Actually I thought that China's GDP is larger than Japan's thus making it number 2. However if you look at the gap between China and the US China has a long way to go.
I don't think that there are enough of you that can see just how much of an economic dynamo the US is.
Like statistics you can read anything into numbers.
It's probably not the size but how you use what you've got.
Possibly the US have China in a very awkward corner and a totalitarian government is very predictable when it comes to economics.
