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AP Micro Review Powerpoint
AP Micro Review Powerpoint

... For the monopolistically competitive firm, what happens to output and profit if there is an elimination of a business license fee (a fixed cost). The correct answer is: --output does not change because the license fee is a fixed cost and does not affect marginal cost. --profit will increase since t ...
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econ2000: intermediate microeconomics i – 2012/13

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Externality



In economics, an externality is the cost or benefit that affects a party who did not choose to incur that cost or benefit.For example, manufacturing activities that cause air pollution impose health and clean-up costs on the whole society, whereas the neighbors of an individual who chooses to fire-proof his home may benefit from a reduced risk of a fire spreading to their own houses. If external costs exist, such as pollution, the producer may choose to produce more of the product than would be produced if the producer were required to pay all associated environmental costs. Because responsibility or consequence for self-directed action lies partly outside the self, an element of externalization is involved. If there are external benefits, such as in public safety, less of the good may be produced than would be the case if the producer were to receive payment for the external benefits to others. For the purpose of these statements, overall cost and benefit to society is defined as the sum of the imputed monetary value of benefits and costs to all parties involved. Thus, unregulated markets in goods or services with significant externalities generate prices that do not reflect the full social cost or benefit of their transactions; such markets are therefore inefficient.
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