(...) Barro (1999) used data on students' scores on comparable international examinations on a growth regression and showed that scores on sciences and mathematics had a positive relationship with economic growth, but scores on the reading test were insignificantly related to growth.
(...)
This means that richer countries are investing less than middle income countries in high-tech human capital, which was not expected.

Economia também é low-tech human capital. Malditas ciências sociais.

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