A Study on Analyzing Innovation Efficiency in Service Sector of Korea

우리나라 서비스부문의 혁신효율성 분석에 관한 연구

  • Choi, Joung-In (Department of Management of Technology, Sungkyunkwan University) ;
  • Gwon, Seong-Hoon (Department of Management of Technology, Sungkyunkwan University) ;
  • Song, Sung-Hwan (R&D Policy Team, Korea Institute of Oriental Medicine) ;
  • Hwang, Seog-Won (Economic Analysis Research Division, Science and Technology Policy Institute)
  • 최정인 (성균관대학교 기술경영학과) ;
  • 권성훈 (성균관대학교 기술경영학과) ;
  • 송성환 (한국한의학연구원 연구정책팀) ;
  • 황석원 (과학기술정책연구원 경제분석연구단)
  • Received : 2009.07.20
  • Accepted : 2009.11.04
  • Published : 2009.12.01

Abstract

One of primary assumptions on DEA is that all DMUs for evaluation should be homogeneous. In comparative analysis among DMUs with relative efficiency measurement, it should be evaluated under identical conditions by ruling out external environmental influences. In this study, a measurement of innovation efficiency using the three-stage approach is performed. The approach employs DEA to measure relative efficiency and Tobit regressions to control external variables affecting innovation activity. The approach applied to firms in Korean Innovation Survey: Service Sector 2003 and 2006. Final efficiency scores of the approach represent net efficiency of the innovation. This study found that there is a increasing on technical efficiency of third stage, and it has difference with first stage significantly. Besides, a decrease on standard deviation of third stage is found. It means DMUs biased lower due to unfavorable condition and ones biased higher due to favorable condition are fallen into an identical operating environment through the approach. A measurement of net efficiency, excluding external effects, ensures the homogeneity of DMUs so that improves the reliability in terms of its analysis results. This study is expected to provide a direction and to be a valuable reference to further evaluation of innovation performance in Korean service sector.

Keywords

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