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"As you can see, there's a tight relationship between school enrolment in 1900 and income a century later. Ed Glaeser wrote on this back in 2009:One reason that historical education levels have such predictive power is that educational investment is extremely persistent. School enrollments in 1900 can explain more than 72 percent of the variation in years of schooling across countries today, as measured by data collected by Robert J. Barro and Jong-Wha Lee; a similar degree of persistence occurs across United States cities.Educated parents and teachers produce educated children; societies that invested in schooling a century ago still generally do so today. Moreover, education has an extraordinarily high contemporaneous relationship with national income levels.
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Obviamente, isto é sabido. No entanto, não deixa de ser curioso o posicionamento de Portugal. Inspecionando o gráfico acima ressalta que Portugal tem um desempenho em termos do PIB muito satisfatório face ao seu nível de escolaridade em 1900 em comparação com a média do comportamento dos outros países. Porquê?
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