downward (upward).
3) Suppose population A, consisting of Al, Bob, Curt, Doris, and Ellie, receive annual
incomes of $5,000, $2,500, $1,250, $750, and $500, respectively.
Refer to the above information. What percentage of total income is received by the
richest quintile?
A.50
B.5
C.25
D.20
4)
In long-run equilibrium there will be no economic profit in a purely competitive static
economy because:
A.barriers to entry will prevent profit from arising.
B.there will be no uncertainty, no innovations, and no monopoly.
C.there will be no need for professional managers and therefore no profit rewards will
be needed.
D.the marginal revenue product of capital will be zero.
5) The individual firm in a purely competitive labor market faces:
A.a perfectly elastic labor supply curve and a downsloping labor demand curve.
B.a perfectly elastic labor demand curve and an upsloping labor supply curve.
C.labor demand and labor supply curves both of which are perfectly elastic.
D.a downsloping labor demand curve and an upsloping labor supply curve.