Throughout history, to consolidate power or to pacify potential troublemakers, those who have ruled have passed through phases of cooperation and collusion. And when central power is in decline and local power on the rise, government's authority is threatened.
中國歷代執政者，為了鞏固領導中心，安撫各方勢力，都要經過一番妥協掛鉤；而當中央權力式微，地方勢力崛起時，也就是政權出現危機的時候。