“…In addition to the high-income core roughly spanning North America, Western Europe, and Japan, and the low-income periphery which includes the majority of the world's countries a third structural state exists as the semiperiphery which is composed of wealthy, noncore countries sufficiently able to act independently (Arrighi and Drangel, 1986;Babones, 2005;Chase-Dunn, 1998;Dezzani, 2001;Dezzani and Babones, 2008). Dezzani (2001;2002) has demonstrated the changes in state composition of the hierarchy from 1960 to 1990. In general, the hierarchy exhibits stochastic stationarity and has demonstrated remarkable stability both in the 1960^90 period as well as in the 1980^2005 period (Dezzani and Babones, 2008).…”