In the context of global stratification, which development model best explains the disparities between core and periphery nations?

In global stratification, the dependency theory best explains the differences between core and periphery nations. Core nations are usually wealthy and have advanced economies, while periphery nations are often poorer and rely on the core for trade and support. This model suggests that the wealth of core nations often comes from exploiting the resources and labor of periphery nations, leading to a cycle of dependency. For example, a rich country might use cheap materials from a poorer country to create expensive products, keeping the poorer country from developing its own economy. This shows how the relationship between these nations creates and maintains global inequalities.