Dependency Theory

Structuralism--The Core gets more benefit out of free core-periphery trade than the periphery, and the terms of trade gradually worsen for the periphery

Prebisch

Singer

Furtado

Exploitative Dependence--The Core takes unfair advantage of the periphery's systematic vulnerability in "free" trade, and the periphery gets a bad deal in such trade, and the terms of trade may gradually worsen

Cardoso

Faletto

Core Capitalism as Exploitative Underdeveloper--The Core Prevents Capitalist Development at the Periphery, as well as exploits its vulnerability in trade

Baran

Frank

Dos Santos

Amin

Wallerstein

Rodney

World-systems Analysis

Frank

Wallerstein

Amin