Economic Definition of demerit good. Defined.
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Term demerit good Definition: A good that society, usually government, deems is overvalued by consumers in normal market exchanges. As such, governments typically restrict the consumption of demerit goods through policies such as taxes or direct government control. Demerit goods are often have characteristics of quasi-public goods or externality by-products. Examples include tobacco and narcotic drugs. The counter type of good is a merit good.