Such arrangement seems to become unsustainable if the age distribution in a population in an area is skewed/starts to skew not in the younger direction, and if the younger generations don't want to take on the debt load.
Which seems to be the route most countries are headed towards (India being the obvious exception). Good news is that Japan will get there first, so we can see what the actual impact is.
Comments
Such arrangement seems to become unsustainable if the age distribution in a population in an area is skewed/starts to skew not in the younger direction, and if the younger generations don't want to take on the debt load.
Which seems to be the route most countries are headed towards (India being the obvious exception). Good news is that Japan will get there first, so we can see what the actual impact is.
Japan is a-typical in many ways.