In long-run competitive equilibrium, firms
a. earn positive economic profits.
b. have no incentive to make any changes.
c. earn losses on some units of the good they produce and sell.
d. do not produce the quantity of output at which MR = MC.
e. b and c
When price = $16, quantity demanded = 200. When price = $14, quantity demanded =
225. When the firm lowered price from $16 to $14, it discovered that demand is
__________ and total revenue __________ by ____________,
a. elastic; increased; $3,200
b. elastic; decreased; $3,150
c. inelastic; increased; $50
d. inelastic; decreased; $50
e. inelastic; decreased; $3,150