Economics Flashcards
(306 cards)
Own Price Elasticity
Measure of the responsiveness of the quantity demanded to change in a price. Negative if an increase in price decreases quantity demanded
Elastic
When quantity demanded is very responsive to a change in price (absolute value of elasticity > 1)
Inelastic
When quantity demanded is not very responsive to change in price (absolute value of elasticity < 1)
Perfectly Elastic
At any higher price, quantity demanded decreases to zero. Elasticity = infinity (horizontal line). When one or more goods are very good substitutes
Perfectly Inelastic
A change in price has no effect on quantity demanded. Elasticity = 0 (vertical line). Few or no good substitutes for a good
Portion of Income
The larger the proportion of income spent on a good, the more elastic an individual’s demand for that good
Time
Elasticity of demand tends to be greater the longer the time period since the price change
Inelastic Range
Lower part of the demand curve, where percentage change in quantity demanded is smaller than the percentage change in price. Total revenue will increase when price increases (percentage decrease in quantity demanded will be less than the percentage increase in price)
Elastic Range
Upper part of the demand curve, where percentage change in quantity demanded is greater than the percentage change in price. Total revenue will decrease when price increases (percentage decrease in quantity demanded will be greater than the percentage increase in price)
Unitary Elasticity
A 1% increase in price leads to a 1% decrease in quantity demanded (-1 elasticity). Point of greatest total revenue. Price increase moves into elastic region, price decrease moves into inelastic region
Income Elasticity
The sensitivity of quantity demanded to a change in income. Ratio of the percentage change in quantity demanded to the percentage change in income
Normal Goods
The sign of income elasticity is positive (an increase in income leads to an increase in quantity of goods demanded) –> positive income effect
Inferior Goods
Sign of income elasticity is negative (an increase in income leads to a decrease in quantity demanded) –> negative income effect
Cross Price Elasticity
The ratio of the percentage change in the quantity demanded of a good to the percentage change in the price of a related good
Substitutes
When an increase in the price of a related good increases the demand for a good (an increase in the price of one will lead consumers to purchase more of the other) –> cross price elasticity is positive (price of one is up, quantity of the other is up)
Complements
When an increase in price of a related good decreases demand for a good (an increase in the price of one leads consumers to purchase less of the other as well) –> cross price elasticity is negative
Substitution Effect
Always acts to increase the consumption of a good that has fallen in price
Income Effect
Can either increase or decrease consumption of a good that has fallen in price (total expenditure on the original bundle of goods falls as result of substitution effect)
Giffen Good
Inferior good for which the negative income effect outweighs the positive substitution effect when price falls (demand rises when price rises, and demand falls when price falls) –> bread, rice, wheat (few substitutes, substantial portion of buyer’s income)
Veblen Good
A higher price makes the good more desirable. Consumer gets utility from being seen to consume a good that has high status (luxury goods). This is not an inferior good. Both substitution and income effects of price increase decrease consumption
Factors of Production
Resources a firm uses to generate output
Land: where facilities are located
Labor: all workers (unskilled to management)
Capital: manufacturing facilities, equipment, machinery
Materials: raw materials and manufactured inputs
Production Function
Quantity of output that a firm can produce as a function of the amounts of capital and labor employed
Diminishing Marginal Productivity
The quantity of labor for which the additional output for each additional worker begins to decline (diminishing marginal returns)
Short Run
The time period over which some factors of production are fixed (capital) –> If total revenue is greater than total variable cost, and price is greater than average variable costs, firm can stay open in the short run. If average revenue is less than average variable costs, shut down