26 ❖ Chapter 22/Frontiers in Microeconomics
Table 22-1
Three friends — Tricia, Sarah, and Katie — are deciding where to go together for vacation. They all
agree that they should go to one of three places: Ireland, Italy, or Greece. They also agree that they
will have two pairwise votes to determine where to go on vacation, with the majority determining
the outcome on each vote. The first, second, and third choices for each person are as indicated in the
table below.
8. Refer to Table 22-1. If the first vote pits Ireland against Italy and the second vote pits Greece
against the winner of the first vote, then the outcome is as follows:
Ireland wins the first vote and Greece wins the second vote, so they go to Greece.
Ireland wins the first vote and Ireland wins the second vote, so they go to Ireland.
Italy wins the first vote and Italy wins the second vote, so they go to Italy.
Italy wins the first vote and Greece wins the second vote, so they go to Greece.
9. Refer to Table 22-1. If the first vote pits Ireland against Greece and the second vote pits Italy
against the winner of the first vote, then the outcome is as follows:
Ireland wins the first vote and Italy wins the second vote, so they go to Italy.
Ireland wins the first vote and Ireland wins the second vote, so they go to Ireland.
Greece wins the first vote and Greece wins the second vote, so they go to Greece.
Greece wins the first vote and Italy wins the second vote, so they go to Italy.
10. Refer to Table 22-1. If the first vote pits Italy against Greece and the second vote pits Ireland
against the winner of the first vote, then the outcome is as follows:
Italy wins the first vote and Ireland wins the second vote, so they go to Ireland.
Italy wins the first vote and Italy wins the second vote, so they go to Italy.
Greece wins the first vote and Greece wins the second vote, so they go to Greece.
Greece wins the first vote and Ireland wins the second vote, so they go to Ireland.
11. Refer to Table 22-1. Depending on the order of the pairwise voting,
the friends could go to either Ireland, Greece, or Italy.
the friends could go to either Ireland or Greece, but they will not go to Italy.
the friends could go to either Greece or Italy, but they will not go to Ireland.
the friends could go to either Ireland or Italy, but they will not go to Greece.