1.) China's unemployment rate is no where near comparable to europe's. China considers one employed if one has worked at least ONE hour a week. or if their family have land to farm.

2.) There's nothing comparable to what's happening to China right now, except for the Russia sanctions, where an entire economic engine (export, 25% of GDP) is being ripped out or shut down, by companies pulling factories out of China

3.) Blackstone and IMF have been plenty wrong before. also, there's no chance they don't at least use some part of the data from the Chinese's National office of statistics.