Chapter 5: Elasticity Flashcards
Elasticity measures
the responsiveness of one variable when there is a change in another variable
increase in price=___________ in quantity demanded= __________ the quantity supplied
decrease;increase
the steepness of the demand curve gives us information about how
responsive the quantity demanded is to change in its price
a flat demand curve is
more responsive, demand is elastic (big decrease in quantity demand)
a steep demand curve is
less responsive, demand is inelastic (small decrease in quantity demand)
Determinants of the price elasticity of demand
availability of substitutes, necessities VS luxuries, time horizon, share of income spent on the good,
a product that has only a few substitutes (ex milk) is
Inelastic
a product that has many substitutes (ex. pepsi) is
Elastic
For important necessities like food, demand is
inelastic
For luxuries, demand is
elastic
a good where in the short run demand is inelastic but in the long run can become elastic ex. gasoline is
Time horizon
how do we calculate price elasticity?
%change in quantity demanded/% change in price
a negative number larger than -1 is
Elastic
a negative number between -1 and 0 is
Inelastic
how do we calculate Total Revenue?
price x quantity
TR changes based on
quantity demanded
if demand is inelastic TR and Price move in
the same direction
if demand is elastic TR and P move in
opposite directions
how to calculate cross price elasticity?
%change in demand for good 1 / %change in the price of good 2
goods that are substitutes have a ___________ price elasticity
positive number
goods that are complements have a ____________ price elasticity
negative number
the steepness of the supply curve gives us info on
how responsive the quantity supplies of a product is to change in its own price
if the supply curve is steep the supply is
inelastic
if the supply curve is flat the supply is
elastc
Determinants of the price elasticity of supply depends on, whats an example of an important determinant
how easy it is for suppliers to change their quantity supplied. an example is time horizon
how can we calculate price elasticity
% change in quantity supplied/ % change in price
If it is difficult to change the quantity supplied. increase in production costs is ___________, price increase is ________, the supply curve is _________ and the elasticity is ____________
large; large; steep; inelastic
If it is easy to the change the quantity supplied. increase in production costs is ___________, price increase is ________, the supply curve is _________ and the elasticity is ____________
small; small; flat; elastic
Inelastic Supply is ______ and ______________
steep; less responsive
Elastic Supply is __________ and ___________
flat; more responsive
Inelastic demand is _________ and ________________
steep; less responsive
Elastic demand is _________ and _________________
flat, more responsive