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Economics Ch 4
Demand
Term | Definition |
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demand | the combination of quantities someone would be willing and able to buy at a given moment |
incentive | a motivating influence that causes someone to buy more or less of an item; usually related to price |
marginal utility | the extra usefulness or additional satisfaction a person gets from acquiring one more unit of a product |
income effect | the change in quantity demanded caused by a change in a consumer's pay and the price of a product |
substitution effect | the change in quantity demanded caused by a change in the price of a good relative to other goods |
substitutes | competing products that can be used in place of another product; the increase in price of one product leads to higher demand of the other |
compements | products that increase the use of other products; the increase in the price of a product reduces demand for its complement |
elasticity | the measure of responsiveness that tells how a dependent variable like quantity demanded responds to changes in independent variables like price |
ineleastic | the percentage change in the independent variable (price) causes a less than proportionate change in the dependent variable (quantity demanded) |