关键词: SBM-Malmquist指数；民航工业企业；技术效率；全要素生产率；时空特征

Abstract: The civil aviation manufacturing industry is a reflection of Chinas comprehensive strength and is related to Chinas overall industrial strength and national defense security. The paper selects the operating data of civil aviation enterprises in 16 provinces and cities in China from 2012 to 2022, and uses the super efficiency SBM-DEA method to characterize the overall and spatiotemporal characteristics of industrial enterprise operating efficiency. It calculates the redundancy and redundancy ratio of three input factors for enterprise operating efficiency in each province and city, analyzes the dynamic trend of enterprise total factor productivity using the Malmquist index, and draws a scatter plot of enterprise operating super efficiency total factor productivity matrix from the perspective of dynamic and static analysis. Research shows that the operational efficiency of enterprises needs improving, the total factor productivity growth is slow, and labor redundancy is relatively prominent. Finally, this paper proposes relevant strategies to promote highquality development of civil aviation and improve the operating efficiency of civil aviation enterprises: promoting the optimization of capital and talent chains, improving the human resource foundation for enterprise operating efficiency improvement, and strengthening the reliability of civil aviation intelligent manufacturing system.

Key words: SBM Malmquist index; civil aviation enterprises; technical efficiency; total factor productivity; spatiotemporal characteristics