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demand-side market failures
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happen when demand curves do not reflect consumers full willingness to pay for a good or service
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supply-side market failures
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occur when supply curves do not reflect the full cost of producing a good or service
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producer surplus
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the difference between the actual price a producer receives and the minimum acceptable price that a consumer would have to pay the producer to make a particular unit of output available
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productive efficiency
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when competition forces orange growers to use the best technologies and combinations of resources available, minimizing the per-unit cost of the output produced
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allocative efficiency
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every good or service is produced up to the point where the last unit provides a marginal benefit to consumers equal to the marginal cost of producing
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private goods
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goods offered for sale in stores, shops and on the internet
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efficiency losses
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reductions of combined consumer and producer surplus
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rivalry
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when one person buys and consumes a product, it is not available for another person to buy and consume. When Adams purchases and drinks a bottle of mineral water, it is not available for Benson to purchase and consume
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excludability
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sellers can keep people who do not pay for a product from obtaining its benefits. Only people who can afford it can use it
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public goods
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distinguished by non rivalry and non excludability
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non rivalry
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one person's consumption of a good does not preclude consumption of he good by others
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cost-benefit analysis
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the decision of weather to provide a particular public good and how much of it to provide.
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free-rider problem
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everyone can obtain the benefit
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non excludability
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there is no effective way of excluding individuals from the benefit of the good once it comes into existence
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externality
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when some of the costs or the benefits of a good or service are passed onto or "spill over to" someone other than the immediate buyer or seller.