just by virtue of getting CHINKed for 1000 years, they have an IQ somewhat higher than the mud people of Burma, Cambodia, Malaysia, Philippines, Indonesia, etc.
It's not coincidental that Singapore is the only developed country in Southeast Asia and the only country in Southeast Asia with a Chinese majority.
Thailand and Malaysia are the runners-up, and surprise surprise they both have huge Chinese minorities who control most of the economy in those countries. Unfortunately low IQ SEA monkeys control the governments there, so they'll be consigned to middle income in perpetuity.
Not that I'm biased or anything :^)