7• The following table shows the number of shirts or ties that two tailors, Joe and Harry, can make in one day.
Shirts Ties Joe 1 4 Harry 2 6

a. Joe’s opportunity cost of making one shirt is .

b. Joe’s opportunity cost of making one tie is

c. Harry’s opportunity cost of making one shirt is .

d. Harry’s opportunity cost of making one tie is .

e. Who has a comparative advantage in making shirts?

f. Who has a comparative advantage in making ties?
g. Who should specialize in making ties?
h. Who should specialize in making shirts?