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Chinese Journal of Management Science ›› 2026, Vol. 34 ›› Issue (4): 34-46.doi: 10.16381/j.cnki.issn1003-207x.2024.0854

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Modelling and Application of Economic Time Series Forecasting Considering Spatial Proximity Effect

Song Ding1,2,3(), Xingao Shen4, Yaoguo Dang5, Xupeng Guo5   

  1. 1.Zheshang Capital Market Research Institute,Zhejiang University of Finance and Economics,Hangzhou 310018,China
    2.Zhejiang Institute of “Eight-Eight” Strategies,Hangzhou 310018,China
    3.School of Economics,Zhejiang University of Finance and Economics,Hangzhou 310018,China
    4.Zhejiang Research Institute of ZUFE-UCASS,Zhejiang University of Finance and Economics,Hangzhou 310018,China
    5.College of Economics and Management,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China
  • Received:2024-05-30 Revised:2024-10-17 Online:2026-04-25 Published:2026-03-27
  • Contact: Song Ding E-mail:dingsong1129@163.com

Abstract:

In real-world economic systems, the development trends of major systems are often influenced by spillover effects from neighbouring regions. However, existing grey multivariate models mainly focus on the temporal utility of correlated variables while overlooking the dynamic spatial relationships between neighbouring entities. To address this gap, a novel integrated spatial proximity term is introduced based on geographic and economic distances to measure spatial proximity effects. On this basis, three types of grey multivariate models that consider spatial proximity effects have been developed, namely STGM(1, N, M), STGMC(1, N, M), and STDGM(1, N, M) models. Moreover, the challenge of selecting model hyperparameters is tackled by designing an innovative intelligent algorithm selection framework. This framework introduces three criteria for identifying optimal algorithms, including accuracy verification, statistical testing, and parameter sensitivity analysis, thus enhancing the reliability, stability, and interpretability of the model solutions. The effectiveness and applicability of the spatial proximity term are validated through various methods, such as the HLN test, Monte-Carlo simulations, and probability density analysis, from the perspectives of accuracy and stability. Finally, a case study on the economic prediction of Shanghai demonstrates that the integration of the novel spatial proximity term significantly improves the ability of all three grey multivariate models to capture the spatial proximity effects of neighbouring regions, offering enhanced prediction accuracy, reliability, and stability.

Key words: grey system, grey multivariable models, spatial proximity effects, grey forecasting

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