“…Many researchers have analysed various aggregated, cross-national data as indicators of a country's positions in the global system to test dependency theory and WST (Brams 1966;Chase-Dunn 1975;Streiber 1979;Snyder & Kick 1979;Kick 1980Kick , 1983Kick , 1987Breiger 1982;Schott 1986;Smith & Nemeth 1988;Knoke & Burmeister-May 1990.) Among the indicators used in these studies, trade was the major independent variable, measuring external dependency, whereas economic development, quality of life, and various population indicators served as dependent variables.…”