🗊Презентация Chapter 10. Externalities

Категория: Экономика и Финансы
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Chapter 10. Externalities, слайд №1Chapter 10. Externalities, слайд №2Chapter 10. Externalities, слайд №3Chapter 10. Externalities, слайд №4Chapter 10. Externalities, слайд №5Chapter 10. Externalities, слайд №6Chapter 10. Externalities, слайд №7Chapter 10. Externalities, слайд №8Chapter 10. Externalities, слайд №9Chapter 10. Externalities, слайд №10Chapter 10. Externalities, слайд №11Chapter 10. Externalities, слайд №12Chapter 10. Externalities, слайд №13Chapter 10. Externalities, слайд №14Chapter 10. Externalities, слайд №15Chapter 10. Externalities, слайд №16Chapter 10. Externalities, слайд №17Chapter 10. Externalities, слайд №18Chapter 10. Externalities, слайд №19Chapter 10. Externalities, слайд №20Chapter 10. Externalities, слайд №21Chapter 10. Externalities, слайд №22Chapter 10. Externalities, слайд №23Chapter 10. Externalities, слайд №24Chapter 10. Externalities, слайд №25Chapter 10. Externalities, слайд №26
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Externalities 10
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Externalities 10

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Externalities Externality The uncompensated impact of one person’s actions on the well-being of a bystander Market failure Negative externality Impact on the bystander is adverse Positive externality Impact on the bystander is beneficial
Описание слайда:
Externalities Externality The uncompensated impact of one person’s actions on the well-being of a bystander Market failure Negative externality Impact on the bystander is adverse Positive externality Impact on the bystander is beneficial

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Externalities Examples of negative externalities: Exhaust from automobiles Barking dogs Examples of positive externalities: Restored historic buildings Research into new technologies Decision maker - fails to account for externalities Government: protect the interests of bystanders
Описание слайда:
Externalities Examples of negative externalities: Exhaust from automobiles Barking dogs Examples of positive externalities: Restored historic buildings Research into new technologies Decision maker - fails to account for externalities Government: protect the interests of bystanders

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Externalities and Market Inefficiency Externalities Cause markets to allocate resources inefficiently Welfare economics: a recap Demand curve – value to consumers Prices they are willing to pay Supply curve – cost to suppliers Equilibrium quantity and price Efficient Maximizes sum of producer & consumer surplus
Описание слайда:
Externalities and Market Inefficiency Externalities Cause markets to allocate resources inefficiently Welfare economics: a recap Demand curve – value to consumers Prices they are willing to pay Supply curve – cost to suppliers Equilibrium quantity and price Efficient Maximizes sum of producer & consumer surplus

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The market for aluminum 1
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The market for aluminum 1

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Externalities and Market Inefficiency Negative externalities Pollution Cost to society (of producing aluminum) Larger than the cost to the aluminum producers Social cost - supply Private costs of the producers Plus the costs to those bystanders affected adversely by the negative externality Social cost curve – above the supply curve
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Externalities and Market Inefficiency Negative externalities Pollution Cost to society (of producing aluminum) Larger than the cost to the aluminum producers Social cost - supply Private costs of the producers Plus the costs to those bystanders affected adversely by the negative externality Social cost curve – above the supply curve

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Pollution and the social optimum 2
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Pollution and the social optimum 2

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Externalities and Market Inefficiency Negative externalities Optimum quantity produced Maximize total welfare Smaller than market equilibrium quantity Government – correct market failure Internalizing the externality Altering incentives so that people take account of the external effects of their actions E.g.: tax producers Shift supply upward – by the size of the tax Tax – value of negative externality
Описание слайда:
Externalities and Market Inefficiency Negative externalities Optimum quantity produced Maximize total welfare Smaller than market equilibrium quantity Government – correct market failure Internalizing the externality Altering incentives so that people take account of the external effects of their actions E.g.: tax producers Shift supply upward – by the size of the tax Tax – value of negative externality

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Externalities and Market Inefficiency Positive externalities Education Benefit of education – private Externalities: better government, lower crime rate, higher productivity and wages Social value – demand Higher than private value Social value curve Above demand curve
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Externalities and Market Inefficiency Positive externalities Education Benefit of education – private Externalities: better government, lower crime rate, higher productivity and wages Social value – demand Higher than private value Social value curve Above demand curve

