Differences between black and white students in Britain are investigated. If black parents would invest in education as much as white parents do, the racial test score gap in mathematics and reading would be reduced by 7 and 9%.
Reference:
Patacchini, Eleonora and Yves Zenou (2009),
"On the Sources of the Black-white Test Score Gap in Europe".
Economics Letters
102(1),
49–52.