For western people, they commonly believe that Asian people are smart. In the screen, Asian people are always described as the people with higher IQ. Some media tried to figure out the reason, then they found that Asian kids worked much harder. As the stronger competition in entering a better school, parents did everything for their children, in the hope that the kids could get the higher rate to receive the best education. The Asian kids study more hours than the western kids, and the pressure helps that Asian kids to get improved at the early time. So it is natural that Asian people do much better in the exams, which makes them look smart.