HOWEVER, Jewish people are generally smarter because they have excellent parents, and tradition which values education...just like in GENERAL Chinese parents are like, or Indians, or Japanese, and even many Middle Eastern ones (lol, though not as clear over here ><). There parents want their sons/daughters to grow up and have a good career, etc and so value education.
Generally I agree with this point, that the primary difference for Jewish academic success is a cultural one. It's common knowledge that Jewish culture greatly prizes learning for its own sake, and intellectual achievement - look at the importance even these days of learning Hebrew and Torah. So parents are going to emphasise the importance of academic success to their children; teaching standards at Jewish schools are perhaps going to be higher, as both the teacher and the students are engaged etc etc.
It is interesting to note, however, that some studies posit that Ashkenazi Jews (meaning Jews who are of European background) have objectively higher IQ in some areas (
http://en.wikipedia.org/wiki/Ashkenazi_intelligence). The theory is that Jews have been subject to a selective pressure that favours intelligence, due to years and years of persecution in Europe. I personally don't subscribe to the whole "your worth as a human being is determined entirely by genetics" thing - and again, even the belief that IQ measures an objective "intelligence" is always open to debate. Still, its another example of the nature-vs-nurture question, which for me is perhaps the most interesting question of all.
I don't see how similar selective pressures to the ones that account for Ashkenazi intelligence could really be said to exist in the case of other stereotyped "smart races" (East Asian or South Asian people) - so largely I think the whole race/nature idea is bogus. And the idea of differentiating between people on race is one that is really morally and spiritually repugnant to me. So please don't get the wrong idea - just responding to the poster above!
Anyway, back on topic!