Answer :
Final answer:
According to Manuel Castells, well-defined borders that limit the flow of people and products are found in nation-states and corporations.
Explanation:
According to Manuel Castells, one setting that has well-defined borders that limit the flow of people and products is a nation-state. A nation-state is a political entity with well-defined borders that control the movement of people and the import and export of products. Another setting with well-defined borders is a corporation or multinational company. These entities have their own internal boundaries that regulate the movement of employees and goods across different locations.
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