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Table 3 Factors affecting the attempt to issue compulsory licensing

From: Importance of the intellectual property system in attempting compulsory licensing of pharmaceuticals: a cross-sectional analysis

Model Model 1: Without weights to the variable of income Model 2: With weights to the variable of income
Data source Son and Lee (2018) Updated information with ‘t Hoen et al. (2019) Son and Lee (2018) Updated information with ‘t Hoen et al. (2019)
index Estimate SE P value Estimate SE P value Estimate SE P value Estimate SE P value
Region (Ref. Others)
 Africa 2.4587 1.1664 0.0350 2.7947 1.1915 0.0189 2.1885 0.3819 <  0.0001 2.4772 0.3875 <  0.0001
 Asia 1.9965 1.0580 0.0591 2.0194 1.0789 0.0612 1.7490 0.3345 <  0.0001 1.7563 0.3398 <  0.0001
 Latin America 3.1951 1.1070 0.0038 3.2869 1.1325 0.0037 3.0282 0.3583 <  0.0001 3.0871 0.3647 <  0.0001
Population (log) 0.9215 0.2580 0.0003 0.9764 0.2672 0.0002 0.9565 0.0889 <  0.0001 0.9994 0.0914 <  0.0001
Income (log) 0.1105 0.2662 0.6781 0.0600 0.2647 0.8205 0.0367 0.0930 0.6930 −0.0191 0.0923 0.8356
Polity (Ref. Anocracy)
 Autocracy 0.3731 1.3486 0.7820 0.5930 1.3779 0.6669 0.2539 0.4749 0.5930 0.4560 0.4845 0.3466
 Democracy 0.2591 0.7457 0.7281 0.5884 0.7391 0.4259 0.3651 0.2693 0.1750 0.6697 0.2684 0.0126
The PIPP index 0.8511 0.4036 0.0349 0.9315 0.4109 0.0234 0.7793 0.1393 <  0.0001 0.8505 0.1411 <  0.0001