Rather than comparing societies with one another, we compare systems of human societies (or intersocietal systems) and these are empirically bounded in space as interaction networks--bilateral or multilateral regularized exchanges of materials, obligations, threats, and information.
In the last decade, the world-systems approach has been extended to the analysis of earlier and smaller intersocietal systems. Andre Gunder Frank and Barry Gills (1993) have argued that the contemporary world system is a continuation of a 5000-year old system that emerged with the first states in Mesopotamia.
Chase-Dunn and Hall (1997) note that in most intersocietal systems there are several important networks of different spatial scales and relative intensities, which impinge upon any particular locale: Information Networks (INs); Prestige Goods Networks (PGNs); Political/Military Networks (PMNs); and Bulk Goods Networks (BGNs).