Chapter 5 (elasticity) Flashcards
elasticity
a measure of responsiveness
price elasticity of demand
how steep/flat a demand curve is; how much quantity demanded changes when the price changes(how sensitive demand is to a change in price)
price elasticity of supply
how steep/flat the supply curve is; how much quantity supplied changes when the price changes(how sensitive supply is to a change in price)(ability of sellers to change he amount of good they produce)
income elasticity of demand
how does quantity demanded change when income changes
cross-price elasticity of demand
how does quantity demanded change when the price of related goods changes
how does and inelastic curve look
very steep. (more verticle)
how does an elastic curve look
very flat (more horizontal)
determinants of price elasticity of demand (4)
- availability of close substitutes
- necessity vs. luxury (how bad do u need it)
- definition of the market (meat vs. hamburgers)
- time horizon (elasticity is different in short-run vs. long-run)
total revenue
the value of what is sold (QP)(quantityprice)
elastic price elasticity of demand is ___1
- greater than
- this means that quantity is changing more than price. total revenue decreases as prices rise
inelastic price elasticity of demand is___1
- less than
- this means that quantity is changing less than price. total revenue increases as prices rise
unity elastic price elasticity of demand is____1
- equal to
- this means that quantity changes exactly the same percent as price. total revenue does not change as price rises
if cross price elasticity of demand is < 0 then the two goods are ___
compliments
if cross price elasticity of demand is > 0, then the two goods are____
subsitutes
if income elasticity of demand is > 0, then goods are___
normal