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Table 2 Correlation coefficients of R&D input variables (the whole sample, n = 2076)

From: Differences in technology innovation R&D performance creation behavior between for-profit institutions and not-for-profit institutions

  X1 (R&D budget) X2 (R&D period)
X2 (R&D period)
 Pearson’s r 0.408  
 (P value) (0.000***)  
 Kendall’s τ B 0.510  
 (P value) (0.000***)  
 Spearman’s ρs 0.673  
 (P value) (0.000***)  
X3 (R&D workforce)
 Pearson’s r 0.578 0.084
 (P value) (0.000***) (0.000***)
 Kendall’s τ B 0.350 0.111
 (P value) (0.000***) (0.000***)
 Spearman’s ρs 0.476 0.148
 (P value) (0.000***) (0.000***)
  1. *, **, *** Indicate statistical significance at the significance level α = 10, 5, 1 % respectively