This is very easy to prove [1][2]. Brazil has that reputation in the broarder academic world, and it's for a reason.
reply[1] https://www.sciencedirect.com/science/article/abs/pii/S17511...
[2] https://www.scielo.br/j/aac/a/xNytDrrrHdyK4XPcHBRJZmd/?lang=...
One study about faculty hiring people they know, and the other about high school students cheating on assignments...
What was the original claim again?
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