The dependencia school is a Latin American school associated with e. g. Ruy Mauro Marini, Theotônio dos Santos, and Raúl Prebisch. Prominent figures of the World Systems Theory are Immanuel Wallerstein and Giovanni Arrighi.[1] While they use a widely similar scientific vocabulary, Amin rejected f.e. the notion of a semi-periphery and was against the theorization of capitalism as cyclical (as by Nikolai Kondratjew) or any kind of retrojection., thus holding a minority position among the World System theorists.[2]