Patent-enhancing strategies by industry in Korea using a data envelopment analysis

Bang Rae Lee, Dong Kyu Won, Jun Hwan Park, Lee Nam Kwon, Young Ho Moon, Han Joon Kim

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Global competition has increased the importance of patents as a means to protect and strengthen technology and competitiveness. The purposes of our study were to identify what industries in South Korea are strong or weak in terms of patent applications and to identify some strategies to enable weak industries to become strong. For this, we gathered statistics on seven variables as follows: number of businesses, number of employees, research and development investment, number of full-time equivalent researchers, number of research institutions, domestic market size, and number of patent applications. Especially, to compare the ratio of patent applications and the ratio of domestic market size across industries, the industries were classified into the following three categories: strong-, weak-, and no-patent. Furthermore, data envelopment analysis (DEA) suggested some strategies to strengthen patent applications for each industry. In the DEA analysis, the number of patent applications was used as the output variable and the other six variables were used as input variables. Our study will particularly assist industries where protection by patents is an important aspect of their businesses.

Original languageEnglish
Article number901
JournalSustainability (Switzerland)
Issue number9
StatePublished - 6 Sep 2016


  • Data envelopment analysis
  • Industry analysis
  • Market size
  • Patent analysis
  • Patent-strengthening strategy
  • R & BD infrastructure


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