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Education and the social optimum 3
Описание слайда:
Education and the social optimum 3

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Externalities and Market Inefficiency Positive externalities Socially optimal quantity Greater than market equilibrium quantity Government – correct market failure Internalize the externality Subsidy
Описание слайда:
Externalities and Market Inefficiency Positive externalities Socially optimal quantity Greater than market equilibrium quantity Government – correct market failure Internalize the externality Subsidy

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Externalities and Market Inefficiency Negative externalities Markets - produce a larger quantity than is socially desirable Positive externalities Markets - produce a smaller quantity than is socially desirable Government: internalize the externality Taxing goods that have negative externalities Subsidizing goods that have positive externalities
Описание слайда:
Externalities and Market Inefficiency Negative externalities Markets - produce a larger quantity than is socially desirable Positive externalities Markets - produce a smaller quantity than is socially desirable Government: internalize the externality Taxing goods that have negative externalities Subsidizing goods that have positive externalities

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Technology spillovers, industrial policy, and patent protection Technology spillover = Positive externality Impact of one firm’s research and production efforts on other firms’ access to technological advance Government: internalize the externality Subsidy = value of the technology spillover Industrial policy Government intervention in the economy that aims to promote technology-enhancing industries Patent law Protect the rights of inventors by giving them exclusive use of their inventions for a period of time
Описание слайда:
Technology spillovers, industrial policy, and patent protection Technology spillover = Positive externality Impact of one firm’s research and production efforts on other firms’ access to technological advance Government: internalize the externality Subsidy = value of the technology spillover Industrial policy Government intervention in the economy that aims to promote technology-enhancing industries Patent law Protect the rights of inventors by giving them exclusive use of their inventions for a period of time

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Public Policies Toward Externalities Command-and-control policies: regulation Regulate behavior directly Making certain behaviors either required or forbidden Cannot eradicate pollution Environmental Protection Agency (EPA) Develop and enforce regulations Protecting the environment Dictates maximum level of pollution Requires that firms adopt a particular technology to reduce emissions
Описание слайда:
Public Policies Toward Externalities Command-and-control policies: regulation Regulate behavior directly Making certain behaviors either required or forbidden Cannot eradicate pollution Environmental Protection Agency (EPA) Develop and enforce regulations Protecting the environment Dictates maximum level of pollution Requires that firms adopt a particular technology to reduce emissions

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Public Policies Toward Externalities Market-based policies Provide incentives Private decision makers - choose to solve the problem on their own 1. Corrective taxes and subsidies Corrective tax Induce private decision makers to take account of the social costs that arise from a negative externality Places a price on the right to pollute Reduce pollution at a lower cost to society
Описание слайда:
Public Policies Toward Externalities Market-based policies Provide incentives Private decision makers - choose to solve the problem on their own 1. Corrective taxes and subsidies Corrective tax Induce private decision makers to take account of the social costs that arise from a negative externality Places a price on the right to pollute Reduce pollution at a lower cost to society

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Why is gasoline taxed so heavily? The gas tax = corrective tax Three negative externalities Congestion Accidents Pollution Doesn’t cause deadweight losses Makes the economy work better Less traffic congestion, safer roads, and cleaner environment
Описание слайда:
Why is gasoline taxed so heavily? The gas tax = corrective tax Three negative externalities Congestion Accidents Pollution Doesn’t cause deadweight losses Makes the economy work better Less traffic congestion, safer roads, and cleaner environment

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Why is gasoline taxed so heavily? How high should the tax on gasoline be? Most European countries Gasoline taxes - much higher than those in the U.S. 2007 study, Journal of Economic Literature Optimal corrective tax on gasoline was $2.10 per gallon Actual tax in the United States: 40 cents Tax revenue from a gasoline tax Lower taxes that distort incentives and cause deadweight losses Some government regulations Production of fuel-efficient cars – unnecessary
Описание слайда:
Why is gasoline taxed so heavily? How high should the tax on gasoline be? Most European countries Gasoline taxes - much higher than those in the U.S. 2007 study, Journal of Economic Literature Optimal corrective tax on gasoline was $2.10 per gallon Actual tax in the United States: 40 cents Tax revenue from a gasoline tax Lower taxes that distort incentives and cause deadweight losses Some government regulations Production of fuel-efficient cars – unnecessary

