Is collusion more commonly accepted in some Asian cultures? I distinctly remember my grad school classes, where even by getting 95% I'd be dead last in the class rankings because all the Chinese/Indian students would get 98/99/100% on their assignments. I didn't really care about it, figuring that their studying habits were much more diligent than mine, until one time I arrived in the classroom 45 minutes early and f…
1. It makes sense. A lot of sense. In the real world, it's far more useful to be able to collaborate effectively than to always adopt an adversarial or competitive attitude.
2. It should be addressed openly. Personally, I think a more collaborative environment would help a lot of us in a lot of ways, but sometimes that's just not how things are supposed to be done (e.g. assignments and tests in most US schools); in that case, everyone might be a little more aware and happy if it were clear up front -- in very multi-cultural situations -- what the expectations are regarding individual work.
Of course, that won't stop everyone, and it doesn't address every problem, but making everyone aware of the differences could stop a lot of misunderstanding and, potentially, what's technically cheating even though that may not be the intent.
[edit: Of course, some people do just plain cheat, knowingly and willfully; this is not intended to excuse that behavior, which is crap and should be punished.]