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Market Failures: Public Goods and Externalities
Market Failures: Public Goods and Externalities

... Market Failures: Public Goods and ...
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NAME: ≦b10おoの51

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... 5. Which of the following would cause a leftward shift in the demand for a good? a. an increase in income (assume the good is a normal good). b. an increase in the good's own price. *. a decrease in the price of a substitute. d. a decrease in the price of a complement. 6. When a popular movie star i ...
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... the amount producers are willing to supply  also goes up.  2. As the price of movie DVD goes up,  the amount consumers will demand, or want to purchase, goes down. ...
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Appendix 1

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Market Failures: Public Goods and Externalities
Market Failures: Public Goods and Externalities

... Market Failures: Public Goods and ...
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Public good



In economics, a public good is a good that is both non-excludable and non-rivalrous in that individuals cannot be effectively excluded from use and where use by one individual does not reduce availability to others. Gravelle and Rees: ""The defining characteristic of a public good is that consumption of it by one individual does not actually or potentially reduce the amount available to be consumed by another individual"".Public goods include fresh air, knowledge, public infrastructure, national security, education, common language(s), widespread and high public literacy levels, potable water, flood control systems, lighthouses, and street lighting. Public goods that are available everywhere are sometimes referred to as global public goods. There is an important conceptual difference between the sense of 'a' public good, or public 'goods' in economics, and the more generalized idea of 'the public good' (or common good, or public interest),""‘the’ public good is a shorthand signal for shared benefit at a societal level [this] (philosophical/political) sense should not be reduced to the established specific (economic) sense of ‘a’ public good.""Many public goods may at times be subject to excessive use resulting in negative externalities affecting all users; for example air pollution and traffic congestion. Public goods problems are often closely related to the ""free-rider"" problem, in which people not paying for the good may continue to access it. Thus, the good may be under-produced, overused or degraded. Public goods may also become subject to restrictions on access and may then be considered to be club goods or private goods; exclusion mechanisms include copyright, patents, congestion pricing, and pay television.There is a good deal of debate and literature on how to measure the significance of public goods problems in an economy, and to identify the best remedies.
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