In the ancient country of Roma, only two goods, spaghetti and meatballs, are
produced. There are two tribes in Roma, the Tivoli and the Frivoli. By
themselves, the Tivoli each month can produce either 30 pounds of spaghetti
and no meatballs, or 50 pounds of meatballs and no spaghetti, or any
combination in between. The Frivoli, by themselves, each month can produce 40
pounds of spaghetti and no meatballs, or 30 pounds of meatballs and no
spaghetti, or any combination in between.
a. Assume that all production possibility frontiers are straight lines. Draw
one diagram showing the monthly production possibility frontier for the Tivoli
and another showing the monthly production possibility frontier for the
Frivoli. Show how you calculated them.
b. Which tribe has the comparative advantage in spaghetti production? In
meatball production? In A.D. 100 the Frivoli discover a new technique for
making meatballs that doubles the quantity of meatballs they can produce each
month.
c. Draw the new monthly production possibility frontier for the Frivoli.
d. After the innovation, which tribe now has an absolute advantage in
producing meatballs? In producing spaghetti? Which has the comparative
advantage in meatball production? In spaghetti production?