[corimaith]

Most countries are surplus countries and to maintain that competiveness they do alot of things that ultimately weaken their consumption to go into investment instead. They also a buy alot of US treasuries, giving USA alot of credit.

Because of this, the US dollar is the reserve currency and quite strong, which combined with strong credit means that Americans are quite incentived to spend. Another point is that this dynamic concentrates jobs in high paying roles like Finance, leading to a "winner takes all" economy. Which is relevant because 50% of consumption is done by the top 10% of the population.