64 votes

Has there ever been a successful shift from a two-party system to a multi-party system in modern history?

New Zealand switched from first-past-the-post to "mixed member proportional representation (MMP)" starting in the 1996 election (https://nzhistory.govt.nz/politics/fpp-to-mmp). Seats won by ...
user103496's user avatar
  • 5,545
26 votes
Accepted

Could the US become a multi-party democracy organically (without a change to the constitution)?

If so, then why the focus on electoral reform? Is the absence of exact proportional representation really what is keeping countries like the US and the UK from a multi-party system, or is it just more ...
ohwilleke's user avatar
  • 79.3k
18 votes

Has there ever been a successful shift from a two-party system to a multi-party system in modern history?

France France, though formally a multi-party system, was for about half a century essentially a two-party competition between the socialist party (Parti socialiste) and the right-wing gaullist party ...
Roger V.'s user avatar
  • 20.9k
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
  • 1,139
11 votes

What is the most significant currently active organization using quadratic voting?

Colorado's Recently Terminated Experiment Quadratic voting has been used for limited matters (setting budget agenda priorities) by Democrats in Colorado's state legislature since 2019. In Colorado, ...
ohwilleke's user avatar
  • 79.3k
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
Accepted

What is the maximum number of seats possible in the Bundestag?

Since you are talking about overhang and leveling seats, you must be referring to the old election system which parliament replaced last month. In the old system, everyone who gets the most votes in ...
meriton's user avatar
  • 4,155
9 votes
Accepted

Congressional vs. Party Votes: Secrets & Differences

Open voting is a fundamental principle of Congress and other Parliament-like bodies. This is because Congress is a public body composed of representatives. To judge how well you have been represented, ...
James K's user avatar
  • 120k
7 votes

How would the National Popular Vote Interstate Compact handle non-FPTP elections?

The National Popular Vote website has the text bill with an explanation of the provisions. The one-state veto is considered. They even name-check 1960 Alabama. Similarly, in the unlikely event that a ...
Kelvin Sherlock's user avatar
7 votes

Where does First Past The Post voting favour left wing parties?

General Concepts First past the post systems provide representation in elected offices that is disproportionately high relative to the percentage of people who support a political party or group if: ...
ohwilleke's user avatar
  • 79.3k
6 votes

Why the US does not have strong local parties except in Puerto Rico?

In U.S. electoral politics, federal electoral offices and state and local electoral offices have become institutionally entwined with each other, although some cities with officially non-partisan ...
ohwilleke's user avatar
  • 79.3k
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
  • 50.8k
6 votes

Has there ever been a successful shift from a two-party system to a multi-party system in modern history?

Québec, although not a country, was basically a two-party state (or province) from about 1976 to 2018. There were more than two parties running, but only two of them were popular enough to gain enough ...
Pierre Paquette's user avatar
5 votes
Accepted

What is the official reason for the low error rate of the 100k signature requirement for presidential candidates in Russia

Official reason for the existence of this rule is pretty straightforward - independent candidates have to demonstrate they have support in many regions of the Federation. Since the limit is 2500 ...
Danila Smirnov's user avatar
5 votes

Has there ever been a successful shift from a two-party system to a multi-party system in modern history?

Australia has long used preferential voting systems at a Federal level and uses various forms of ranked voting for almost all elections, but such preferential voting was only introduced for federal ...
rysch's user avatar
  • 159
5 votes
Accepted

Where does First Past The Post voting favour left wing parties?

In 2015, in the Canadian province of Alberta, after the Wild-Rose party split from the conservatives, the left wing NDP won a majority of seats (for the first time ever) with only 40% of the vote, ...
Eugene's user avatar
  • 2,355
4 votes

Why the US does not have strong local parties except in Puerto Rico?

The US two party system is supported not only by the first-past-the-post system but also by the fact that the two main parties are huge fundraising engines, unfettered by the campaign finance rules ...
DJClayworth's user avatar
  • 15.4k
4 votes

Why the US does not have strong local parties except in Puerto Rico?

The voting system in Puerto Rico is different than that used in US states. It is that difference that allows for smaller parties to gain seats in the legislature. The voting system in Puerto Rico is a ...
Rick Smith's user avatar
  • 35.5k
3 votes

What are the pros and cons of ranked-choice voting compared to first-past-the-post voting?

RCV advocates are not entirely honest about failures of the Instant-Runoff (IRV) method nor that the method can be meaningfully corrected. I had recently published a paper regarding RCV in the ...
robert bristow-johnson's user avatar
3 votes

Could the US become a multi-party democracy organically (without a change to the constitution)?

Could the US become a multi-party democracy organically (without a change to the constitution)? Yes, for example either one of the following organic changes could enable an effective multi-party ...
Timur Shtatland's user avatar
3 votes

Voting system with two votes as a defense against fear of voting for a loser - is it anywhere in the world?

The U.S. Constitution originally gave electors two votes on the same ballot for presidential elections The Electors shall meet in their respective States, and vote by Ballot for two Persons ... they ...
pygosceles's user avatar
3 votes

Alternative to both the Electoral College and the National Popular Vote

This is not a politically viable system. It is overcomplex and has multiple arbitrary choices:You arbitrarily exclude states that are bigger than average. You arbitrarily only allow for A and B ...
James K's user avatar
  • 120k
2 votes

Where does First Past The Post voting favour left wing parties?

Scottish Parliament That is, of course, if you consider the Scottish National Party a "left-wing or centrist" party and not "conservative", which I think is fair despite their ...
ccprog's user avatar
  • 8,214
2 votes

Gerrymandering, Efficiency Gap Formula

Hint: since this an equal districts arrangement, the efficiency gap has a simplified formula that only depends on the proportions of votes and the proportion of seats won by one party EG=(PS-1/2)-2(PV-...
the gods from engineering's user avatar
2 votes

Where does First Past The Post voting favour left wing parties?

That pretty much just happened in the UK - specifically Tamworth. It looks like there was tactical voting for Labour by Liberal Democrat and possibly Green supporters but, interestingly, if the voters ...
ItWasLikeThatWhenIGotHere's user avatar
2 votes

What legal impediments might there be to alternate voting systems?

I notice that the one thing that I think this question was looking for has not been mentioned yet at all: 2 USC § 2c there shall be established by law a number of districts equal to the number of ...
wonderbear's user avatar
  • 1,875
2 votes

What voting process to use to fill multiple roles when voted for by the applicants

The matrix vote is a voting procedure which can be used when one group of people wishes to elect a smaller number of persons, each of whom is to have a different assignment.
endolith's user avatar
  • 3,552
1 vote

What are the pros and cons of ranked-choice voting compared to first-past-the-post voting?

The German parliament 1918-1933 was elected by proportional representation, therefore neither RCV nor FPTP. The Reichspraesident (president; note that Hitler was chancellor, not president, at least as ...
Christian Hennig's user avatar
1 vote

What are the pros and cons of ranked-choice voting compared to first-past-the-post voting?

So the other answer was about how the IRV method does not always elect the consistent majority candidate nor always prevents the spoiler effect and we didn't yet get to the issue of Precinct ...
robert bristow-johnson's user avatar
1 vote

What is the most significant currently active organization using quadratic voting?

Taiwan's annual Presidential Hackathon has used Quadratic Voting to judge contestants since 2019. From GovInsider.Asia's interview with Digital Minister Audrey Tang: If you were to share one piece of ...
user103496's user avatar
  • 5,545

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