Stable Voting

Violation of Positive Involvement

Profile type: Profile
Config: 4 c, 7 v
Parameters: check_probabilities=True

3 loses in the full profile, but 3 is a winner after removing voter with the ranking (3, 2, 1, 0):

Full profile:
+---+---+---+---+---+
| 2 | 2 | 1 | 1 | 1 |
+---+---+---+---+---+
| 1 | 2 | 2 | 3 | 3 |
| 3 | 0 | 3 | 0 | 2 |
| 2 | 1 | 0 | 1 | 1 |
| 0 | 3 | 1 | 2 | 0 |
+---+---+---+---+---+
Profile([[1, 3, 2, 0], [2, 0, 1, 3], [2, 3, 0, 1], [3, 0, 1, 2], [3, 2, 1, 0]], rcounts=[2, 2, 1, 1, 1], cmap={0: '0', 1: '1', 2: '2', 3: '3'})
Stable Voting winner is {2}

Profile with voter removed:
+---+---+---+---+
| 2 | 2 | 1 | 1 |
+---+---+---+---+
| 1 | 2 | 2 | 3 |
| 3 | 0 | 3 | 0 |
| 2 | 1 | 0 | 1 |
| 0 | 3 | 1 | 2 |
+---+---+---+---+
Profile([[1, 3, 2, 0], [2, 0, 1, 3], [2, 3, 0, 1], [3, 0, 1, 2]], rcounts=[2, 2, 1, 1], cmap={0: '0', 1: '1', 2: '2', 3: '3'})
Stable Voting winners are {1, 2, 3}