A perfectly competitive market is initially in long-run competitive equilibrium. Then,
market demand increases. As a result, existing firms in the market begin to
__________. By the time all adjustments have been made, profits will __________.
a. earn positive economic profit, rise even higher
b. earn positive economic profit; be back at zero
c. produce more output; be less than zero
d. produce less output; rise
e. earn positive economic profit; turn into losses
An increase in the number of buyers in a particular market for a good will result in a
___________________ for that good.
a. movement up along the demand curve
b. movement down along the demand curve
c. leftward shift in the demand curve
d. rightward shift in the demand curve
If the wage rate increases from $12 to $13 and, as a result, the quantity demanded of
labor decreases from 400 workers to 380 workers, then the absolute value of the
elasticity of demand for labor is
a. 0.78.