Table 3

Disaggregated results by economic development

GDP per capita <US$5000GDP per capita <US$10 000GDP per capita <US$30 000GDP per capita <US$50 000GDP per capita >US$50 000
Coefficient of reimbursement programme0.302***0.490***0.068***0.132***−0.004
P value0.009<0.0010.010<0.000.966
Number of obs.2955238361090108
Number of countries3860809911
  • ***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.