Neste artigo documentamos haver entre alunos do ensino básico no Brasil uma relação negativa e significativa entre dispersão etária dentro das turmas e a proficiência individual. A relação entre a defasagem idade-série da criança e a sua proficiência escolar é usualmente explicada...

In this article we show that among elementary school students in Brazil there is a negative and significant relationship between within-class age dispersion and pupil’s proficiency. The relationship between the age-grade delay and school proficiency is usually explained by several factors that...

The reduction of standard weekly working time from the current level of 44 hours to 40 hours has recently been proposed by the main central unions as a way to create jobs and reduce unemployment in Brazil. The idea, known as work-sharing, is that the reduction in average hours per worker would...

This paper presents a new assessment the Stolper-Samuelson Theorem, relaxing the neoclassical hypothesis of perfect factor mobility and wage flexibility. We build a model economy in which some sector face imperfect competition and workers are unionized in those sector, so that wages are not...

We study the determinants of the public-private earnings gap for different levels of schooling of Brazilian workers. First, using the current earnings as the variable of interest, we estimate that less educated people receive higher earnings in the public sector (i.e., the earnings gap is...

The reduction of standard weekly working time from the current level of 44 hours to 40 hours has recently been proposed by the main central unions as a way to create jobs and reduce unemployment in Brazil. The idea, known as work-sharing, is that the reduction in average hours per worker would...