In Exhibit 10-5, at what wage rate will the firms stop hiring these workers?

The growth rate of real GDP per person equals the

A) population growth rate plus the growth rate of real GDP. B) change in the economic growth rate divided by the change in the population growth rate. C) the economic growth rate per person divided by the change in the population growth rate. D) growth rate of real GDP minus the growth rate of the population. E) population growth rate plus the growth rate of real GDP then divided by the initial level of real GDP.

Suppose a buyer hires an interpreter who charges $5 to negotiate a deal with a seller. The buyer's valuation of the good is $50 and the seller's opportunity cost is $35 . If the net benefit to the buyer is equal to the same received by the seller, what is the price agreed upon by the two parties?

a. $42 b. $40 c. $44 d. $38