These types of democracy are commonly identified as tribalism, or "primitive democracy". In this sense, a "primitive democracy" usually takes shape in small communities or villages when there are face-to-face discussions in a village council or with a leader who has the backing of village elders or other cooperative forms of government. This becomes more complex on a larger scale, such as when the village and city are examined more broadly as political communities. All other forms of rule – including monarchy, tyranny, aristocracy, and oligarchy – have flourished in more urban centers, often those with concentrated populations.