According to Wallerstein, there are three categories into which the world's countries might be divided: core, periphery, and semiperiphery.
<h3>
Why is the modern world system an important theory?</h3>
The World-Systems Theory can be helpful in understanding world history as well as the core countries' motivations for imperialization and other involvements, such as the US assistance after natural disasters in emerging Central American countries or imposing regimes on other core states.
<h3>What does Wallerstein define as the contemporary world-system?</h3>
A world-system is a social framework that must maintain coherence and has boundaries, hierarchical organizational structures, component member groups, and constituent member groups. Its opposing forces give it life; they cause it to fall apart as each faction fights tenaciously to remodel it to their favor while still keeping it together through tension.
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