1. Consumer surplus is not

a. the value of a good minus the price paid for it, summed over the quantity bought.

b. greater on the first unit sold than on the last unit sold.

c. greater on the last unit sold than on the first unit sold.

d. equal to the area below the demand curve and above the market price line.

2.The demand curve for hamburgers is the same as the

a. marginal benefit curve for hamburgers.

b. marginal cost curve of hamburgers.

c. consumer surplus curve of hamburgers.

d. All of the above.

3.A supply curve is

a. the same as a production possibilities frontier.

b. a marginal social benefit curve.

c. a marginal benefit curve.

d. a marginal cost curve.

e. a downward-sloping curve.

4.The opportunity cost of producing one more hot dog is $1.00. The price of a hot dog is $1.50. The producer surplus from selling one more hot dog is

a. $1.00

b. $1.50

c. $0.50

d. zero.

e. $2.50

5.Markets may not achieve an efficient allocation of resources when there are

a. external costs.

b. monopolies.

c. taxes.

d. all of the above