If a particular perfectly competitive industry uses only a small fraction of the supply of any of its inputs, the long run supply curve for that industry will tend to be:
a. vertical.
b. upward sloping.
c. horizontal.
d. downward sloping.
Question 2
Suppose labor productivity differences are the only determinants of comparative advantage, and Brazil and Chile both produce only coffee and sugar. In Chile, either 5 units of coffee or 2 units of sugar can be produced in one day. In Brazil, a day of labor produces either 2 units of coffee or 1 unit of sugar. What is the opportunity cost of producing coffee in Chile?
a. Half a pound of sugar
b. Two-fifth of a pound of sugar
c. 2 pounds of sugar
d. One-third of a pound of sugar
e. 4 pounds of sugar
