Page(s) 249-252 8.4. How Do Sociological Theories Explain Global Inequality? Fill in the blanks to complete the passage about world-systems theory. (Terms can be used more than once.) According to world-systems theory, - countries include the most economically developed countries, and they profit off of the - countries, which are typically very low-income and agricultural. The - countries are located between these extremes; they are somewhat controlled by the - , but also exploit - countries for gain. coresemiperipheryperiphery