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The principle of comparative advantage
American Stores
historically refers to a chain of supermarkets and drugstores in the United States, illustrating an example of retail business operation.
Diffusion
The spread of cultural elements, ideas, technologies, or innovations from one area or social group to another.
Invention/Innovation
Occurs when existing cultural items are manipulated or modified to produce something new and socially valuable.
Discovery
The act of finding something unknown or unrecognized by others, often leading to new knowledge or understanding.
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