Spatial-temporal coupling coordination and interaction between digitalization and traditional industrial upgrading: a case study of the Yellow River Basin.

In Model (20), the contribution of SZH and GN shocks to the prediction variance of SZH firstly increased and then decreased, the contribution of GY shocks to the prediction variance of SZH maintained an increasing trend, while the contribution of CP and STH shocks to the prediction variance of SZH maintained a decreasing trend.

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On the whole, the contribution of CSJ shock to its own prediction variance is the largest and shows a decreasing trend.

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