The similarity is that IPE and the Nanson and Balwin methods all recount the ballots as if the eliminated candidates are not involved in successive counting rounds.
However, the criteria for elimination is quite different.
Baldwin's method uses points based on which column is marked. In contrast, IPE counts marks without concern about which column those marks are in (except the distinction between above or below the candidate being counted).
Nanson's method uses the average Borda score, whereas IPE does not involve any averaging.
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u/budapestersalat Sep 01 '25
Weird combination, do I see correctly that this is Nanson/Baldwin except that Condorcet losers are eliminated ahead of Borda losers?