. 33(2), pages 143-156.
    2. Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
    3. Shujie Yao, 1999. "On the decomposition of Gini coefficients by population class and income source: a spreadsheet approach and application," Applied Economics, Taylor & Francis Journals, vol. 31(10), pages 1249-1264.
    4. Dagum, Camilo, 1997. "A New Approach to the Decomposition of the Gini Income Inequality Ratio," Empirical Economics, Springer, vol. 22(4), pages 515-531.
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    Cited by:

    1. Chuanjian Yi & Yu Zhang & Shilong Xi & Kejun Lin, 2025. "High-Quality Development of China’s Marine Economy: Green Finance Perspectives (2010–2021)," Sustainability, MDPI, vol. 17(16), pages 1-22, August.
    2. Shuguang Liu & Yutong Zhang & Jialu Wang & Chenyun Wang & Sumei Chen & Yuhao Liu, 2025. "The Impact of the Spatial Mobility of Marine New Qualitative Productivity Force Factors on the Coordinated Development of China’s Marine Economy," Sustainability, MDPI, vol. 17(13), pages 1-25, June.

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