According to andre gunder frank's "dependency theory" the development and prosperity of the world's core was based on the of the periphery.

underdevelopment

Explanation:

For Andre Gunder Frank, the industrialized nations and leaders in the capitalist system such as England and the US, have to lead to a state of permanent dependency and under-development in the peripheral nations.

Since the worlds capitalist core requires cheap primary sources like raw materials and cheap labour force, there exists ever present conditions that are favoured to keep a "state of the art".

The exploitation of the periphery started through practices like slavery, continued in colonialism, then justified further with trade systems , and today is kept in the form of multinational corporations and a supposed aid from Western institutions.