Kleniewski suggests that Castells made three important modifications to world systems theory. The most important modification is that
◦ some regions of the world will be irrelevant to the world economy.
◦ informational labor will take on greater importance than low cost labor or labor that produces raw materials.
◦ most informational labor will move to the less developed countries.
◦ the new international division of labor will be increasingly based on networks and flows of information rather than nations.