Mustafa is a world-systems theorist who studies the world's most powerful countries and explains how they capture the lion's share of the world's wealth. His research focuses on core types of countries.
Core countries are wealthy, developed, and industrialized countries on which middle- and low-income countries, known as semi-periphery and periphery countries, rely for economic assistance.The core countries control and benefit from the global market. They are typically regarded as wealthy states with a diverse set of resources and a favorable geographical location in comparison to other states. They have strong state institutions, a powerful military, and strong global political alliances. The United States, Canada, most of Western Europe, Japan, Australia, and New Zealand are examples of current core countries with the most power in the world economic system.
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