Currently IIA only examines whether removing a subset of losers changes the winner. A more strict criterion would check whether the relative ranking changes if any subset of candidates are removed. It might be worth distinguishing between cases that affect the ranking vs. cases that only affect the winner.
Currently IIA only examines whether removing a subset of losers changes the winner. A more strict criterion would check whether the relative ranking changes if any subset of candidates are removed. It might be worth distinguishing between cases that affect the ranking vs. cases that only affect the winner.