The idea would be this: keep Plurality, but let voters “circle” a candidate (or check a box at the top of the ballot) to allow this candidate to trade their vote. This would allow voters to choose weaker candidates without fear, and if the candidates are honest, eliminates vote-splitting. There would be less risk of corruption, because voters make the decision to make their vote tradeable or not, not the candidates.
Example: Five candidates in a race. 20% of the voters feel coerced to pick one of the two frontrunners under Plurality. Under OAV, they simply mark the box for vote-trading, and their votes ultimately still count. Over time, perhaps the minor candidates start to get elected.
This is a less complete solution than the ones we’re looking at, but I think it could have a huge benefit over Plurality at little cost.
It might even be more possible to get this passed in certain jurisdictions than other systems (because of the minimal change required), but that’s just a wild guess for now.
It also resolves much of the trust issues that voting reformers and the public have around Asset, as only a voter who has strong trust in their candidate (or who has been observing the political process keenly) is likely to permit vote-trading for their candidate.
There could be two implementations: a checkbox at the very top of the ballot, permitting or not permitting every candidate to trade your vote, or a checkbox/circle thingy for each candidate you vote on, or something in between.
Edit: Maybe you could vote for one candidate, while letting another transfer your vote? Seems like it’d have security and legitimacy issues, but might have useful applications too.