I would suggest reading the cited article from that section, it’s free to access and clarifies the categorisation far better than I have here.

Also, consider the fact that China calls itself democratic. Does that make it so? What a country calls itself and what political scientists call it (based on typologies like those discussed in the aforementioned article) are very different things.

China specialist, feminist, political scientist in progress. Reviews, socialism & everyday academia. Low-brow, no jargon/acronyms. Editor of The Open Bookshelf.