Policies to promote equity in education by ensuring a basic minimum standard of education for all and by limiting the influence of personal and social circumstances on educational potential should thus also be beneficial for earnings equality. Building on unconditional quantile regressions, Fournier and Koske (2012) use a methodology close to the one proposed by Firpo etal. ( The United States is used as reference country so that each country’s 90/10 percentile ratio is compared with the 90/10 percentile ratio of the United States. For each explanatory variable, the composition effect is constructed from a comparison of the variable’s mean in the two countries.