Vote for one''s least preferred candidate

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Reference no: EM13176251

In the system of approval voting, each voter may vote for as many candidates as she wishes. If there are three candidates, a voter may vote for 1,2, or 3 candidates. The winner is the candidate receiving the most votes (listed on the ballot of the most citizens). Each voter has strict preferences over the candidates (such as preferring candidate 3 to candaidate 2 to candidate 1, with no indifference).

A. Show that any action that includes a vote for one's least preferred candidate is weakly dominated.

B. Show that any action that does not include a vote for one's most preferred candidate is weakly dominated.

C. Suppose voter A perfers candidate 1 to 2 to 3 to 4 (where there are 4 candidates). Show that all actions that consist of voting for up to three candidates and not skipping a lower numbered candidate are not weakly dominated (voting for 1 only, voting for 1 and 2, or voting for 1,2, and 3 are not weakly dominated).

Reference no: EM13176251

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