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Table 8 Restricted access problems and innovation performance in the biotechnology industry: Poisson regression results of variables versus innovation performance

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

Innovation performance

Coeff.

Std. err.

P > z

Constant***

1.377

0.266

0.000

Difficulty**

0.073

0.034

0.033

Size*

0.290

0.171

0.090

Age

0.003

0.002

0.242

Sigma

0.826

0.048

0.000

 

Number of obs.

76

 
 

Log likelihood

--856.413

 
 

Chi squared

1121.803

 
 

Prob > chi2

0.000

 
  1. Poisson model with normal heterogeneity
  2. *** denotes the correlation coefficient observed at significance level < 0.01.
  3. ** denotes the correlation coefficient observed at significance level < 0.05.
  4. * denotes the correlation coefficient observed at significance level < 0.10.