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Abstract
Ecological coordination is a key objectives of the
Beijing-Tianjin-Hebei (BTH) coordinated development strategy. As the
construction of a Beautiful China enters a critical stage of synergistic
governance for pollution reduction and carbon mitigation, scientifically
evaluating the environmental benefits of the BTH coordinated development holds
significant theoretical and practical importance. Based on New Economic
Geography, Collaborative Governance Theory, and Innovation-Driven Theory, this
paper constructs an analytical framework for regional coordination driving
ecological governance. Using the 2014 elevation of BTH coordinated development
to a national strategy as a quasi-natural experiment and provincial panel data,
this study employs the Synthetic Control Method to assess its pollution and
carbon reduction effects. Furthermore, Grey Relational Analysis identifies the
core mechanisms. Results show the policy yields significant, sustained, and
robust pollution and carbon reduction effects, confirming its well-timed
implementation. The mechanisms operate through five dimensions: spatial restructuring
and resource optimization, industrial upgrading and low-carbon transition,
technological innovation and green spillovers, regional environmental
collaboration, and transportation-energy integration. This study provides
empirical evidence and policy insights for deepening regional coordinated
governance and advancing synergistic pollution and carbon mitigation.
JEL classification numbers: R11, Q53, Q58.
Keywords: Beijing-Tianjin-Hebei Coordination, Pollution and Carbon
Reduction, Environmental Governance, Synthetic Control Method.