It has been argued that the current environment of low rates is driven by a safe asset shortage [0]. Many investors (e.g. insurance companies, pension funds) need to match liabilities with assets yielding reliable returns. With a constrained supply of safe assets, this demand drives yields down. Austrian economists argue that the resulting level of interest rates may be artificially low, leading to 'malinvestment' [1…
With the low availability of reliable assets doesn’t that mean that any government could issue like 2% bonds and essentially get near unlimited buyers? Thus financing huge projects like a complete transition to green energy, or large infrastructure projects and at the same time help work against the potential severity of a future crash?
I also believe there can't really be a crash when interest rates are very low/at 0%, since the time value of money literally becomes null and debt can forever be pushed further. BUT since there is already existing debt to service - issued at higher interest rates - the debt size has to increase.
Then it works as a trap as the interest rates cannot easily go up without heavy defaults - because there is a lot of debt to service. Also, somehow low interest rates correlate with low GDP growth - max capacity, no room for growth left?
Disclaimer - not an economist, perhaps someone can debunk my theory and explain what I'm getting wrong.