Financial Economics Research Based on the “Entropy-Coupling” Model——Taking Zhejiang Province as an Example

Financial and economic development are strongly supported by national policies. New productivity is driving rapid growth in the financial and economic sectors. Furthermore, the government is promoting industrial upgrading through consumer services, intelligent industrial transformation, and green technological upgrades, thereby driving economic development. As a key factor supporting economic growth and driving industrial upgrading, the efficient and stable development of finance is crucial for regional coordination. Zhejiang Province, as a frontier region in China's financial and economic development, boasts a typical and exemplary financial and economic development model. This study examines the comprehensive development level of Zhejiang's financial and economic system and explores the interactive and coordinated relationships within it, providing theoretical support for regional financial and economic coordinated development. Therefore, this study employs an "entropy-coupling" model to empirically examine Zhejiang's financial and economic development. Based on the diverse nature of financial and economic development, this study constructs data covering dimensions such as social financing scale, money circulation volume, and risk control, and summarizes them into a comprehensive evaluation index system encompassing both economic and financial development. The entropy method is used to objectively assign weights to measure the comprehensive development level of Zhejiang's financial economy from 2019 to 2023. Furthermore, to explore the degree of coupling and coordination within the financial and economic system, the study further employs a coupling coordination degree model. The "entropy-coupling" model reveals that Zhejiang Province's comprehensive financial and economic score has been rising annually, with a compound annual growth rate of approximately 69% from 2020 to 2023. An analysis of subsystem development reveals that the comprehensive scores of the financial development subsystem and the economic development subsystem have also been rising annually, with compound annual growth rates of 54.98% and 85.73% from 2020 to 2023, respectively. Furthermore, based on the coupled model analysis, financial and economic development were in a phase of disharmony in 2019 and entered a phase of coordination from 2020 to 2023. In summary, given Zhejiang Province's specific economic context and in alignment with national economic and financial policies, the province should maintain a prudent monetary policy and adopt a cautious approach to fiscal investment. Priority should be placed on supporting green finance, technological innovation, and the digital economy. Strengthening financial and economic resilience to risks, optimizing resource allocation, and enhancing the efficiency of policy implementation will collectively contribute to more sustainable and high-quality economic development.