“…When comparing recent studies on economic groups in Latin America with literature of the 1950s, 1960s and 1970s (Hexner, 1950;Haberler, 1953;CEPAL, 1959;Lagos, 1961;Cademartori, 1971;Zeitlin, 1975) there is a surprising similarity in the components of analysis, such as the size, nature and economic role of these groups, and the concentration of power. The differences lie in the characteristics of the global factors that influence the formation of economic groups, in the relations between state and capital, and in the appraisal of the political and social effects of economic concentration.…”