This paper analyzes the influence of European debt crisis in 2009, suspending IPO in 2012 andmarket crash in 2015 on China's energy stock market in terms of the shareholders' co-holdingbehavior using a three-layer complex network system. Firstly, we construct this three-layercomplex network...

We present estimates of 4 and 8 firm concentration ratios by industry and in weighted aggregate form for the manufacturing sector for Chinese enterprises for 2002 and 2007. These are then compared to available estimates for the same years and industrial classification for the US. These...