Actually the CHINEESE were not the only sole cause of the price jump. The Silkroad was BOOMING at that time. Another "silkroad" 3.0 is coming soon and it will drive the price up again just watch.
SilkRoad was busted in early Oct/2013. Some (not me) claim that the bust actually helped the price, because it dispelled the perception of "currency of drug users and criminals".
But SilkRoad may have been responsible for the famous Mar/2011 bubble. I gather that SR started operating on Jan/2011, so the timing seems compatible.
If that was the case, it would be useful to understand why that bubble deflated almost completely through the rest of 2011. Understanding that decay could perhaps help us understand the downtrend of 2014, which is often compared to it.