Bavarian MMP: Difference between revisions

* Because both halves of the ballot are weighted equally in determining party proportions, the incentives to strategically split your ballot across two "quasi-clone parties" (as happensin the so-called "decoy lists" that occur in, for instance, Welsh elections) are reduced.

However, there are two modifications, both inspired by how votes would transfer in STV, that can make Bavarian MMP even more robust. Both are changes to how party proportions are calculated in step 3; neither one requires a change to ballot format.

# If a ballot supports the winner in the local district, then the global part of that ballot is counted for the party of that local winner. (This is inspired by exhausting ballots in STV, and reduces the chances of "overhang".)

# If a ballot supports two different parties on its two halves, and exactly one of those two parties is nonviable (cannot win any seats), then it is counted as if both parts of that ballot supported the viable party. (This is inspired by transferring ballots in STV, and reduces the chances of "wasted/sub-threshold" voting power.)