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17 votes
Accepted

In countries using Single Transferable Vote, how are voting results presented?

Let's consider the classic example: Australia, which has used STV/IRV for more than a century. For calculations of votes, we need to consider each electorate separately. Calculation of the global ...
Zeus's user avatar
  • 1,136
10 votes

In countries using Single Transferable Vote, how are voting results presented?

Adding on further context to Zeus's very good answer: In Australia, where the Senate results are done using STV on a per-state level, voters are allowed to vote for a party as a whole, rather than ...
Jim Cullen's user avatar
9 votes

Difference between RCV and STV

Ranked Choice Voting (RCV) is a superset of many different election systems, with Single Transferable Vote (STV) being one of them. So every STV election is a RCV election, but not every RCV election ...
Philipp's user avatar
  • 77.9k
8 votes
Accepted

In Single Transferable Vote elections, how bad is it to have a lot of wasted votes and 1+ candidates with low keep factors?

The Single Transferable Vote system was specifically designed to handle this situation. A low keep-factor on several candidates means that it was a very good decision to use the STV system for this ...
Philipp's user avatar
  • 77.9k
6 votes
Accepted

Is this a good way to count Single Transferable Vote ballots?

I think the fact that you never eliminate candidates could be a problem - in same cases you won't even get a result. Let's say you have 10 candidates trying for 5 slots, and 1000 votes. Each ...
D M's user avatar
  • 2,386
6 votes

Is this a good way to count Single Transferable Vote ballots?

The biggest problem that I see with this is that it is possible to get different results in a recount. So I would never recommend it for a government election. You'd have politicians trying to game ...
Brythan's user avatar
  • 90k
6 votes

In countries using Single Transferable Vote, how are voting results presented?

In the case of New York City's latest mayoral primary the data was made available in the form of a collection of CSV files (click on 'Download CVR data'). There's no metadata or readme accompanying ...
JonathanReez's user avatar
  • 51.4k
6 votes

Can this paradox happen in single transferable vote?

Yes. Consider the following (somewhat contrived) scenario. There are 300 voters and 5 candidates. The election uses the formula (number of votes) / (seats to fill) to determine the quota. Votes are as ...
Princess Ada's user avatar
  • 1,494
4 votes

Does Meek STV Incentivise Strategic Voting?

Note: for anybody wondering how Meek STV works, see this and this Tl;dr Yes, it incentivizes strategic voting Arrow’s impossibility theorem Arrows impossibility theorem says that no voting system can ...
Ekadh Singh - Reinstate Monica's user avatar
4 votes

With a single transferable vote, how are the transfers selected?

Here is the wikipedia article on STV vote transfers in general, and here is a webpage describing the method for Ireland in particular. I don't want to post a link-only answer, but the description for ...
Acccumulation's user avatar
4 votes
Accepted

Does Ireland's single-transferable vote (STV) system weaken party discipline?

There is not much evidence for it. In particular there is a high level of discipline to the Irish political parties. (Source) That study contains a short analysis of factors that may affect the ...
James K's user avatar
  • 123k
4 votes

Is this a good way to count Single Transferable Vote ballots?

One key feature of elections is trust in the counting method. Which makes choosing your own system a bit of an issue - not least given the flaws people are picking up on. There are bodies (such as ...
Duke Bouvier's user avatar
  • 1,354
3 votes

How long does it take to count votes in different voting systems?

It might be worth noting that parts of the UK already use preferential voting systems in local governmental elections, including STV in Scotland and Northern Ireland, and the supplementary vote (a ...
origimbo's user avatar
  • 21.4k
3 votes

How long does it take to count votes in different voting systems?

When a candidate gets a majority in the first round, there is no difference. It is also usually possible to determine that all but the top two candidates did not win, even if it is not possible to ...
ohwilleke's user avatar
  • 83.7k
3 votes

Presidential Election via STV?

No Single Transferable Vote (STV) is a multiple-winner system. It works in multi-member legislative races because more than one is elected at a time. A version is actually used in Australia now. It ...
Brythan's user avatar
  • 90k
3 votes

STV - what happens if I miss a number?

This is a matter for the judgement of the returning officer. The key principles are given by the electoral commission 3.20 The decision of the (Acting) Returning Officer is final, subject only to ...
James K's user avatar
  • 123k
2 votes
Accepted

Is it possible to implement electoral threshold in single-transferable vote (STV) system?

Yes; it's called the Modified d'Hondt electoral system. Modified d'Hondt electoral system is a variant of single transferable voting, where an electoral threshold for parties is applied. The ...
dan04's user avatar
  • 4,350
1 vote

How long does it take to count votes in different voting systems?

As a programmer, the initial count should be available as soon as all the votes are scanned. It's really an easy thing to program, and the data is all electronic. The limiting factor isn't the voting ...
David Rice's user avatar
  • 4,850

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