Examlex
The opportunity cost of something is what you give up to get it.
Consumer Surplus
The difference between the highest price a consumer is willing to pay and the actual market price they pay.
Monopoly
A market structure characterized by a single seller or producer dominating the entire market, with no close substitutes available.
Network Externalities
The effect that the number of users of a product or service has on the value of that product to others, often leading to increased utility as more people use it.
Patents
Legal documents granting exclusive rights to inventors for their creations, preventing others from making, using, or selling the invention for a certain period of time.
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