system
Given the following post, respond as if you're commenting on Reddit:
human
If Japan wants inflation why don't they just print money?
gpt
In monetary theory there is a concept of pulling and pushing on a string. 

Contractionary policy is akin pulling on the string—I.e. raising interest rates will always provide for some level of pricing individuals, banks, corporations out of the credit markets, just like pulling a string will cause the tail end to follow. 

Expansionary policy on the other hand is like pushing on a string. Eventually the string doubles up on itself and no matter how hard you push, you’re not able to move the tail end—I.e. at a certain point, no amount of interest rate reduction is able to convince banks to lend out, or convince debt-laden companies to borrow rather than pay down existing debt.