Demand is perfectly inelastic when
A) a good has perfect substitutes.
B) an increase in supply does not change total revenue.
C) a decrease in supply decreases total revenue.
D) the price elasticity of demand is negative.
E) an increase in supply does not change the equilibrium quantity.
Suppose the multiplier is 2.5 and investment increases by $20 billion. Starting at
potential GDP, in the long run, equilibrium real GDP
A) increases by $50 billion.
B) increases by more than $50 billion.
C) decreases by less than $50 billion.
D) does not change.
E) increases by less than $50 billion.
Use the table below to answer the following questions.