is to find out what leads an individual to earn more in the market: either because he has more years of schooling, longer time studying, or more years of age, longer time working. To find out whether it was knowledge learned at school or knowledge acquired at work that has created objective conditions to climb societys income scale.Thus, if it was years of schooling, the tendency is that more time studying concentrates individuals in the higher income brackets compared to years of work; otherwise, it will be years of work.The test uses two different sources, the 2011 PNAD and the 2010 Census There was no other way, though, because IBGE did not publish comparable data for the same years in the two sources. The comparison should lose in accuracy but not in trend, because the information base is the same, i.e. the population of occupied 10-year-olds and older. But the fact that the PNAD tables are referred to all the jobs (works) and the Census to the main job (work) can cause discrepancies in absolute and relative numbers.The assumption is that, even so, the discrepancies are not outstanding to the point of undermining the comparison. Again, the assessment of trends in the data, without worrying about the magnitudes of the absolute or relative numbers, should mitigate any errors in reliability. The same assumption holds for the one-year gap in the collection of the PNAD and Census data.Finally, there is the weight of time, which favors the comparison. Both the data on years of schooling and years of work show the number of years that occupied people have studied or are still studying, and the number of years of work. These data in the two data sources are irrefutable as measures of knowledge and experience.Table 7 - Occupied people (thousands), 10 years and more of age, by age groupsand monthly income classes of all Jobs Brazil 2010Classes10 to 14years15 to 19years20 to 24years25 to 29years30 to 39years40 to 49yearsTotalAte 123471204100194016761034620212 a 113619613298289547953522166071 a 26515134533479278984644234452 a 31115198415492897204376353 a 555248811082307189058505 a 1031710163916241736412010 a 201430165563809157220 e +0,411047227502787,4Total568,449031044512135219871618066218,4Table 8 - Occupied people (thousands), (%), 10 years and more of age, by age groupsand monthly income classes of all Jobs Brazil 2010Classes10 a 14 anos15 a 19 anos20 a 24 anos25 a 29 anos30 a 39 anos40 a 49 anosTotalAte 125,619,416,115,227,016,710012 a 10,811,819,917,428,921,21001 a 20,36,519,320,433,719,81002 a 30,12,012,920,337,926,81003 a 500,98,318,939,532,399,95 a 1000,42,515,539,442,199,910 a 200,10,21,910,535,851,510020 e +0,10,11,36,028,863,7100Source: Demographic Census Except without income and declaration.Thus, the comparison of tables 6 and 8 allows tracking the evolution of individuals in the labor market, more or less in the same reference period of the surveys (2010/2011). Through the years of schooling groups and age groups, one can have an idea of which of the benchmarks had the greatest influence on the movement of individuals in the income scales of society.The first conclusion drawn from the comparison is that both years of schooling and age positively influenced the movement of individuals. The groups gradually moved up the income scale, some more, some less, visibly. Education and work experience, in fact, help individuals mobility in