[jsutter909]

Because it means they can borrow for free

[johnvanommen]

Everything has consequences.

Free money is never free.

[georgeecollins]

One cost is to the savings of Japanese people who don't get a competitive rate of return on their savings. They save a lot and generally don't invest abroad.

[1024core]

If their own government is giving them a 0 interest rate, why are they not investing abroad?