BEC 5 M3: The Economic Marketplace Flashcards
Unit elastic
Definition: Unit elastic demand is an economic theory that assumes a change in price will cause an equal proportional change in quantity demanded
the relationship between price and quantity demanded is
inverse
a surplus can only arise if there is
a minimum price above the equilibrium price
elasticity of demand formula
% change in demand/%change in price
inferior good
one for which demand declines as income increases
price elasticity of demand
((Q1-Q2)/Q1)/((P2-P1)/P1)
movement along demand curve from one price-quantity combination to another is called:
change in quantity demanded
a price elasticity of demand of 2.0 means
demand will change x2 for any change in price
an increase in the price of a complementary good causes the demand curve to
shift to the left
Positive vs negative number in cross elasticity calculation
Positive number means they are substitutes of each other. Negative means they are complementary of each other
Positive vs negative number for income elasticity calculation
Positive number means superior good. Negative number means inferior good.