13) Cross Elasticity Of Demand Flashcards
what does XED show
Whether relationship between two goods are
➡️complements
➡️substitutes
What does cross elasticity of demand mean
⚫️The responsiveness
➡️quantity demanded of one good
➡️to a change in the price of another
Whats the XED formula
%
Interpret the value of XED when its positive
⚫substitutes ➡️positive relationship between them ➡️if price of good goes up ➡️consumers may switch to alternative ➡️so demand for substitute rises
⚫️if relationship is weak
➡️between 0-1
⚫️if relationship is strong
➡️greater than one
Interpret XED when is negative
⚫️complements
➡️negative relationship
➡️if price of good goes up
➡️consumers reduce demand for its complement
⚫️if relationship is weak
➡️between zero and minus one
⚫️if relationship is strong
➡️less than minus one
Interpret the XED when the value is zero
⚫independent goods
➡️no relationship between them
➡️demand for one good
➡️is not depended on the changes of price for another good
Describe substitute goods like cornflake and weetibix graphically
⚫️positive relationship
➡️upward sloping demand curve
➡️price of cornflakes decreases
➡️demand for weetibix should also decrease
Describe complementary goods like cornflakes and milk graphically
⚫️negative relationship
➡️downward sloping demand curve
➡️if price of cornflake falls
➡️demand for milk increases
➡️if 10% rise in price of fish
➡️cause 2% rise in demand of chicken
⚫️Describe the XED
XED=%