Austerity! Thats a good joke if I ever saw one! The governments before Abe have been endlessly building airports, dams, roads, train lines just like in the old days. And explain me how you end up with 350 percents of GDP of debt if you have a policy of austerity. Japan s budget has been out of balance for 20 years. If you want to support Keynes you will need to find something a lot more convincing.
The parent to your reply has no idea what he/she is talking about. The lost decade has nothing to do with austerity and was not, in any conceivable way, a period of austerity.
It was never claimed to be as such, and nobody has ever mistaken it as such. Original comment is just confused/misinformed.