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Table 7 Descriptive statistics and correlation (n = 76)

From: Effects of research tool patents on biotechnology innovation in a developing country: A case study of South Korea

  Mean S. D. Difficulty Size Age
Difficulty 2.566 1.159 1.000   
Size 1.276 0.473 0.030 1.000  
Age 95.658 38.037 --0.091 0.357 1.000