The school reenrollment probability conditional on a child’s circumstances (gender, indigenous origin, and family background) is our measure of a child’s school reenrollment opportunity. For children who completed grades 1–6, we use generalized Lorenz and Lorenz dominance to show that Progresa improved aggregate opportunities and reduced inequality of opportunity. Moreover, using the human opportunity index—or, alternatively, a Gini opportunity aggregator—we show that the decrease in inequality of opportunity accounts for about 15%–40% of the total effect of the program on aggregate opportunities.

中文翻译：

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Progresa 是否减少了重新入学机会的不平等？

以孩子的情况（性别、原住民出身和家庭背景）为条件的学校再入学概率是我们衡量孩子再入学机会的指标。对于完成 1-6 年级的儿童，我们使用广义洛伦兹和洛伦兹优势来表明 Progresa 改善了总体机会并减少了机会不平等。此外，使用人类机会指数——或者，基尼机会聚合器——我们表明，机会不平等的减少约占该计划对总机会的总影响的 15%–40%。