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Economics Chapter 3
Demand Terms
15
Economics
12th Grade
09/02/2010

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Term
demand schedule
Definition
a schedule showing the amounts of a good or service that buyers (or a buyer) wish to purchase at various prices during some time period
Term
law of demand
Definition
the principle that, other things equal, an increase in a product's price will reduce the quantity of it demanded, and conversely for a decrease in price
Term
diminishing marginal utility
Definition
the principle that as a consumer increases the consumption of a good or service, the marginal utility obtained from each additional unit of the good or service decreases
Term
income effect
Definition
a change in the quantity demanded of a product that results from the change in real income (purchasing power) caused by a change in the product's price
Term
substitution effect
Definition
a change in the quantity demanded of a consumer good that results from a change in its relative expensiveness caused by a change in the product's price
Term
demand curve
Definition
a curve illustrating demand
Term
determinants of demand
Definition
factors other than price that determine the quantities demanded of a good or service
Term
5 basic determinants of demand
Definition

1-consumers' tastes (preferences)

2-the number of buyers in the market

3-consumers' incomes

4-the prices of related goods

5-consumer expectations

Term
normal goods
Definition
a good or service whose consumption increases when income increases and falls when income decreases, price remaining constant
Term
inferior goods
Definition
a good or service whose consumption declines as income rises, prices held constant
Term
substitute good
Definition
products or services that can be used in place of eachother. when the price of one falls, the demand for the other product falls; conversely, when the price of one product rises, the demand for the other product rises
Term
complementary good
Definition
products and services that are used together. when the price of one falls, the demand for the other increases (and conversely)
Term
change in demand
Definition
a change in the quantity demanded of a good or service at every price; a shift of the demand curve to the left or right
Term
change in quantity demanded
Definition
a change in the amount of a product that consumers are willing and able to purchase because of a change in the prodcut's price
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