Keyword :
Mesures din{ف }galites , Economics of education , Schooling systems , Systmes denseignement , Quantile regressions , Economie de l{ف }ducation , R-gressions quantiles , Egalit- des chances , Analyse normative , equality of opportunity , Econom-trie appliqu{eف } , Inequality measurement , Applied econometrics , Normative analysis , Brsil