The Government plays an important role in controlling the economy of a country through various economic policies.
Public goods and services are goods and services provided for use to the public by the government or individual free of charges.
Negative externalities of a good are the consequences arising from the production or consumption of good that affects a third party ( not directly involved in the consumption or production of the goods.) e.g. air pollution
Positive externalities is the vice versa of negative externalities .
Excludable goods are otherwise known as private goods are goods that are accessible to consumers at a certain price.
Market failures can be caused by the creation of artificial scarcity by producers
Hence we can conclude that public good , Negative and positive externalities , excludable goods and market failures are as described above
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