Examlex
When average total cost rises if a producer either increases or decreases production, then the firm is said to be operating at efficient scale.
Monopoly
The exclusive possession or control of the supply of or trade in a commodity or service by a single company or group.
Mass Mediums
Channels or technologies used to deliver content to a large audience, such as television, radio, newspapers, and the internet.
Telegraph
A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
Radio
A technology for transmitting audio content wirelessly to a broad audience, historically significant in the development of mass media.
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