Examlex
An attempt by one oligopolist to increase its market share by cutting prices will leave competitors unaffected.
Barriers to Entry
Obstacles that make it difficult for new competitors to enter a market, such as high startup costs, strict regulations, or strong brand loyalty.
Lerner Indices
A measure of a firm's market power calculated by the difference between price and marginal cost relative to the price.
Marginal Cost
The additional cost incurred by producing one more unit of a product, reflecting the cost of the resources used in the production of that extra unit.
Patent
A governmental right granted to an inventor, giving the exclusive right to make, use, sell, and import an invention for a certain period of time.
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