(1) the ceaseless accumulation of capital as driving force;
(2) an axial division of labor in which there is a core-periphery tension, such that there is some form of unequal exchange (not necessarily as defined originally by Arghiri Emmanuel) that is spatial;
(3) the structural existence of a semiperipheral zone;
(4) the large and continuing role of nonwage labor alongside of wage labor;
(5) the correspondence of the boundaries of the capitalist world-economy to that of an interstate system comprised of sovereign states;