2022加拿大数学奥赛COMC报名开启，比赛时间已公布！
各国数学赛事的新赛季时间陆续敲定，除了广受关注的AMC系列、UKMT系列赛事，COMC加拿大数学学术活动也在报名中！加拿大的COMC赛事也是大家证明实力、丰富学术背景的选项之一，同样值得同学们关注！ COMC学术活动...
Edexcel A Level Economics A:复习笔记1.4.2 Government Failure
Government Failure Government failure occurs when the government intervenes in a market to correct market failure, but the intervention results in a more inefficient allocation of resources from so...
Edexcel A Level Economics A:复习笔记1.4.1 Government Intervention in Markets
Government Intervention in Markets Nearly every economy in the world is a mixed economy and has varying degrees of government intervention Governments intervention is necessary for several reasons ...
Edexcel A Level Economics A:复习笔记1.3.4 Information Gaps
Information Gaps Information gaps exist in nearly all free markets and distort market outcomes resulting in market failure One of the underlying assumptions of a free market is that there is perfec...
Edexcel A Level Economics A:复习笔记1.3.3 Public Goods
Public Goods A public good is substantially different to a private good Private goods are goods which firms are able to provide to generate profits. They can generate profits as these goods are exc...
Edexcel A Level Economics A:复习笔记1.3.2 Externalities
Externalities & Different Types of Costs Externalities occur when there is an external impact on a third party not involved in the economic transaction These impacts can be positive or negative...
Edexcel A Level Economics A:复习笔记1.3.1 Types of Market Failure
Understanding Market Failure In a free market, the price mechanism determines the most efficient allocation of scarce resources in response to the competing wants and needs in the marketplace Scarc...
Edexcel A Level Economics A:复习笔记1.2.10 Alternative Views of Consumer Behaviour
Alternative Views of Consumer Behaviour Free markets are built on the assumptions of rational decision making In classical economic theory, the word 'rational' means that economic agents are able t...
Edexcel A Level Economics A:复习笔记1.2.9 Indirect Taxes and Subsidies
Indirect Taxes An indirect tax is paid on the consumption of goods/services It is only paid if consumers make a purchase It is usually levied by the government on demerit goods to reduce the quanti...
Edexcel A Level Economics A:复习笔记1.2.8 Producer & Consumer Surplus
Producer & Consumer Surplus Consumer surplus is the difference between the amount the consumer is willing to pay for a product and the price they have actually paid For example, if a consumer i...
Edexcel A Level Economics A:复习笔记1.2.7 Price Mechanism
Functions of The Price Mechanism The price mechanism is the interaction of demand and supply in a free market This interaction determines prices which are the means by which scarce resources are al...
Edexcel A Level Economics A:复习笔记1.2.6 Price Determination
Price Determination & Equilibrium Price Determination In a free market economy, prices are determined by the interaction of demand and supply in a market A market is any place that brings buyer...
