集权 is a formal term primarily used in discussions about politics, history, and governance. You won't hear it in casual daily conversation, but it's very common in news analysis, academic articles, and official government documents.
Official Connotation (Neutral to Positive): In state media and official discourse, 集权 is often framed as a necessity for efficiency, national unity, and rapid development. The ability to mobilize resources and implement policies on a national scale is presented as a key advantage of this system. Here, it is often referred to as 中央集权 (zhōngyāng jíquán), or “centralized power.”
Critical Connotation (Negative): Among critics, both domestic and international, 集权 is used with a negative connotation. In this context, it is synonymous with authoritarianism, lack of local autonomy, suppression of dissent, and the potential for abuse of power. The phrase 权力过度集权 (quánlì guòdù jíquán), “excessive centralization of power,” is often used to highlight these dangers.