http://nypost.com/2015/03/25/us-stock-market-is-just-way-too-riggin-easy/
This sort of thing is happening all over the world, not just Japan. Central banks stimulating their economies by buying up bonds and stocks. If you think of these banks as part of their respective governments ( if not THE government), then the trend is towards communism by default. Right now, the Fed is talking about downsizing their assets purchased thru stimulating the economy – while many experts believe that’s a pipe dream. In fact, it may be the only thing preventing collapse. In addition, low interest rates and mergers have greatly reduced the number of publicly traded companies in the US. So, another trend that may accelerate the default conversion of whole economies towards communism ( like it or not) as there are fewer stocks to buy up.