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| | PRM 255 Market Failure and Externalities |
 | | When excluding users of a good is difficult, the good is often referred to as a high exclusion cost good or a nonexcludable good. |
 | | Examples of goods where excluding users is very costly include the ozone layer, the global climate system, the hydrological cycle, the biogeochemical cycles, biodiversity, air quality, water quality, ocean fish, national defense, public health, radio broadcasts, and street lighting. |
 | | For a public good, each unit of the good is being shared so we add up the price each individual is willing to pay for that unit across all the individuals sharing it. |
| www.msu.edu /course/prm/255/market_failure.htm (3093 words) |
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