Elasticity of Demand / Supply Flashcards
What is PED
How responsive the quantity demanded of a good or service is to a change in price
Ped formula
% Change in Quantity demanded / % Change in price
Elastic When
PED > 1
Inelastic When
PED < 1
What is PES
How responsive the quantity supplied is to a change in price
PES formula
% change in quantity supplied / % change in price
Elastic when
PES > 1
Inelastic when
PES < 1
What is YED
How responsive the change in quantity demanded is to a change in income
YED formula
% change in quantity demanded / % change in income
Normal Necessity When
YED < 1
Normal Luxury When
YED > 1
What is XED
How responsive the change in quantity demanded for good A is to a change in price of good B
XED formula
% change in quantity demanded for good A / % change of price for good B
Complementary goods
XED < 0
Substitute goods
XED > 0
Unrelated goods
XED = 0