The latest news is that China has overtaken Europe for the first time in R&D intensity. It now has USA and Japan in its sight. Will it ever catch up with either of these countries? If so, how long will it take to catch up with USA or Japan?
http://www.nature.com/news/china-tops-europe-in-rd-intensity-1.14476?goback=%2Egde_4574033_member_5826873197353529348#%21