But 2% annual growth is normal for developed economies. The USA with 4% under Trump is really kicking it and that looks unsustainable.

Also I thought economists believed 5% unemployment was something of a lower bound, that there's always a bit of natural unemployment as people move around between jobs - you can't actually ever hit zero.

So I'm not sure from these stats why South Korea thinks they have a growth or employment problem. It doesn't look like it. The primary driver of economic growth in advanced economies with stable populations is productivity increases and those come from technological advancement, which isn't going to be much affected by minimum wages.