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Chapter 14

Externalities and Public Goods

外部
外部
Externalities are outcomes of economic activities that affect third parties who are not directly involved in it. These impacts can be either positive or ...
私人成本和优势
私人成本和优势
Private cost is the expenses a business incurs while producing a good or the price paid by an individual in purchasing a good. For example, consider a ...
社会成本和效益
社会成本和效益
Private costs and benefits are the financial impacts on individuals or businesses directly involved in a transaction. However, when an additional unit of ...
负外部性
负外部性
A negative externality is a cost suffered by an unrelated third party due to an economic transaction. The costs created by negative externalities are not ...
正外部性
正外部性
Positive externalities occur when a third party benefits from an economic transaction without being directly involved. Take vaccines as an example. When ...
有效的污染水平
有效的污染水平
Producing goods often results in pollution as a byproduct, but eliminating all pollution isn't practical. Doing so would mean halting the production ...
价格机制:税金
价格机制:税金
Price-modification policies can correct externalities. One such policy is Pigovian taxes, named after economist Arthur Pigou. Pigovian taxes are designed ...
价格机制:补贴
价格机制:补贴
In situations where positive externalities exist, governments often employ Pigouvian subsidies to adjust market prices. Pigouvian subsidies are financial ...
数量机制:配额
数量机制:配额
Quantity-based interventions aim to address externalities by directly controlling the amount of a good or activity. Quotas are a prime example of this ...
基于价格与基于数量的干预措施
基于价格与基于数量的干预措施
Pollution can be reduced using two main strategies: a quota on emissions or a tax on emissions. But which one is better? Take the steel industry. A quota ...
可交易许可证市场
可交易许可证市场
Governments frequently struggle to accurately estimate each firm's pollution reduction costs and set appropriate quotas or taxes. Tradable permits ...
高效的回收量 I
高效的回收量 I
In an imaginary town, Greendale, residents carelessly dispose of recyclable plastics due to minimal additional trash pickup fees, leading to recyclable ...
高效的回收量 II
高效的回收量 II
In the town of Greendale, tackling the recyclable plastic waste issue with price or quantity mechanisms, such as a disposal fee, quota, or disposable ...
Coase 定理
Coase 定理
The Coase Theorem states that costless negotiation among market participants will lead to an efficient market outcome regardless of who holds legal ...
私人物品和公共资源
私人物品和公共资源
Private goods are items that a person can buy and use, which then prevents others from using them. For example, a slice of pizza. It is a private good ...
俱乐部用品和公共物品
俱乐部用品和公共物品
Club goods are products that are excludable but non-rivalrous. This means that access to these goods can be restricted to certain people, but one ...
重要公共物品
重要公共物品
Public goods are mainly provided by the government because they benefit everyone and cannot be limited only to those who pay for them. Private companies ...
公共产品的最佳水平
公共产品的最佳水平
In finding the optimal level of public goods, consider national defense as an example. Suppose a nation has two individuals, John and Jane. The graph ...
搭便车问题
搭便车问题
The free rider problem occurs when some people benefit from resources or services without paying for them. This issue arises because public goods are ...
公地悲剧
公地悲剧
The tragedy of the commons happens when individuals use a shared resource selfishly, harming everyone's interest, including their own. Consider a ...
财产权
财产权
Property rights refer to the legal control individuals or entities have over resources. It includes the right to use, sell, or lease these resources. When ...
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