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Demand
Economics
Question | Answer |
---|---|
Demand | The amount consumers desire to purchase at various prices at any given time |
Effective Demand | Consumers must be willing to buy AND be capable of paying the price set by the supplier |
Law of Demand | If Price rises – Quantity demanded falls and vice versa |
Individual Demand Curve | A graph showing the different quantities of a good that an individual consumer is prepared to buy at each price |
Market Demand Schedule | Lists the different quantities of a good that all consumers in the market are prepared to buy at each price. It is derived by adding together all the individual demand schedules for the good |
Factors affecting the demand for a good | Dx = f ( Px, Pog, Y, T, E, G, U) |
It causes a movement along a demand curve | Price of the good itself |
It shifts the demand curve inwards or outwards | Price of other goods , tastes, expectations of future prices, govt regulations, unplanned factors and Income. |
The purchasing power of a person's money | Real Income |
A good with a positive income effect Y increases , D increases | Normal Good |
A good with negative income effect Y increases , D decreases | Inferior good |
A rise in price of this good will cause an increase in qty demanded | Snob good |
Goods that are in joint demand , the use of one involves the use of the other | Complementary Goods |
Good that satisfy the same needs , they are similar | Substitute Goods |
A table showing the different quantities of a good a consumer is prepared to buy at each price | Individual demand schedule |
A good for which quantity rises if the price rises and vice-versa | Giffen good |
If the price of a good falls the real income of the consumer is increased, allowing more of the good to be purchased | Income effect |
If the price of a good falls , the consumer is likely to buy more of it because it is now cheaper relative to other goods | Substitution effect |
The extra satisfaction a consumer enjoys from consuming an extra unit of a good | Marginal Utility |
Payments to individuals where No FOP is supplied in return | Transfer Payments |
Consumers spend their income where the marginal utility to price is the same for all goods | Law of Equi-Marginal returns / Equi- Marginal Principle |
Demand that occurs when the demand for two or more products are used together. | Joint Demand |
When a particular type of goods is used to produce more than one type of product | Composite demand |
The difference between the highest price a consumer is willing to pay for a good or service and the amount that they actually do pay | Consumer Surplus |