How did Raúl Prebisch’s core-periphery model describe the global economy?

Raúl Prebisch, a leading structuralist economist, described the global economy as one integrated system divided between a wealthy, industrialized “core” in the Global North and a poorer “periphery” in the Global South. Peripheral economies were dominated by agriculture and resource extraction. He also said this pattern appeared inside peripheral countries, where industrialized cities often prospered while rural areas remained dependent on farming and extracting resources. Prebisch argued that economic development in peripheral countries could not be understood without considering their relationship to the industrialized core.