A lot of the shares are held by the family that controls the company, and the market may be less liquid than you think. If you are trading directly this can be frustrating. Of course, I don't suggest buying Bosnian mutual funds, but there is a payoff for being willing to put up with uncertainty. A couple of things worry me. They are now getting more and more expensive.
Ethnic strains are concerns.
There were anti-Chinese riots as recently as 1969 in Malaysia, and there are periodic stresses and strains. I don't think they are too serious as long as everyone is getting rich. There are political worries, as well. Labor relations in Korea, for example, are fairly tense. People have expectations, and the government is not delivering things like housing for the lower middle class.