Definition of Monopoly A pure monopoly is defined as a single seller of a product, i.e. 100% of market share. In the UK a firm is said to have monopoly power if it has more than 25% of the market share. For example, Tesco @30% market share or Google 90% of search engine traffic. Monopoly …
Definition of Positive Externality: This occurs when the consumption or production of a good causes a benefit to a third party. For example: When you consume education you get a private benefit. But there are also benefits to the rest of society. E.g you are able to educate other people and therefore they benefit as …
A specific tax is a fixed amount of tax placed on a particular good. It is also referred to as a per-unit tax, and the tax will depend on the quantity sold (not price). Examples of specific taxes A tax of £0.40 on 500 ml sugary drinks. A tax of £3.92 per 20 pack of …
The law of unintended consequences refers to how economic decisions may have effects that are unexpected. Usually, this refers to an economic law which distorts consumer or producer behaviour in a way that is not expected. For example, a law may be implemented with the best intentions to help a group, but, if there are …
The business or trade cycle relates to the volatility of economic growth, and the different periods the economy goes through (e.g. boom and bust). There are many different factors that cause the economic cycle – such as interest rates, confidence, the credit cycle and the multiplier effect. Some economists also point to supply side explanations, …
A current account deficit occurs when the value of imports (of goods/services/inv. incomes) is greater than the value of exports. Policies to reduce a current account deficit involve: Devaluation of exchange rate (make exports cheaper – imports more expensive) Reduce domestic consumption and spending on imports (e.g. tight fiscal policy/higher taxes) Supply side policies to …
If the price of a good increases, then there will be two different effects – known as the income and substitution effect. If a good increases in price The good is relatively more expensive than alternative goods, and therefore people will switch to other goods which are now relatively cheaper. (substitution effect) – The increase in …
Definition: The natural rate of unemployment is the rate of unemployment when the labour market is in equilibrium. It is unemployment caused by structural (supply-side) factors. (e.g. mismatched skills) Diagram showing the natural rate of unemployment The natural rate of unemployment is the difference between those who would like a job at the current wage …