Examlex
Research has substantiated that yawning is often contagious.
Aluminum
A chemical element, symbol Al, known for its lightweight properties and wide use in various industries such as transportation, construction, and packaging.
Differentiated Oligopolist
A type of oligopoly where firms sell products or services that are distinct from each other and are not perfect substitutes.
Highly Concentrated
Describes a market or industry dominated by a small number of firms, leading to reduced competition and possibly higher prices and lower output.
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