Japan has been in a depression for twenty years or so now, and still they are fighting to try to get out of it. Twenty years!
On the bright side, given a depression is generally expected to run about twenty years or so, it's probably approaching time for it to be over for them at last. Probably they will get out of it by serious inflation through a last desperate burst of printing and debasing the yen, thereby finally scaring people out to the shops to get rid of their money before it's worthless. Perhaps it really is time to be heavily into their stock market, finally..?
Meanwhile, back in the West, we're just getting started doing the exact same things they've been doing in the East all that time. The definition of madness is doing the same thing over and over, expecting different results.