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Public Policies Toward Externalities Market-based policies 2. Tradable pollution permits Voluntary transfer of the right to pollute from one firm to another New scarce resource: pollution permits Market to trade permits Firm’s willingness to pay Depend on its cost of reducing pollution
Описание слайда:
Public Policies Toward Externalities Market-based policies 2. Tradable pollution permits Voluntary transfer of the right to pollute from one firm to another New scarce resource: pollution permits Market to trade permits Firm’s willingness to pay Depend on its cost of reducing pollution

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Public Policies Toward Externalities 2. Tradable pollution permits Advantage of free market for pollution permits Initial allocation of pollution permits Doesn't matter Firms - reduce pollution at a low cost Sell whatever permits they get Firms - reduce pollution only at a high cost Buy whatever permits they need Efficient final allocation
Описание слайда:
Public Policies Toward Externalities 2. Tradable pollution permits Advantage of free market for pollution permits Initial allocation of pollution permits Doesn't matter Firms - reduce pollution at a low cost Sell whatever permits they get Firms - reduce pollution only at a high cost Buy whatever permits they need Efficient final allocation

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Public Policies Toward Externalities Reducing pollution using pollution permits or corrective taxes Firms pay for their pollution Corrective taxes - to the government Pollution permits, - buy permits Internalize the externality of pollution
Описание слайда:
Public Policies Toward Externalities Reducing pollution using pollution permits or corrective taxes Firms pay for their pollution Corrective taxes - to the government Pollution permits, - buy permits Internalize the externality of pollution

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The equivalence of corrective taxes & pollution permits 4
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The equivalence of corrective taxes & pollution permits 4

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Public Policies Toward Externalities Objections to the economic analysis of pollution “We cannot give anyone the option of polluting for a fee.” - former Senator Edmund Muskie People face trade-offs Eliminating all pollution is impossible Clean water and clean air – opportunity cost Lower standard of living
Описание слайда:
Public Policies Toward Externalities Objections to the economic analysis of pollution “We cannot give anyone the option of polluting for a fee.” - former Senator Edmund Muskie People face trade-offs Eliminating all pollution is impossible Clean water and clean air – opportunity cost Lower standard of living

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Public Policies Toward Externalities Clean environment - is a normal good Positive income elasticity Rich countries can afford a cleaner environment More rigorous environmental protection Clean air and clean water - law of demand The lower the price of environmental protection The more the public will want Economic approach Pollution permits and corrective taxes Reduces the cost of environmental protection Increase demand for a clean environment
Описание слайда:
Public Policies Toward Externalities Clean environment - is a normal good Positive income elasticity Rich countries can afford a cleaner environment More rigorous environmental protection Clean air and clean water - law of demand The lower the price of environmental protection The more the public will want Economic approach Pollution permits and corrective taxes Reduces the cost of environmental protection Increase demand for a clean environment

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Private Solutions to Externalities The types of private solutions Moral codes and social sanctions Charities Self-interest of the relevant parties Integrating different types of businesses Interested parties – enter a contract
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Private Solutions to Externalities The types of private solutions Moral codes and social sanctions Charities Self-interest of the relevant parties Integrating different types of businesses Interested parties – enter a contract

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Private Solutions to Externalities The Coase theorem If private parties can bargain without cost over the allocation of resources They can solve the problem of externalities on their own Private economic actors Can solve the problem of externalities among themselves Whatever the initial distribution of rights Interested parties - reach a bargain: Everyone is better off & Outcome is efficient
Описание слайда:
Private Solutions to Externalities The Coase theorem If private parties can bargain without cost over the allocation of resources They can solve the problem of externalities on their own Private economic actors Can solve the problem of externalities among themselves Whatever the initial distribution of rights Interested parties - reach a bargain: Everyone is better off & Outcome is efficient

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Private Solutions to Externalities Why private solutions do not always work High transaction costs Costs that parties incur in the process of agreeing to and following through on a bargain Bargaining simply breaks down Large number of interested parties
Описание слайда:
Private Solutions to Externalities Why private solutions do not always work High transaction costs Costs that parties incur in the process of agreeing to and following through on a bargain Bargaining simply breaks down Large number of interested parties

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