9)Suppose an exhaustible resource can be sold only this period or next period. The resource owner is considering selling 100 tons of the resource this period. The future value of the resource when 100 tons are sold this period is less than the present value of the 100 tons sold this period multiplied by one plus the interest rate. What should the resource owner do?

A) She should sell more than 100 tons this period.

B) She should sell only 100 tons this period.

C) She should sell less than 100 tons this period.

D) She should not sell any of the resource in either period.

10)For a monopoly, the value of the next worker equals

A) MPL.

B) MR MPL.

C) w/MPL.

D) p MPL.

11)The long-run labor demand curve is relatively flatter than the short-run labor demand curve because, in the short run,

A) the wage rate is fixed.

B) the firm cannot vary the amount of capital used.

C) the firm is a price taker.

D) All of the above.