A perfectly inelastic supply curve in a competitive market:
a. Exists when firms cannot vary input usage.
b. Means the equilibrium price must be zero.
c. Says the market supply curve is horizontal.
d. Implies a vertical demand curve.
I picked D, which was wrong. The answer is A.
However, the answer says this:Perfectly inelastic supply curves are also vertical representing that supply is insensitive to changes in price; i.e., the quantity supplied will not change as price changes.
Perfectly inelastic supply curves would exist if firms cannot vary input usage. Regardless of price, the firm has to use all inputs if it produces at all.
Doesn't that make D right?
A - 75
B - 78 God is good.
F - 77 Answered prayers.
R - 84! Done!!
Paperwork sent - waiting for license!!
Still on a cloud and in shock. Through God, all things will happen.