Definition
An item whose consumption is not decided by the individual consumer but by the society as a whole, and which is financed by taxation.
A public good (or service) may be consumed without reducing the amount available for others, and cannot be withheld from those who do not pay for it. Public goods (and services) include economic statistics and other information, law enforcement, national defense, parks, and other things for the use and benefit of all. No market exists for such goods, and they are provided to everyone by governments. See also good and private good.
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