In this study, we first measured the malmquist productivity index by DEA among the Korean public firms. Second, there are 12 public corporations whose productivity (MPI) has decreased compared to 2014. This is mainly because of a decrease in productivity, as well as a decrease in the technical efficiency change index (TECI), impacted by the internal environment, and the increase in productivity because of an increase in the technology change index (TCI) impacted by the external environment. Finally, the analysis of the impact on the management assessment scores showed that the productivity (MPI), scale efficiency (CRS), size of sales, operating profitability, and total capital investment efficiency are significantly related (+), except for the asset turnover, which is a static financial ratio. Meanwhile, the management evaluation scores between the high-productivity public corporations and low-performing public corporations were significantly discriminating. Thus, it is confirmed that the nation's state-run companies must manage their MPIs in a time series to score high in management evaluation.

Abstract
1. Introduction
2. Theoretical Background
3. Management status analysis
    3.1 Comparison of Size between PA and Public firm
    3.2 Comparison of Financial rate between PA andPublic firm
4. Research Methodology and Analysis
    4.1 Research Model and Variables
    4.2 Research Hypothesis and analysis method
    4.3 Analysis procedure and method
    4.4 Statistics of Variables
    4.4 Correlation Analysis Result between Score andMPI and Related Variables
    4.5 DEA Malmquist Productivity Analysis Results
    4.6 Panel Regression Analysis results
    4.7 MPI Discriminant Analysis Results
5. Summary and Conclusion
References

• Ki-Yong Eom(Deputy manager, Gamcheon Office, Busan Port Authority)
• Ki-Myung Ahn(Division of Shipping Management, Korea Maritime and Ocean University) Corresponding author