GDP per capita <US$5000 | GDP per capita <US$10 000 | GDP per capita <US$30 000 | GDP per capita <US$50 000 | GDP per capita >US$50 000 | |
Coefficient of reimbursement programme | 0.302*** | 0.490*** | 0.068*** | 0.132*** | −0.004 |
P value | 0.009 | <0.001 | 0.010 | <0.00 | 0.966 |
Number of obs. | 295 | 523 | 836 | 1090 | 108 |
Number of countries | 38 | 60 | 80 | 99 | 11 |
***p<0.01, **p<0.05, *p<0.1. We estimated model 4 in table 2 where all control variables and country and year fixed effects are included.