Welcome to votingmethods.net

This is the election methods website of Kevin Venzke. The content is mostly theory, and mostly related to single-winner rank ballot methods. I hope readers will find it interesting, with a number of things to experiment with.

I follow the election-methods mailing list. Read it from the beginning here.

Method calculators:
Rank Ballot Election Calculator 🧩 – results for 40+ methods, of all sorts, without resolution details.
Condorcet Calculator – demonstrating the main Condorcet methods using winning votes.
Later-No-Harm Method Calculator – an exhibition of the methods satisfying Douglas Woodall's Later-no-harm property.
Miscellaneous Method Calculator – some nice methods satisfying neither Condorcet nor Later-no-harm.
Condorcet Compromise Extension – a proposal extending Condorcet in line with a typical motivating argument for Condorcet.

Experiments and concepts:
Yee Diagram Generator 🧩 – make images with colorful win regions given various voter behavior.
Simulating truncation strategies 🧩 – a graphical simulation for 50+ methods, with many options.
Can IIA survive strategic voting? 🧩 – a spin-off of the above, on introducing an additional candidate into a scenario.
Condorcet Cycle Checker – a tool for method designers concerned about favorite betrayal.
Who is the median voter? – speculations on identifying this hypothetical voter from cast votes.

Multi-winner methods:
STV Calculator – a multi-winner PR-STV tool with some helpful resolution details.
STV in an issue space – a color scatter plot with various controls.
Finding the center-most voters – a possibility of incentivizing a group to identify their ideological center.

Historical content:
Election methods and criteria – My webpage from 2005, content left as is, except for some 2023 commentary in square brackets where I couldn't help myself.

🧩 – indicates support for writing your own methods.

Terms, disclaimers
Please use this site at your own risk. I can't guarantee that interactive functions won't crash your browser.
I collect no info about your usage except through the site visit counter.
Don't rehost this material elsewhere or repurpose the content. (Though if this site goes permanently offline, you can rehost. Nice of you to consider it.)
Thank you for visiting.

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